Unix version of EFI emulator

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2182 6f19259b-4bc3-4df7-8a09-765794883524

EdkUnixPkg/Dxe/UnixThunk/Bus/BlockIo/ComponentName.c

@@ -0,0 +1,187 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  ComponentName.c
+
+Abstract:
+
+--*/
+
+#include "UnixBlockIo.h"
+
+//
+// EFI Component Name Functions
+//
+EFI_STATUS
+EFIAPI
+UnixBlockIoComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  );
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
+  IN  EFI_HANDLE                                      ControllerHandle,
+  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
+  IN  CHAR8                                           *Language,
+  OUT CHAR16                                          **ControllerName
+  );
+
+//
+// EFI Component Name Protocol
+//
+EFI_COMPONENT_NAME_PROTOCOL     gUnixBlockIoComponentName = {
+  UnixBlockIoComponentNameGetDriverName,
+  UnixBlockIoComponentNameGetControllerName,
+  "eng"
+};
+
+static EFI_UNICODE_STRING_TABLE mUnixBlockIoDriverNameTable[] = {
+  { "eng", L"Unix Block I/O Driver" },
+  { NULL , NULL }
+};
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the EFI Driver.
+
+  Arguments:
+    This       - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    Language   - A pointer to a three character ISO 639-2 language identifier.
+                 This is the language of the driver name that that the caller 
+                 is requesting, and it must match one of the languages specified
+                 in SupportedLanguages.  The number of languages supported by a 
+                 driver is up to the driver writer.
+    DriverName - A pointer to the Unicode string to return.  This Unicode string
+                 is the name of the driver specified by This in the language 
+                 specified by Language.
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the Driver specified by This
+                            and the language specified by Language was returned 
+                            in DriverName.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - DriverName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  return LookupUnicodeString (
+          Language,
+          gUnixBlockIoComponentName.SupportedLanguages,
+          mUnixBlockIoDriverNameTable,
+          DriverName
+          );
+}
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
+  IN  EFI_HANDLE                                      ControllerHandle,
+  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
+  IN  CHAR8                                           *Language,
+  OUT CHAR16                                          **ControllerName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the controller
+    that is being managed by an EFI Driver.
+
+  Arguments:
+    This             - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    ControllerHandle - The handle of a controller that the driver specified by 
+                       This is managing.  This handle specifies the controller 
+                       whose name is to be returned.
+    ChildHandle      - The handle of the child controller to retrieve the name 
+                       of.  This is an optional parameter that may be NULL.  It 
+                       will be NULL for device drivers.  It will also be NULL 
+                       for a bus drivers that wish to retrieve the name of the 
+                       bus controller.  It will not be NULL for a bus driver 
+                       that wishes to retrieve the name of a child controller.
+    Language         - A pointer to a three character ISO 639-2 language 
+                       identifier.  This is the language of the controller name 
+                       that that the caller is requesting, and it must match one
+                       of the languages specified in SupportedLanguages.  The 
+                       number of languages supported by a driver is up to the 
+                       driver writer.
+    ControllerName   - A pointer to the Unicode string to return.  This Unicode
+                       string is the name of the controller specified by 
+                       ControllerHandle and ChildHandle in the language specified
+                       by Language from the point of view of the driver specified
+                       by This. 
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the user readable name in the 
+                            language specified by Language for the driver 
+                            specified by This was returned in DriverName.
+    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - ControllerName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This is not currently managing 
+                            the controller specified by ControllerHandle and 
+                            ChildHandle.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  EFI_STATUS              Status;
+  EFI_BLOCK_IO_PROTOCOL   *BlockIo;
+  UNIX_BLOCK_IO_PRIVATE *Private;
+
+  //
+  // This is a device driver, so ChildHandle must be NULL.
+  //
+  if (ChildHandle != NULL) {
+    return EFI_UNSUPPORTED;
+  }
+
+  //
+  // Get our context back
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiBlockIoProtocolGuid,
+                  (void *)&BlockIo,
+                  gUnixBlockIoDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (EFI_ERROR (Status)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  Private = UNIX_BLOCK_IO_PRIVATE_DATA_FROM_THIS (BlockIo);
+
+  return LookupUnicodeString (
+          Language,
+          gUnixBlockIoComponentName.SupportedLanguages,
+          Private->ControllerNameTable,
+          ControllerName
+          );
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/BlockIo/DriverConfiguration.c

@@ -0,0 +1,338 @@
+/*++
+
+Copyright (c) 2004 - 2005, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  DriverConfiguration.c
+
+Abstract:
+
+--*/
+
+#include "UnixBlockIo.h"
+
+//
+// EFI Driver Configuration Functions
+//
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverConfigurationSetOptions (
+  IN  EFI_DRIVER_CONFIGURATION_PROTOCOL                      *This,
+  IN  EFI_HANDLE                                             ControllerHandle,
+  IN  EFI_HANDLE                                             ChildHandle  OPTIONAL,
+  IN  CHAR8                                                  *Language,
+  OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED               *ActionRequired
+  );
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverConfigurationOptionsValid (
+  IN  EFI_DRIVER_CONFIGURATION_PROTOCOL               *This,
+  IN  EFI_HANDLE                                      ControllerHandle,
+  IN  EFI_HANDLE                                      ChildHandle  OPTIONAL
+  );
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverConfigurationForceDefaults (
+  IN  EFI_DRIVER_CONFIGURATION_PROTOCOL                      *This,
+  IN  EFI_HANDLE                                             ControllerHandle,
+  IN  EFI_HANDLE                                             ChildHandle  OPTIONAL,
+  IN  UINT32                                                 DefaultType,
+  OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED               *ActionRequired
+  );
+
+//
+// EFI Driver Configuration Protocol
+//
+EFI_DRIVER_CONFIGURATION_PROTOCOL gUnixBlockIoDriverConfiguration = {
+  UnixBlockIoDriverConfigurationSetOptions,
+  UnixBlockIoDriverConfigurationOptionsValid,
+  UnixBlockIoDriverConfigurationForceDefaults,
+  LANGUAGESUPPORTED
+};
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverConfigurationSetOptions (
+  IN  EFI_DRIVER_CONFIGURATION_PROTOCOL                      *This,
+  IN  EFI_HANDLE                                             ControllerHandle,
+  IN  EFI_HANDLE                                             ChildHandle  OPTIONAL,
+  IN  CHAR8                                                  *Language,
+  OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED               *ActionRequired
+  )
+/*++
+
+  Routine Description:
+    Allows the user to set controller specific options for a controller that a 
+    driver is currently managing.
+
+  Arguments:
+    This             - A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL instance.
+    ControllerHandle - The handle of the controller to set options on.
+    ChildHandle      - The handle of the child controller to set options on.  This
+                       is an optional parameter that may be NULL.  It will be NULL 
+                       for device drivers, and for a bus drivers that wish to set 
+                       options for the bus controller.  It will not be NULL for a 
+                       bus driver that wishes to set options for one of its child 
+                       controllers.
+    Language         - A pointer to a three character ISO 639-2 language identifier.
+                       This is the language of the user interface that should be 
+                       presented to the user, and it must match one of the languages 
+                       specified in SupportedLanguages.  The number of languages 
+                       supported by a driver is up to the driver writer.
+    ActionRequired   - A pointer to the action that the calling agent is required 
+                       to perform when this function returns.  See "Related 
+                       Definitions" for a list of the actions that the calling 
+                       agent is required to perform prior to accessing 
+                       ControllerHandle again.
+
+  Returns:
+    EFI_SUCCESS           - The driver specified by This successfully set the 
+                            configuration options for the controller specified 
+                            by ControllerHandle..
+    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ActionRequired is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This does not support setting 
+                            configuration options for the controller specified by 
+                            ControllerHandle and ChildHandle.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+    EFI_DEVICE_ERROR      - A device error occurred while attempt to set the 
+                            configuration options for the controller specified 
+                            by ControllerHandle and ChildHandle.
+    EFI_OUT_RESOURCES     - There are not enough resources available to set the 
+                            configuration options for the controller specified 
+                            by ControllerHandle and ChildHandle.
+
+--*/
+{
+  EFI_STATUS            Status;
+  EFI_BLOCK_IO_PROTOCOL *BlockIo;
+  CHAR8                 *SupportedLanguage;
+
+  SupportedLanguage = This->SupportedLanguages;
+
+  Status            = EFI_UNSUPPORTED;
+  while (*SupportedLanguage != 0) {
+    if (AsciiStrnCmp (Language, SupportedLanguage, 3)) {
+      Status = EFI_SUCCESS;
+    }
+
+    SupportedLanguage += 3;
+  }
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  if (ActionRequired == NULL || ControllerHandle == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  if (ChildHandle != NULL) {
+    return EFI_UNSUPPORTED;
+  }
+
+  //
+  // Validate controller handle
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiUnixIoProtocolGuid,
+                  (void *)&BlockIo,
+                  gUnixBlockIoDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+
+  if (!EFI_ERROR (Status)) {
+    gBS->CloseProtocol (
+          ControllerHandle,
+          &gEfiUnixIoProtocolGuid,
+          gUnixBlockIoDriverBinding.DriverBindingHandle,
+          ControllerHandle
+          );
+
+    return EFI_UNSUPPORTED;
+  }
+
+  if (Status == EFI_UNSUPPORTED) {
+    return Status;
+  } else if (Status != EFI_ALREADY_STARTED) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *ActionRequired = EfiDriverConfigurationActionNone;
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverConfigurationOptionsValid (
+  IN  EFI_DRIVER_CONFIGURATION_PROTOCOL               *This,
+  IN  EFI_HANDLE                                      ControllerHandle,
+  IN  EFI_HANDLE                                      ChildHandle  OPTIONAL
+  )
+/*++
+
+  Routine Description:
+    Tests to see if a controller's current configuration options are valid.
+
+  Arguments:
+    This             - A pointer to the EFI_DRIVER_CONFIGURATION_PROTOCOL instance.
+    ControllerHandle - The handle of the controller to test if it's current 
+                       configuration options are valid.
+    ChildHandle      - The handle of the child controller to test if it's current
+                       configuration options are valid.  This is an optional 
+                       parameter that may be NULL.  It will be NULL for device 
+                       drivers.  It will also be NULL for a bus drivers that wish
+                       to test the configuration options for the bus controller.
+                       It will not be NULL for a bus driver that wishes to test 
+                       configuration options for one of its child controllers.
+
+  Returns:
+    EFI_SUCCESS           - The controller specified by ControllerHandle and 
+                            ChildHandle that is being managed by the driver 
+                            specified by This has a valid set of  configuration
+                            options.
+    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
+    EFI_UNSUPPORTED       - The driver specified by This is not currently 
+                            managing the controller specified by ControllerHandle 
+                            and ChildHandle.
+    EFI_DEVICE_ERROR      - The controller specified by ControllerHandle and 
+                            ChildHandle that is being managed by the driver 
+                            specified by This has an invalid set of configuration 
+                            options.
+
+--*/
+{
+  EFI_STATUS            Status;
+  EFI_BLOCK_IO_PROTOCOL *BlockIo;
+
+  if (ChildHandle != NULL) {
+    return EFI_UNSUPPORTED;
+  }
+
+  if (ControllerHandle == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Validate controller handle
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiUnixIoProtocolGuid,
+                  (void *)&BlockIo,
+                  gUnixBlockIoDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+
+  if (!EFI_ERROR (Status)) {
+    gBS->CloseProtocol (
+          ControllerHandle,
+          &gEfiUnixIoProtocolGuid,
+          gUnixBlockIoDriverBinding.DriverBindingHandle,
+          ControllerHandle
+          );
+
+    return EFI_UNSUPPORTED;
+  }
+
+  if (Status == EFI_UNSUPPORTED) {
+    return Status;
+  } else if (Status != EFI_ALREADY_STARTED) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverConfigurationForceDefaults (
+  IN  EFI_DRIVER_CONFIGURATION_PROTOCOL                      *This,
+  IN  EFI_HANDLE                                             ControllerHandle,
+  IN  EFI_HANDLE                                             ChildHandle  OPTIONAL,
+  IN  UINT32                                                 DefaultType,
+  OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED               *ActionRequired
+  )
+/*++
+
+  Routine Description:
+    Forces a driver to set the default configuration options for a controller.
+
+  Arguments:
+    This             - A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL instance.
+    ControllerHandle - The handle of the controller to force default configuration options on.
+    ChildHandle      - The handle of the child controller to force default configuration options on  This is an optional parameter that may be NULL.  It will be NULL for device drivers.  It will also be NULL for a bus drivers that wish to force default configuration options for the bus controller.  It will not be NULL for a bus driver that wishes to force default configuration options for one of its child controllers.
+    DefaultType      - The type of default configuration options to force on the controller specified by ControllerHandle and ChildHandle.  See Table 9-1 for legal values.  A DefaultType of 0x00000000 must be supported by this protocol.
+    ActionRequired   - A pointer to the action that the calling agent is required to perform when this function returns.  See "Related Definitions" in Section 9.1for a list of the actions that the calling agent is required to perform prior to accessing ControllerHandle again.
+
+  Returns:
+    EFI_SUCCESS           - The driver specified by This successfully forced the default configuration options on the controller specified by ControllerHandle and ChildHandle.
+    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ActionRequired is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This does not support forcing the default configuration options on the controller specified by ControllerHandle and ChildHandle.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the configuration type specified by DefaultType.
+    EFI_DEVICE_ERROR      - A device error occurred while attempt to force the default configuration options on the controller specified by  ControllerHandle and ChildHandle.
+    EFI_OUT_RESOURCES     - There are not enough resources available to force the default configuration options on the controller specified by ControllerHandle and ChildHandle.
+
+--*/
+{
+  EFI_STATUS            Status;
+  EFI_BLOCK_IO_PROTOCOL *BlockIo;
+
+  if (ChildHandle != NULL) {
+    return EFI_UNSUPPORTED;
+  }
+
+  if (ActionRequired == NULL || ControllerHandle == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Validate controller handle
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiUnixIoProtocolGuid,
+                  (void *)&BlockIo,
+                  gUnixBlockIoDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+
+  if (!EFI_ERROR (Status)) {
+    gBS->CloseProtocol (
+          ControllerHandle,
+          &gEfiUnixIoProtocolGuid,
+          gUnixBlockIoDriverBinding.DriverBindingHandle,
+          ControllerHandle
+          );
+
+    return EFI_UNSUPPORTED;
+  }
+
+  if (Status == EFI_UNSUPPORTED) {
+    return Status;
+  } else if (Status != EFI_ALREADY_STARTED) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *ActionRequired = EfiDriverConfigurationActionNone;
+  return EFI_SUCCESS;
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/BlockIo/DriverDiagnostics.c

@@ -0,0 +1,187 @@
+/*++
+
+Copyright (c) 2004 - 2005, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  DriverDiagnostics.c
+
+Abstract:
+
+--*/
+
+#include "UnixBlockIo.h"
+
+//
+// EFI Driver Diagnostics Functions
+//
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverDiagnosticsRunDiagnostics (
+  IN  EFI_DRIVER_DIAGNOSTICS_PROTOCOL               *This,
+  IN  EFI_HANDLE                                    ControllerHandle,
+  IN  EFI_HANDLE                                    ChildHandle  OPTIONAL,
+  IN  EFI_DRIVER_DIAGNOSTIC_TYPE                    DiagnosticType,
+  IN  CHAR8                                         *Language,
+  OUT EFI_GUID                                      **ErrorType,
+  OUT UINTN                                         *BufferSize,
+  OUT CHAR16                                        **Buffer
+  );
+
+//
+// EFI Driver Diagnostics Protocol
+//
+EFI_DRIVER_DIAGNOSTICS_PROTOCOL gUnixBlockIoDriverDiagnostics = {
+  UnixBlockIoDriverDiagnosticsRunDiagnostics,
+  LANGUAGESUPPORTED
+};
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverDiagnosticsRunDiagnostics (
+  IN  EFI_DRIVER_DIAGNOSTICS_PROTOCOL               *This,
+  IN  EFI_HANDLE                                    ControllerHandle,
+  IN  EFI_HANDLE                                    ChildHandle  OPTIONAL,
+  IN  EFI_DRIVER_DIAGNOSTIC_TYPE                    DiagnosticType,
+  IN  CHAR8                                         *Language,
+  OUT EFI_GUID                                      **ErrorType,
+  OUT UINTN                                         *BufferSize,
+  OUT CHAR16                                        **Buffer
+  )
+/*++
+
+  Routine Description:
+    Runs diagnostics on a controller.
+
+  Arguments:
+    This             - A pointer to the EFI_DRIVER_DIAGNOSTICS_PROTOCOL instance.
+    ControllerHandle - The handle of the controller to run diagnostics on.
+    ChildHandle      - The handle of the child controller to run diagnostics on  
+                       This is an optional parameter that may be NULL.  It will 
+                       be NULL for device drivers.  It will also be NULL for a 
+                       bus drivers that wish to run diagnostics on the bus 
+                       controller.  It will not be NULL for a bus driver that 
+                       wishes to run diagnostics on one of its child controllers.
+    DiagnosticType   - Indicates type of diagnostics to perform on the controller 
+                       specified by ControllerHandle and ChildHandle.   See 
+                       "Related Definitions" for the list of supported types.
+    Language         - A pointer to a three character ISO 639-2 language 
+                       identifier.  This is the language in which the optional 
+                       error message should be returned in Buffer, and it must 
+                       match one of the languages specified in SupportedLanguages.
+                       The number of languages supported by a driver is up to 
+                       the driver writer.  
+    ErrorType        - A GUID that defines the format of the data returned in 
+                       Buffer.  
+    BufferSize       - The size, in bytes, of the data returned in Buffer.  
+    Buffer           - A buffer that contains a Null-terminated Unicode string 
+                       plus some additional data whose format is defined by 
+                       ErrorType.  Buffer is allocated by this function with 
+                       AllocatePool(), and it is the caller's responsibility 
+                       to free it with a call to FreePool().  
+
+  Returns:
+    EFI_SUCCESS           - The controller specified by ControllerHandle and 
+                            ChildHandle passed the diagnostic.
+    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid 
+                            EFI_HANDLE.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - ErrorType is NULL.
+    EFI_INVALID_PARAMETER - BufferType is NULL.
+    EFI_INVALID_PARAMETER - Buffer is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This does not support 
+                            running diagnostics for the controller specified 
+                            by ControllerHandle and ChildHandle.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            type of diagnostic specified by DiagnosticType.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+    EFI_OUT_OF_RESOURCES  - There are not enough resources available to complete
+                            the diagnostics.
+    EFI_OUT_OF_RESOURCES  - There are not enough resources available to return
+                            the status information in ErrorType, BufferSize, 
+                            and Buffer.
+    EFI_DEVICE_ERROR      - The controller specified by ControllerHandle and 
+                            ChildHandle did not pass the diagnostic.
+
+--*/
+{
+  EFI_STATUS            Status;
+  EFI_BLOCK_IO_PROTOCOL *BlockIo;
+  CHAR8                 *SupportedLanguage;
+
+  if (Language         == NULL ||
+      ErrorType        == NULL ||
+      Buffer           == NULL ||
+      ControllerHandle == NULL ||
+      BufferSize       == NULL) {
+
+    return EFI_INVALID_PARAMETER;
+  }
+
+  SupportedLanguage = This->SupportedLanguages;
+
+  Status            = EFI_UNSUPPORTED;
+  while (*SupportedLanguage != 0) {
+    if (AsciiStrnCmp (Language, SupportedLanguage, 3)) {
+      Status = EFI_SUCCESS;
+      break;
+    }
+
+    SupportedLanguage += 3;
+  }
+
+  if (EFI_ERROR (Status)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  *ErrorType  = NULL;
+  *BufferSize = 0;
+  if (DiagnosticType != EfiDriverDiagnosticTypeStandard) {
+    *ErrorType  = &gEfiBlockIoProtocolGuid;
+    *BufferSize = 0x60;
+    gBS->AllocatePool (EfiBootServicesData, (UINTN) (*BufferSize),
+		       (void *)Buffer);
+    CopyMem (*Buffer, L"Unix Block I/O Driver Diagnostics Failed\n", *BufferSize);
+    return EFI_DEVICE_ERROR;
+  }
+
+  //
+  // Validate controller handle
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiUnixIoProtocolGuid,
+                  (void *)&BlockIo,
+                  gUnixBlockIoDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+
+  if (!EFI_ERROR (Status)) {
+    gBS->CloseProtocol (
+          ControllerHandle,
+          &gEfiUnixIoProtocolGuid,
+          gUnixBlockIoDriverBinding.DriverBindingHandle,
+          ControllerHandle
+          );
+
+    return EFI_UNSUPPORTED;
+  }
+
+  if (Status == EFI_UNSUPPORTED) {
+    return Status;
+  } else if (Status != EFI_ALREADY_STARTED) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  return EFI_SUCCESS;
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/BlockIo/UnixBlockIo.h

@@ -0,0 +1,207 @@
+/*++
+
+Copyright (c) 2004 - 2005, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixBlockIo.h
+
+Abstract:
+
+  Produce block IO abstractions for real devices on your PC using Win32 APIs.
+  The configuration of what devices to mount or emulate comes from NT 
+  environment variables. The variables must be visible to the Microsoft* 
+  Developer Studio for them to work.
+
+  * Other names and brands may be claimed as the property of others.
+
+--*/
+
+#ifndef _UNIX_BLOCK_IO_H_
+#define _UNIX_BLOCK_IO_H_
+
+#define FILENAME_BUFFER_SIZE  80
+
+//
+// Language supported for driverconfiguration protocol
+//
+#define LANGUAGESUPPORTED "eng"
+
+#define UNIX_BLOCK_IO_PRIVATE_SIGNATURE EFI_SIGNATURE_32 ('L', 'X', 'b', 'k')
+typedef struct {
+  UINTN                       Signature;
+
+  EFI_LOCK                    Lock;
+
+  char                        Filename[FILENAME_BUFFER_SIZE];
+  UINTN                       ReadMode;
+  UINTN                       Mode;
+
+  int                         fd;
+
+  UINT64                      LastBlock;
+  UINTN                       BlockSize;
+  UINT64                      NumberOfBlocks;
+
+  EFI_HANDLE                  EfiHandle;
+  EFI_BLOCK_IO_PROTOCOL       BlockIo;
+  EFI_BLOCK_IO_MEDIA          Media;
+
+  EFI_UNICODE_STRING_TABLE    *ControllerNameTable;
+
+  EFI_UNIX_THUNK_PROTOCOL   *UnixThunk;
+
+} UNIX_BLOCK_IO_PRIVATE;
+
+#define UNIX_BLOCK_IO_PRIVATE_DATA_FROM_THIS(a) \
+         CR(a, UNIX_BLOCK_IO_PRIVATE, BlockIo, UNIX_BLOCK_IO_PRIVATE_SIGNATURE)
+
+#define LIST_BUFFER_SIZE  512
+
+//
+// Block I/O Global Variables
+//
+extern EFI_DRIVER_BINDING_PROTOCOL        gUnixBlockIoDriverBinding;
+extern EFI_COMPONENT_NAME_PROTOCOL        gUnixBlockIoComponentName;
+extern EFI_DRIVER_CONFIGURATION_PROTOCOL  gUnixBlockIoDriverConfiguration;
+extern EFI_DRIVER_DIAGNOSTICS_PROTOCOL    gUnixBlockIoDriverDiagnostics;
+
+//
+// EFI Driver Binding Functions
+//
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverBindingSupported (
+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
+  IN  EFI_HANDLE                    Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL      *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                - TODO: add argument description
+  Handle              - TODO: add argument description
+  RemainingDevicePath - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverBindingStart (
+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
+  IN  EFI_HANDLE                    Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL      *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                - TODO: add argument description
+  Handle              - TODO: add argument description
+  RemainingDevicePath - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL   *This,
+  IN  EFI_HANDLE                    Handle,
+  IN  UINTN                         NumberOfChildren,
+  IN  EFI_HANDLE                    *ChildHandleBuffer
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This              - TODO: add argument description
+  Handle            - TODO: add argument description
+  NumberOfChildren  - TODO: add argument description
+  ChildHandleBuffer - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+SetFilePointer64 (
+  IN  UNIX_BLOCK_IO_PRIVATE    *Private,
+  IN  INT64                      DistanceToMove,
+  OUT UINT64                     *NewFilePointer,
+  IN  INT32                      MoveMethod
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private         - TODO: add argument description
+  DistanceToMove  - TODO: add argument description
+  NewFilePointer  - TODO: add argument description
+  MoveMethod      - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+UINTN
+Atoi (
+  CHAR16  *String
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  String  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#endif

EdkUnixPkg/Dxe/UnixThunk/Bus/BlockIo/UnixBlockIo.msa

@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>UnixBlockIo</ModuleName>
+    <ModuleType>UEFI_DRIVER</ModuleType>
+    <GuidValue>f3085888-8985-11db-9c93-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>Block Io driver</Abstract>
+    <Description>
+      Produce block IO abstractions for real devices on your PC using Unix APIs.
+      The configuration of what devices to mount or emulate comes from
+      environment variables.
+    </Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>UnixBlockIo</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverModelLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseMemoryLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>UnixBlockIo.h</Filename>
+    <Filename>UnixBlockIo.c</Filename>
+    <Filename>ComponentName.c</Filename>
+    <Filename>DriverConfiguration.c</Filename>
+    <Filename>DriverDiagnostics.c</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="TO_START">
+      <ProtocolCName>gEfiUnixIoProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="BY_START">
+      <ProtocolCName>gEfiBlockIoProtocolGuid</ProtocolCName>
+    </Protocol>
+  </Protocols>
+  <Guids>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixVirtualDisksGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="SOMETIMES_CONSUMED">
+      <GuidCName>gEfiUnixPhysicalDisksGuid</GuidCName>
+    </GuidCNames>
+  </Guids>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <DriverBinding>gUnixBlockIoDriverBinding</DriverBinding>
+      <ComponentName>gUnixBlockIoComponentName</ComponentName>
+      <DriverDiag>gUnixBlockIoDriverDiagnostics</DriverDiag>
+    </Extern>
+  </Externs>
+</ModuleSurfaceArea>

EdkUnixPkg/Dxe/UnixThunk/Bus/Console/ComponentName.c

@@ -0,0 +1,187 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  ComponentName.c
+
+Abstract:
+
+--*/
+
+#include "Console.h"
+
+//
+// EFI Component Name Functions
+//
+EFI_STATUS
+EFIAPI
+UnixConsoleComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  );
+
+EFI_STATUS
+EFIAPI
+UnixConsoleComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
+  IN  EFI_HANDLE                                      ControllerHandle,
+  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
+  IN  CHAR8                                           *Language,
+  OUT CHAR16                                          **ControllerName
+  );
+
+//
+// EFI Component Name Protocol
+//
+EFI_COMPONENT_NAME_PROTOCOL     gUnixConsoleComponentName = {
+  UnixConsoleComponentNameGetDriverName,
+  UnixConsoleComponentNameGetControllerName,
+  "eng"
+};
+
+static EFI_UNICODE_STRING_TABLE mUnixConsoleDriverNameTable[] = {
+  { "eng", L"Unix Text Console Driver" },
+  { NULL , NULL }
+};
+
+EFI_STATUS
+EFIAPI
+UnixConsoleComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the EFI Driver.
+
+  Arguments:
+    This       - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    Language   - A pointer to a three character ISO 639-2 language identifier.
+                 This is the language of the driver name that that the caller 
+                 is requesting, and it must match one of the languages specified
+                 in SupportedLanguages.  The number of languages supported by a 
+                 driver is up to the driver writer.
+    DriverName - A pointer to the Unicode string to return.  This Unicode string
+                 is the name of the driver specified by This in the language 
+                 specified by Language.
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the Driver specified by This
+                            and the language specified by Language was returned 
+                            in DriverName.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - DriverName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  return LookupUnicodeString (
+          Language,
+          gUnixConsoleComponentName.SupportedLanguages,
+          mUnixConsoleDriverNameTable,
+          DriverName
+          );
+}
+
+EFI_STATUS
+EFIAPI
+UnixConsoleComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
+  IN  EFI_HANDLE                                      ControllerHandle,
+  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
+  IN  CHAR8                                           *Language,
+  OUT CHAR16                                          **ControllerName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the controller
+    that is being managed by an EFI Driver.
+
+  Arguments:
+    This             - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    ControllerHandle - The handle of a controller that the driver specified by 
+                       This is managing.  This handle specifies the controller 
+                       whose name is to be returned.
+    ChildHandle      - The handle of the child controller to retrieve the name 
+                       of.  This is an optional parameter that may be NULL.  It 
+                       will be NULL for device drivers.  It will also be NULL 
+                       for a bus drivers that wish to retrieve the name of the 
+                       bus controller.  It will not be NULL for a bus driver 
+                       that wishes to retrieve the name of a child controller.
+    Language         - A pointer to a three character ISO 639-2 language 
+                       identifier.  This is the language of the controller name 
+                       that that the caller is requesting, and it must match one
+                       of the languages specified in SupportedLanguages.  The 
+                       number of languages supported by a driver is up to the 
+                       driver writer.
+    ControllerName   - A pointer to the Unicode string to return.  This Unicode
+                       string is the name of the controller specified by 
+                       ControllerHandle and ChildHandle in the language specified
+                       by Language from the point of view of the driver specified
+                       by This. 
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the user readable name in the 
+                            language specified by Language for the driver 
+                            specified by This was returned in DriverName.
+    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - ControllerName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This is not currently managing 
+                            the controller specified by ControllerHandle and 
+                            ChildHandle.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  EFI_STATUS                      Status;
+  EFI_SIMPLE_TEXT_OUT_PROTOCOL    *SimpleTextOut;
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  //
+  // This is a device driver, so ChildHandle must be NULL.
+  //
+  if (ChildHandle != NULL) {
+    return EFI_UNSUPPORTED;
+  }
+
+  //
+  // Get out context back
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiSimpleTextOutProtocolGuid,
+                  (void *)&SimpleTextOut,
+                  gUnixConsoleDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (EFI_ERROR (Status)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  Private = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (SimpleTextOut);
+
+  return LookupUnicodeString (
+          Language,
+          gUnixConsoleComponentName.SupportedLanguages,
+          Private->ControllerNameTable,
+          ControllerName
+          );
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/Console/Console.c

@@ -0,0 +1,310 @@
+/*++
+
+Copyright (c) 2004 - 2005, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Console.c
+
+Abstract:
+
+  Console based on Win32 APIs. 
+
+--*/
+
+#include "Console.h"
+
+EFI_STATUS
+EFIAPI
+UnixConsoleDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+  );
+
+EFI_STATUS
+EFIAPI
+UnixConsoleDriverBindingStart (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+  );
+
+EFI_STATUS
+EFIAPI
+UnixConsoleDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer
+  );
+
+EFI_DRIVER_BINDING_PROTOCOL gUnixConsoleDriverBinding = {
+  UnixConsoleDriverBindingSupported,
+  UnixConsoleDriverBindingStart,
+  UnixConsoleDriverBindingStop,
+  0x10,
+  NULL,
+  NULL
+};
+
+EFI_STATUS
+EFIAPI
+UnixConsoleDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL   *This,
+  IN  EFI_HANDLE                    Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL      *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    Handle - add argument and description to function comment
+// TODO:    RemainingDevicePath - add argument and description to function comment
+{
+  EFI_STATUS              Status;
+  EFI_UNIX_IO_PROTOCOL  *UnixIo;
+
+  //
+  // Open the IO Abstraction(s) needed to perform the supported test
+  //
+  Status = gBS->OpenProtocol (
+                  Handle,
+                  &gEfiUnixIoProtocolGuid,
+                  (void *)&UnixIo,
+                  This->DriverBindingHandle,
+                  Handle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Make sure that the Unix Thunk Protocol is valid
+  //
+  Status = EFI_UNSUPPORTED;
+  if (UnixIo->UnixThunk->Signature == EFI_UNIX_THUNK_PROTOCOL_SIGNATURE) {
+
+    //
+    // Check the GUID to see if this is a handle type the driver supports
+    //
+    if (CompareGuid (UnixIo->TypeGuid, &gEfiUnixConsoleGuid)) {
+      Status = EFI_SUCCESS;
+    }
+  }
+
+  //
+  // Close the I/O Abstraction(s) used to perform the supported test
+  //
+  gBS->CloseProtocol (
+        Handle,
+        &gEfiUnixIoProtocolGuid,
+        This->DriverBindingHandle,
+        Handle
+        );
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+UnixConsoleDriverBindingStart (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    Handle - add argument and description to function comment
+// TODO:    RemainingDevicePath - add argument and description to function comment
+{
+  EFI_STATUS                      Status;
+  EFI_UNIX_IO_PROTOCOL          *UnixIo;
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  //
+  // Grab the IO abstraction we need to get any work done
+  //
+  Status = gBS->OpenProtocol (
+                  Handle,
+                  &gEfiUnixIoProtocolGuid,
+                  (void *)&UnixIo,
+                  This->DriverBindingHandle,
+                  Handle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  Status = gBS->AllocatePool (
+                  EfiBootServicesData,
+                  sizeof (UNIX_SIMPLE_TEXT_PRIVATE_DATA),
+                  (void *)&Private
+                  );
+  if (EFI_ERROR (Status)) {
+    goto Done;
+  }
+
+  ZeroMem (Private, sizeof (UNIX_SIMPLE_TEXT_PRIVATE_DATA));
+
+  Private->Signature  = UNIX_SIMPLE_TEXT_PRIVATE_DATA_SIGNATURE;
+  Private->Handle     = Handle;
+  Private->UnixIo    = UnixIo;
+  Private->UnixThunk = UnixIo->UnixThunk;
+
+  UnixSimpleTextOutOpenWindow (Private);
+  UnixSimpleTextInAttachToWindow (Private);
+
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &Handle,
+                  &gEfiSimpleTextOutProtocolGuid,
+                  &Private->SimpleTextOut,
+                  &gEfiSimpleTextInProtocolGuid,
+                  &Private->SimpleTextIn,
+                  NULL
+                  );
+  if (!EFI_ERROR (Status)) {
+    return Status;
+  }
+
+Done:
+  gBS->CloseProtocol (
+        Handle,
+        &gEfiUnixIoProtocolGuid,
+        This->DriverBindingHandle,
+        Handle
+        );
+  if (Private != NULL) {
+
+    FreeUnicodeStringTable (Private->ControllerNameTable);
+
+#if 0
+    if (Private->NtOutHandle != NULL) {
+      Private->UnixThunk->CloseHandle (Private->NtOutHandle);
+    }
+#endif
+
+    if (Private->SimpleTextIn.WaitForKey != NULL) {
+      gBS->CloseEvent (Private->SimpleTextIn.WaitForKey);
+    }
+
+    gBS->FreePool (Private);
+  }
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+UnixConsoleDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This              - TODO: add argument description
+  Handle            - TODO: add argument description
+  NumberOfChildren  - TODO: add argument description
+  ChildHandleBuffer - TODO: add argument description
+
+Returns:
+
+  EFI_UNSUPPORTED - TODO: Add description for return value
+
+--*/
+{
+  EFI_SIMPLE_TEXT_OUT_PROTOCOL    *SimpleTextOut;
+  EFI_STATUS                      Status;
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  //
+  // Kick people off our interface???
+  //
+  Status = gBS->OpenProtocol (
+                  Handle,
+                  &gEfiSimpleTextOutProtocolGuid,
+                  (void *)&SimpleTextOut,
+                  This->DriverBindingHandle,
+                  Handle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (EFI_ERROR (Status)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  Private = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (SimpleTextOut);
+
+  ASSERT (Private->Handle == Handle);
+
+  Status = gBS->UninstallMultipleProtocolInterfaces (
+                  Handle,
+                  &gEfiSimpleTextOutProtocolGuid,
+                  &Private->SimpleTextOut,
+                  &gEfiSimpleTextInProtocolGuid,
+                  &Private->SimpleTextIn,
+                  NULL
+                  );
+  if (!EFI_ERROR (Status)) {
+
+    //
+    // Shut down our device
+    //
+    Status = gBS->CloseProtocol (
+                    Handle,
+                    &gEfiUnixIoProtocolGuid,
+                    This->DriverBindingHandle,
+                    Handle
+                    );
+
+    Status = gBS->CloseEvent (Private->SimpleTextIn.WaitForKey);
+    ASSERT_EFI_ERROR (Status);
+
+#if 0
+    Private->UnixThunk->CloseHandle (Private->NtOutHandle);
+#endif
+    //
+    // DO NOT close Private->NtInHandle. It points to StdIn and not
+    //  the Private->NtOutHandle is StdIn and should not be closed!
+    //
+    FreeUnicodeStringTable (Private->ControllerNameTable);
+
+    gBS->FreePool (Private);
+  }
+
+  return Status;
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/Console/Console.h

@@ -0,0 +1,513 @@
+/*++
+
+Copyright (c) 2004 - 2005, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Console.h
+
+Abstract:
+
+  Console based on Win32 APIs.
+
+  This file attaches a SimpleTextIn protocol to a previously open window.
+  
+  The constructor for this protocol depends on an open window. Currently
+  the SimpleTextOut protocol creates a window when it's constructor is called.
+  Thus this code must run after the constructor for the SimpleTextOut 
+  protocol
+  
+--*/
+
+#ifndef _CONSOLE_H_
+#define _CONSOLE_H_
+
+#define UNIX_SIMPLE_TEXT_PRIVATE_DATA_SIGNATURE \
+          EFI_SIGNATURE_32('U','X','s','c')
+
+typedef struct {
+  UINT64                        Signature;
+
+  EFI_HANDLE                    Handle;
+
+  EFI_SIMPLE_TEXT_OUT_PROTOCOL  SimpleTextOut;
+  EFI_SIMPLE_TEXT_OUTPUT_MODE   SimpleTextOutMode;
+
+  EFI_UNIX_IO_PROTOCOL        *UnixIo;
+  EFI_UNIX_THUNK_PROTOCOL     *UnixThunk;
+
+  //
+  // SimpleTextOut Private Data including Win32 types.
+  //
+  //  HANDLE                        NtOutHandle;
+  //  HANDLE                        NtInHandle;
+
+  //COORD                         MaxScreenSize;
+  //COORD                         Position;
+  //WORD                          Attribute;
+  BOOLEAN                       CursorEnable;
+
+  EFI_SIMPLE_TEXT_IN_PROTOCOL   SimpleTextIn;
+
+  EFI_UNICODE_STRING_TABLE      *ControllerNameTable;
+
+} UNIX_SIMPLE_TEXT_PRIVATE_DATA;
+
+#define UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS(a) \
+         CR(a, UNIX_SIMPLE_TEXT_PRIVATE_DATA, SimpleTextOut, UNIX_SIMPLE_TEXT_PRIVATE_DATA_SIGNATURE)
+
+#define UNIX_SIMPLE_TEXT_IN_PRIVATE_DATA_FROM_THIS(a) \
+         CR(a, UNIX_SIMPLE_TEXT_PRIVATE_DATA, SimpleTextIn, UNIX_SIMPLE_TEXT_PRIVATE_DATA_SIGNATURE)
+
+//
+// Console Globale Variables
+//
+extern EFI_DRIVER_BINDING_PROTOCOL  gUnixConsoleDriverBinding;
+extern EFI_COMPONENT_NAME_PROTOCOL  gUnixConsoleComponentName;
+
+typedef struct {
+  UINTN ColumnsX;
+  UINTN RowsY;
+} UNIX_SIMPLE_TEXT_OUT_MODE;
+
+#if 0
+//
+// Simple Text Out protocol member functions
+//
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutReset (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL     *This,
+  IN BOOLEAN                          ExtendedVerification
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                  - TODO: add argument description
+  ExtendedVerification  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutOutputString (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This,
+  IN CHAR16                         *String
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This    - TODO: add argument description
+  String  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutTestString (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This,
+  IN CHAR16                         *String
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This    - TODO: add argument description
+  String  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutQueryMode (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This,
+  IN UINTN                          ModeNumber,
+  OUT UINTN                         *Columns,
+  OUT UINTN                         *Rows
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This        - TODO: add argument description
+  ModeNumber  - TODO: add argument description
+  Columns     - TODO: add argument description
+  Rows        - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutSetMode (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This,
+  IN UINTN                          ModeNumber
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This        - TODO: add argument description
+  ModeNumber  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutSetAttribute (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This,
+  IN UINTN                          Attribute
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This      - TODO: add argument description
+  Attribute - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutClearScreen (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutSetCursorPosition (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This,
+  IN UINTN                          Column,
+  IN UINTN                          Row
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This    - TODO: add argument description
+  Column  - TODO: add argument description
+  Row     - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutEnableCursor (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This,
+  IN BOOLEAN                        Enable
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This    - TODO: add argument description
+  Enable  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#endif
+//
+// Simple Text Out constructor and destructor.
+//
+EFI_STATUS
+UnixSimpleTextOutOpenWindow (
+  IN OUT  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+UnixSimpleTextOutCloseWindow (
+  IN OUT  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Console
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Console - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#if 0
+//
+// Simple Text In protocol member functions.
+//
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextInReset (
+  IN EFI_SIMPLE_TEXT_IN_PROTOCOL          *This,
+  IN BOOLEAN                              ExtendedVerification
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                  - TODO: add argument description
+  ExtendedVerification  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextInReadKeyStroke (
+  IN EFI_SIMPLE_TEXT_IN_PROTOCOL          *This,
+  OUT EFI_INPUT_KEY                       *Key
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This  - TODO: add argument description
+  Key   - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+STATIC
+VOID
+EFIAPI
+UnixSimpleTextInWaitForKey (
+  IN EFI_EVENT          Event,
+  IN VOID               *Context
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Event   - TODO: add argument description
+  Context - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#endif
+//
+// Simple Text In constructor
+//
+EFI_STATUS
+UnixSimpleTextInAttachToWindow (
+  IN  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+//
+// Main Entry Point
+//
+EFI_STATUS
+EFIAPI
+InitializeUnixConsole (
+  IN EFI_HANDLE           ImageHandle,
+  IN EFI_SYSTEM_TABLE     *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  ImageHandle - TODO: add argument description
+  SystemTable - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+AppendDevicePathInstanceToVar (
+  IN  CHAR16                    *VariableName,
+  IN  EFI_DEVICE_PATH_PROTOCOL  *DevicePathInstance
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  VariableName        - TODO: add argument description
+  DevicePathInstance  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#endif

EdkUnixPkg/Dxe/UnixThunk/Bus/Console/ConsoleIn.c

@@ -0,0 +1,246 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  ConsoleIn.c
+
+Abstract:
+
+  Console based on Win32 APIs. 
+
+  This file attaches a SimpleTextIn protocol to a previously open window.
+  
+  The constructor for this protocol depends on an open window. Currently
+  the SimpleTextOut protocol creates a window when it's constructor is called.
+  Thus this code must run after the constructor for the SimpleTextOut 
+  protocol
+  
+--*/
+
+#include "Console.h"
+#include <sys/poll.h>
+
+//
+// Private worker functions
+//
+STATIC
+EFI_STATUS
+UnixSimpleTextInCheckKey (
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA  *Private
+  );
+
+EFI_STATUS
+EFIAPI
+UnixSimpleTextInReset (
+  IN EFI_SIMPLE_TEXT_IN_PROTOCOL          *This,
+  IN BOOLEAN                              ExtendedVerification
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                  - TODO: add argument description
+  ExtendedVerification  - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  Private = UNIX_SIMPLE_TEXT_IN_PRIVATE_DATA_FROM_THIS (This);
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+UnixConvertInputRecordToEfiKey (
+  IN  char c,
+  OUT EFI_INPUT_KEY   *Key
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  InputRecord - TODO: add argument description
+  Key         - TODO: add argument description
+
+Returns:
+
+  EFI_NOT_READY - TODO: Add description for return value
+  EFI_NOT_READY - TODO: Add description for return value
+  EFI_NOT_READY - TODO: Add description for return value
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  Key->ScanCode     = 0;
+  if (c == '\n')
+    c = '\r';
+  Key->UnicodeChar  = c;
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextInReadKeyStroke (
+  IN EFI_SIMPLE_TEXT_IN_PROTOCOL          *This,
+  OUT EFI_INPUT_KEY                       *Key
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This  - TODO: add argument description
+  Key   - TODO: add argument description
+
+Returns:
+
+  EFI_DEVICE_ERROR - TODO: Add description for return value
+  EFI_NOT_READY - TODO: Add description for return value
+
+--*/
+{
+  EFI_STATUS                      Status;
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+  char c;
+
+  Private = UNIX_SIMPLE_TEXT_IN_PRIVATE_DATA_FROM_THIS (This);
+
+  Status  = UnixSimpleTextInCheckKey (Private);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  if (Private->UnixThunk->Read (0, &c, 1) != 1)
+    return EFI_NOT_READY;
+  Status = UnixConvertInputRecordToEfiKey (c, Key);
+
+  return Status;
+}
+
+STATIC
+VOID
+EFIAPI
+UnixSimpleTextInWaitForKey (
+  IN EFI_EVENT          Event,
+  IN VOID               *Context
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Event   - TODO: add argument description
+  Context - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+  EFI_STATUS                      Status;
+
+  Private = (UNIX_SIMPLE_TEXT_PRIVATE_DATA *) Context;
+  Status  = UnixSimpleTextInCheckKey (Private);
+  if (!EFI_ERROR (Status)) {
+    gBS->SignalEvent (Event);
+  }
+}
+
+STATIC
+EFI_STATUS
+UnixSimpleTextInCheckKey (
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA   *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  struct pollfd pfd;
+
+  pfd.fd = 0;
+  pfd.events = POLLIN;
+  if (Private->UnixThunk->Poll (&pfd, 1, 0) <= 0) {
+    return EFI_NOT_READY;
+  }
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+UnixSimpleTextInAttachToWindow (
+  IN  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  EFI_STATUS  Status;
+
+  Private->SimpleTextIn.Reset         = UnixSimpleTextInReset;
+  Private->SimpleTextIn.ReadKeyStroke = UnixSimpleTextInReadKeyStroke;
+
+  Status = gBS->CreateEvent (
+                  EFI_EVENT_NOTIFY_WAIT,
+                  EFI_TPL_NOTIFY,
+                  UnixSimpleTextInWaitForKey,
+                  Private,
+                  &Private->SimpleTextIn.WaitForKey
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  return Status;
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/Console/ConsoleOut.c

@@ -0,0 +1,635 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  ConsoleOut.c
+
+Abstract:
+
+  Console based on Win32 APIs. 
+
+  This file creates an Win32 window and attaches a SimpleTextOut protocol.
+
+--*/
+
+#include "Console.h"
+//
+// Private worker functions.
+//
+
+#if 0
+STATIC
+VOID
+UnixSimpleTextOutScrollScreen (
+  IN OUT  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Console
+  );
+
+#endif
+STATIC
+VOID
+UnixSimpleTextOutPutChar (
+  IN OUT  UNIX_SIMPLE_TEXT_PRIVATE_DATA     *Console,
+  IN      CHAR16                              Char
+  );
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutSetAttribute (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This,
+  IN UINTN                          Attribute
+  );
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutSetMode (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL           *This,
+  IN UINTN                                  ModeNumber
+  );
+
+//
+// Modeule Global for Simple Text Out Mode.
+//
+#define MAX_SIMPLE_TEXT_OUT_MODE  \
+        (sizeof(mUnixSimpleTextOutSupportedModes)/sizeof(UNIX_SIMPLE_TEXT_OUT_MODE))
+
+STATIC UNIX_SIMPLE_TEXT_OUT_MODE  mUnixSimpleTextOutSupportedModes[] = {
+  { 80, 25 },         
+#if 0
+  { 80, 50 },         
+  { 80, 43 },         
+  { 100, 100 },       
+  { 100, 999 }         
+#endif
+};
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutReset (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL         *This,
+  IN BOOLEAN                              ExtendedVerification
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                  - TODO: add argument description
+  ExtendedVerification  - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  Private = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (This);
+
+  UnixSimpleTextOutSetAttribute (This, EFI_TEXT_ATTR (This->Mode->Attribute & 0x0F, EFI_BACKGROUND_BLACK));
+
+  UnixSimpleTextOutSetMode (This, 0);
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutOutputString (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL           *This,
+  IN CHAR16                                 *String
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This    - TODO: add argument description
+  String  - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+  CHAR16                          *Str;
+
+  Private = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (This);
+
+  for (Str = String; *Str != '\0'; Str++) {
+    switch (*Str) {
+#if 0
+    case '\n':
+      if (Private->Position.Y == (Private->MaxScreenSize.Y - 1)) {
+        UnixSimpleTextOutScrollScreen (Private);
+      }
+
+      if (Private->Position.Y < (Private->MaxScreenSize.Y - 1)) {
+        Private->Position.Y++;
+        This->Mode->CursorRow++;
+      }
+      break;
+
+    case '\r':
+      Private->Position.X      = 0;
+      This->Mode->CursorColumn  = 0;
+      break;
+
+    case '\b':
+      if (Private->Position.X > 0) {
+        Private->Position.X--;
+        This->Mode->CursorColumn--;
+      }
+      break;
+
+#endif
+    default:
+      UnixSimpleTextOutPutChar (Private, *Str);
+    }
+  }
+
+  return EFI_SUCCESS;
+}
+
+STATIC
+VOID
+UnixSimpleTextOutPutChar (
+  IN OUT  UNIX_SIMPLE_TEXT_PRIVATE_DATA   *Console,
+  IN      CHAR16                            Char
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Console - TODO: add argument description
+  Char    - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  char c = Char;
+  Console->UnixThunk->Write (1, &c, 1);
+}
+
+#if 0
+STATIC
+VOID
+UnixSimpleTextOutScrollScreen (
+  IN OUT  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Console
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Console - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+}
+#endif
+
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutTestString (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL           *This,
+  IN CHAR16                                 *String
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This    - TODO: add argument description
+  String  - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  Private = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (This);
+
+  //
+  // BugBug: The correct answer would be a function of what code pages
+  //         are currently loaded? For now we will just return success.
+  //
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutQueryMode (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL           *This,
+  IN UINTN                                  ModeNumber,
+  OUT UINTN                                 *Columns,
+  OUT UINTN                                 *Rows
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This        - TODO: add argument description
+  ModeNumber  - TODO: add argument description
+  Columns     - TODO: add argument description
+  Rows        - TODO: add argument description
+
+Returns:
+
+  EFI_INVALID_PARAMETER - TODO: Add description for return value
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  Private = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (This);
+
+  if (ModeNumber > MAX_SIMPLE_TEXT_OUT_MODE) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *Columns  = mUnixSimpleTextOutSupportedModes[ModeNumber].ColumnsX;
+  *Rows     = mUnixSimpleTextOutSupportedModes[ModeNumber].RowsY;
+
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutSetMode (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL           *This,
+  IN UINTN                                  ModeNumber
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This        - TODO: add argument description
+  ModeNumber  - TODO: add argument description
+
+Returns:
+
+  EFI_INVALID_PARAMETER - TODO: Add description for return value
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  Private = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (This);
+
+  if (ModeNumber > MAX_SIMPLE_TEXT_OUT_MODE) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+
+  This->Mode->Mode = (INT32) ModeNumber;
+
+  This->EnableCursor (This, TRUE);
+  This->ClearScreen (This);
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutSetAttribute (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This,
+  IN UINTN                          Attribute
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This      - TODO: add argument description
+  Attribute - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  Private               = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (This);
+
+#if 0
+  Private->Attribute    = (WORD) Attribute;
+#endif
+  This->Mode->Attribute = (INT32) Attribute;
+
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutClearScreen (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This  - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+  //  DWORD                           ConsoleWindow;
+
+  Private = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (This);
+
+  This->SetCursorPosition (This, 0, 0);
+  Private->UnixThunk->Write (1, "\e[2J", 4);
+
+
+#if 0
+  Private->UnixThunk->FillConsoleOutputCharacter (
+                        Private->NtOutHandle,
+                        ' ',
+                        Private->MaxScreenSize.X * Private->MaxScreenSize.Y,
+                        Private->Possition,
+                        &ConsoleWindow
+                        );
+  Private->UnixThunk->FillConsoleOutputAttribute (
+                        Private->NtOutHandle,
+                        Private->Attribute,
+                        Private->MaxScreenSize.X * Private->MaxScreenSize.Y,
+                        Private->Possition,
+                        &ConsoleWindow
+                        );
+#endif
+
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutSetCursorPosition (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL           *This,
+  IN UINTN                                  Column,
+  IN UINTN                                  Row
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This    - TODO: add argument description
+  Column  - TODO: add argument description
+  Row     - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  char buf[12];
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  Private                   = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (This);
+
+#if 0
+  Private->Position.X      = (WORD) Column;
+#endif
+  This->Mode->CursorColumn  = (INT32) Column;
+
+#if 0
+  Private->Position.Y      = (WORD) Row;
+#endif
+  This->Mode->CursorRow     = (INT32) Row;
+#if 0
+  Private->UnixThunk->SetConsoleCursorPosition (Private->NtOutHandle, Private->Possition);
+#endif
+
+  buf[0] = '\e';
+  buf[1] = '[';
+  buf[2] = '0' + ((Row / 100) % 10);
+  buf[3] = '0' + ((Row / 10) % 10);
+  buf[4] = '0' + ((Row / 1) % 10);
+  buf[5] = ';';
+  buf[6] = '0' + ((Column / 100) % 10);
+  buf[7] = '0' + ((Column / 10) % 10);
+  buf[8] = '0' + ((Column / 1) % 10);
+  buf[9] = 'H';
+  Private->UnixThunk->Write (1, buf, 10);
+
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextOutEnableCursor (
+  IN EFI_SIMPLE_TEXT_OUT_PROTOCOL   *This,
+  IN BOOLEAN                        Enable
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This    - TODO: add argument description
+  Enable  - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+#if 0
+  CONSOLE_CURSOR_INFO             Info;
+#endif
+
+  Private                   = UNIX_SIMPLE_TEXT_OUT_PRIVATE_DATA_FROM_THIS (This);
+  Private->CursorEnable     = Enable;
+  This->Mode->CursorVisible = Enable;
+
+#if 0
+  Private->UnixThunk->GetConsoleCursorInfo (Private->NtOutHandle, &Info);
+  Info.bVisible = Enable;
+  Private->UnixThunk->SetConsoleCursorInfo (Private->NtOutHandle, &Info);
+#endif
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+UnixSimpleTextOutOpenWindow (
+  IN OUT  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  EFI_SIMPLE_TEXT_OUT_PROTOCOL  *SimpleTextOut;
+  CHAR16                        *WindowName;
+
+  //WindowName          = Private->UnixIo->EnvString;
+#if 0
+  Private->Attribute  = FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_INTENSITY;
+  if (*WindowName == '?') {
+    Private->Attribute  = BACKGROUND_RED | FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_GREEN;
+    WindowName          = L"EFI Emulator Error Console";
+  }
+#endif
+    WindowName          = L"EFI Emulator Error Console";
+
+  AddUnicodeString (
+    "eng",
+    gUnixConsoleComponentName.SupportedLanguages,
+    &Private->ControllerNameTable,
+    WindowName
+    );
+
+  //
+  // Fill in protocol member functions
+  //
+  SimpleTextOut                     = &Private->SimpleTextOut;
+  SimpleTextOut->Reset              = UnixSimpleTextOutReset;
+  SimpleTextOut->OutputString       = UnixSimpleTextOutOutputString;
+  SimpleTextOut->TestString         = UnixSimpleTextOutTestString;
+  SimpleTextOut->QueryMode          = UnixSimpleTextOutQueryMode;
+  SimpleTextOut->SetMode            = UnixSimpleTextOutSetMode;
+  SimpleTextOut->SetAttribute       = UnixSimpleTextOutSetAttribute;
+  SimpleTextOut->ClearScreen        = UnixSimpleTextOutClearScreen;
+  SimpleTextOut->SetCursorPosition  = UnixSimpleTextOutSetCursorPosition;
+  SimpleTextOut->EnableCursor       = UnixSimpleTextOutEnableCursor;
+
+  //
+  // Initialize SimpleTextOut protocol mode structure
+  //
+  SimpleTextOut->Mode             = &Private->SimpleTextOutMode;
+  SimpleTextOut->Mode->MaxMode    = MAX_SIMPLE_TEXT_OUT_MODE;
+  SimpleTextOut->Mode->Attribute  = 0; //FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_INTENSITY;
+
+#if 0
+  //
+  // Open the window an initialize it!
+  //
+  Private->NtOutHandle = Private->UnixThunk->CreateConsoleScreenBuffer (
+                                                GENERIC_WRITE | GENERIC_READ,
+                                                FILE_SHARE_WRITE | FILE_SHARE_READ,
+                                                NULL,
+                                                CONSOLE_TEXTMODE_BUFFER,
+                                                NULL
+                                                );
+  Private->UnixThunk->SetConsoleTitle (WindowName);
+#endif
+
+  return SimpleTextOut->SetMode (SimpleTextOut, 0);
+}
+
+EFI_STATUS
+UnixSimpleTextOutCloseWindow (
+  IN OUT  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Console
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Console - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+#if 0
+  Console->UnixThunk->CloseHandle (Console->NtOutHandle);
+#endif
+  return EFI_SUCCESS;
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/Console/UnixConsole.msa

@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>UnixConsole</ModuleName>
+    <ModuleType>UEFI_DRIVER</ModuleType>
+    <GuidValue>f314a8cc-8985-11db-9f69-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>Console Dxe driver</Abstract>
+    <Description>Simulate console with Unix API</Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>UnixConsole</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverModelLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseMemoryLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>Console.h</Filename>
+    <Filename>Console.c</Filename>
+    <Filename>ConsoleIn.c</Filename>
+    <Filename>ConsoleOut.c</Filename>
+    <Filename>ComponentName.c</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="TO_START">
+      <ProtocolCName>gEfiUnixIoProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="BY_START">
+      <ProtocolCName>gEfiSimpleTextOutProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="BY_START">
+      <ProtocolCName>gEfiSimpleTextInProtocolGuid</ProtocolCName>
+    </Protocol>
+  </Protocols>
+  <Guids>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixConsoleGuid</GuidCName>
+    </GuidCNames>
+  </Guids>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <DriverBinding>gUnixConsoleDriverBinding</DriverBinding>
+      <ComponentName>gUnixConsoleComponentName</ComponentName>
+    </Extern>
+  </Externs>
+</ModuleSurfaceArea>

EdkUnixPkg/Dxe/UnixThunk/Bus/SimpleFileSystem/ComponentName.c

@@ -0,0 +1,193 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  ComponentName.c
+
+Abstract:
+
+--*/
+
+#include "UnixSimpleFileSystem.h"
+
+//
+// EFI Component Name Functions
+//
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  );
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL                                        *This,
+  IN  EFI_HANDLE                                                         ControllerHandle,
+  IN  EFI_HANDLE                                                         ChildHandle        OPTIONAL,
+  IN  CHAR8                                                              *Language,
+  OUT CHAR16                                                             **ControllerName
+  );
+
+//
+// EFI Component Name Protocol
+//
+EFI_COMPONENT_NAME_PROTOCOL     gUnixSimpleFileSystemComponentName = {
+  UnixSimpleFileSystemComponentNameGetDriverName,
+  UnixSimpleFileSystemComponentNameGetControllerName,
+  "eng"
+};
+
+static EFI_UNICODE_STRING_TABLE mUnixSimpleFileSystemDriverNameTable[] = {
+  {
+    "eng",
+    L"Unix Simple File System Driver"
+  },
+  {
+    NULL,
+    NULL
+  }
+};
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the EFI Driver.
+
+  Arguments:
+    This       - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    Language   - A pointer to a three character ISO 639-2 language identifier.
+                 This is the language of the driver name that that the caller 
+                 is requesting, and it must match one of the languages specified
+                 in SupportedLanguages.  The number of languages supported by a 
+                 driver is up to the driver writer.
+    DriverName - A pointer to the Unicode string to return.  This Unicode string
+                 is the name of the driver specified by This in the language 
+                 specified by Language.
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the Driver specified by This
+                            and the language specified by Language was returned 
+                            in DriverName.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - DriverName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  return LookupUnicodeString (
+          Language,
+          gUnixSimpleFileSystemComponentName.SupportedLanguages,
+          mUnixSimpleFileSystemDriverNameTable,
+          DriverName
+          );
+}
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL                                        *This,
+  IN  EFI_HANDLE                                                         ControllerHandle,
+  IN  EFI_HANDLE                                                         ChildHandle        OPTIONAL,
+  IN  CHAR8                                                              *Language,
+  OUT CHAR16                                                             **ControllerName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the controller
+    that is being managed by an EFI Driver.
+
+  Arguments:
+    This             - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    ControllerHandle - The handle of a controller that the driver specified by 
+                       This is managing.  This handle specifies the controller 
+                       whose name is to be returned.
+    ChildHandle      - The handle of the child controller to retrieve the name 
+                       of.  This is an optional parameter that may be NULL.  It 
+                       will be NULL for device drivers.  It will also be NULL 
+                       for a bus drivers that wish to retrieve the name of the 
+                       bus controller.  It will not be NULL for a bus driver 
+                       that wishes to retrieve the name of a child controller.
+    Language         - A pointer to a three character ISO 639-2 language 
+                       identifier.  This is the language of the controller name 
+                       that that the caller is requesting, and it must match one
+                       of the languages specified in SupportedLanguages.  The 
+                       number of languages supported by a driver is up to the 
+                       driver writer.
+    ControllerName   - A pointer to the Unicode string to return.  This Unicode
+                       string is the name of the controller specified by 
+                       ControllerHandle and ChildHandle in the language specified
+                       by Language from the point of view of the driver specified
+                       by This. 
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the user readable name in the 
+                            language specified by Language for the driver 
+                            specified by This was returned in DriverName.
+    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - ControllerName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This is not currently managing 
+                            the controller specified by ControllerHandle and 
+                            ChildHandle.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  EFI_STATUS                        Status;
+  EFI_SIMPLE_FILE_SYSTEM_PROTOCOL   *SimpleFileSystem;
+  UNIX_SIMPLE_FILE_SYSTEM_PRIVATE *Private;
+
+  //
+  // This is a device driver, so ChildHandle must be NULL.
+  //
+  if (ChildHandle != NULL) {
+    return EFI_UNSUPPORTED;
+  }
+
+  //
+  // Get our context back
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiSimpleFileSystemProtocolGuid,
+                  &SimpleFileSystem,
+                  gUnixSimpleFileSystemDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (EFI_ERROR (Status)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  Private = UNIX_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (SimpleFileSystem);
+
+  return LookupUnicodeString (
+          Language,
+          gUnixSimpleFileSystemComponentName.SupportedLanguages,
+          Private->ControllerNameTable,
+          ControllerName
+          );
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/SimpleFileSystem/UnixSimpleFileSystem.h

@@ -0,0 +1,582 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixSimpleFileSystem.h
+
+Abstract:
+
+  Produce Simple File System abstractions for a directory on your PC using Unix APIs.
+  The configuration of what devices to mount or emulate comes from  
+  environment variables.
+
+--*/
+
+#ifndef _UNIX_SIMPLE_FILE_SYSTEM_H_
+#define _UNIX_SIMPLE_FILE_SYSTEM_H_
+
+
+
+#define UNIX_SIMPLE_FILE_SYSTEM_PRIVATE_SIGNATURE EFI_SIGNATURE_32 ('L', 'X', 'f', 's')
+
+typedef struct {
+  UINTN                           Signature;
+  EFI_UNIX_THUNK_PROTOCOL        *UnixThunk;
+  EFI_SIMPLE_FILE_SYSTEM_PROTOCOL SimpleFileSystem;
+  CHAR8                           *FilePath;
+  CHAR16                          *VolumeLabel;
+  EFI_UNICODE_STRING_TABLE        *ControllerNameTable;
+} UNIX_SIMPLE_FILE_SYSTEM_PRIVATE;
+
+#define UNIX_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS(a) \
+  CR (a, \
+      UNIX_SIMPLE_FILE_SYSTEM_PRIVATE, \
+      SimpleFileSystem, \
+      UNIX_SIMPLE_FILE_SYSTEM_PRIVATE_SIGNATURE \
+      )
+
+#define UNIX_EFI_FILE_PRIVATE_SIGNATURE EFI_SIGNATURE_32 ('l', 'o', 'f', 's')
+
+typedef struct {
+  UINTN                           Signature;
+  EFI_UNIX_THUNK_PROTOCOL        *UnixThunk;
+  EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *SimpleFileSystem;
+  EFI_FILE                        EfiFile;
+  INTN                            fd;
+  DIR                             *Dir;
+  BOOLEAN                         IsRootDirectory;
+  BOOLEAN                         IsDirectoryPath;
+  BOOLEAN                         IsOpenedByRead;
+  char                            *FileName;
+  struct dirent                   *Dirent;
+} UNIX_EFI_FILE_PRIVATE;
+
+#define UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS(a) \
+  CR (a, \
+      UNIX_EFI_FILE_PRIVATE, \
+      EfiFile, \
+      UNIX_EFI_FILE_PRIVATE_SIGNATURE \
+      )
+
+//
+// Global Protocol Variables
+//
+extern EFI_DRIVER_BINDING_PROTOCOL  gUnixSimpleFileSystemDriverBinding;
+extern EFI_COMPONENT_NAME_PROTOCOL  gUnixSimpleFileSystemComponentName;
+
+//
+// Driver Binding protocol member functions
+//
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath  OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+  Check to see if the driver supports a given controller.
+
+Arguments:
+
+  This                - A pointer to an instance of the EFI_DRIVER_BINDING_PROTOCOL.
+
+  ControllerHandle    - EFI handle of the controller to test.
+
+  RemainingDevicePath - Pointer to remaining portion of a device path.
+
+Returns:
+
+  EFI_SUCCESS         - The device specified by ControllerHandle and RemainingDevicePath is supported by the driver
+                        specified by This.
+
+  EFI_ALREADY_STARTED - The device specified by ControllerHandle and RemainingDevicePath is already being managed by
+                        the driver specified by This.
+
+  EFI_ACCESS_DENIED   - The device specified by ControllerHandle and RemainingDevicePath is already being managed by
+                        a different driver or an application that requires exclusive access.
+
+  EFI_UNSUPPORTED     - The device specified by ControllerHandle and RemainingDevicePath is not supported by the
+                        driver specified by This.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemDriverBindingStart (
+  IN  EFI_DRIVER_BINDING_PROTOCOL   *This,
+  IN  EFI_HANDLE                    ControllerHandle,
+  IN  EFI_DEVICE_PATH_PROTOCOL      *RemainingDevicePath  OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+  Starts a device controller or a bus controller.
+
+Arguments:
+
+  This                - A pointer to an instance of the EFI_DRIVER_BINDING_PROTOCOL.
+
+  ControllerHandle    - EFI handle of the controller to start.
+
+  RemainingDevicePath - Pointer to remaining portion of a device path.
+
+Returns:
+
+  EFI_SUCCESS           - The device or bus controller has been started.
+
+  EFI_DEVICE_ERROR      - The device could not be started due to a device failure.
+
+  EFI_OUT_OF_RESOURCES  - The request could not be completed due to lack of resources.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer  OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This              - A pointer to an instance of the EFI_DRIVER_BINDING_PROTOCOL.
+
+  ControllerHandle  - A handle to the device to be stopped.
+
+  NumberOfChildren  - The number of child device handles in ChildHandleBuffer.
+
+  ChildHandleBuffer - An array of child device handles to be freed.
+
+Returns:
+
+  EFI_SUCCESS       - The device has been stopped.
+
+  EFI_DEVICE_ERROR  - The device could not be stopped due to a device failure.
+
+--*/
+;
+
+//
+// Simple File System protocol member functions
+//
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemOpenVolume (
+  IN  EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This,
+  OUT EFI_FILE                        **Root
+  )
+/*++
+
+Routine Description:
+
+  Open the root directory on a volume.
+
+Arguments:
+
+  This  - A pointer to the volume to open.
+
+  Root  - A pointer to storage for the returned opened file handle of the root directory.
+
+Returns:
+
+  EFI_SUCCESS           - The volume was opened.
+
+  EFI_UNSUPPORTED       - The volume does not support the requested file system type.
+
+  EFI_NO_MEDIA          - The device has no media.
+
+  EFI_DEVICE_ERROR      - The device reported an error.
+
+  EFI_VOLUME_CORRUPTED  - The file system structures are corrupted.
+
+  EFI_ACCESS_DENIED     - The service denied access to the file.
+
+  EFI_OUT_OF_RESOURCES  - The file volume could not be opened due to lack of resources.
+
+  EFI_MEDIA_CHANGED     - The device has new media or the media is no longer supported.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemOpen (
+  IN  EFI_FILE  *This,
+  OUT EFI_FILE  **NewHandle,
+  IN  CHAR16    *FileName,
+  IN  UINT64    OpenMode,
+  IN  UINT64    Attributes
+  )
+/*++
+
+Routine Description:
+
+  Open a file relative to the source file location.
+
+Arguments:
+
+  This        - A pointer to the source file location.
+
+  NewHandle   - Pointer to storage for the new file handle.
+
+  FileName    - Pointer to the file name to be opened.
+
+  OpenMode    - File open mode information.
+
+  Attributes  - File creation attributes.
+
+Returns:
+
+  EFI_SUCCESS           - The file was opened.
+
+  EFI_NOT_FOUND         - The file could not be found in the volume.
+
+  EFI_NO_MEDIA          - The device has no media.
+
+  EFI_MEDIA_CHANGED     - The device has new media or the media is no longer supported.
+
+  EFI_DEVICE_ERROR      - The device reported an error.
+
+  EFI_VOLUME_CORRUPTED  - The file system structures are corrupted.
+
+  EFI_WRITE_PROTECTED   - The volume or file is write protected.
+
+  EFI_ACCESS_DENIED     - The service denied access to the file.
+
+  EFI_OUT_OF_RESOURCES  - Not enough resources were available to open the file.
+
+  EFI_VOLUME_FULL       - There is not enough space left to create the new file.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemClose (
+  IN EFI_FILE  *This
+  )
+/*++
+
+Routine Description:
+
+  Close the specified file handle.
+
+Arguments:
+
+  This  - Pointer to a returned opened file handle.
+
+Returns:
+
+  EFI_SUCCESS - The file handle has been closed.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemDelete (
+  IN EFI_FILE  *This
+  )
+/*++
+
+Routine Description:
+
+  Close and delete a file.
+
+Arguments:
+
+  This  - Pointer to a returned opened file handle.
+
+Returns:
+
+  EFI_SUCCESS             - The file handle was closed and deleted.
+
+  EFI_WARN_DELETE_FAILURE - The handle was closed but could not be deleted.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemRead (
+  IN     EFI_FILE  *This,
+  IN OUT UINTN     *BufferSize,
+  OUT    VOID      *Buffer
+  )
+/*++
+
+Routine Description:
+
+  Read data from a file.
+
+Arguments:
+
+  This        - Pointer to a returned open file handle.
+
+  BufferSize  - On input, the size of the Buffer.  On output, the number of bytes stored in the Buffer.
+
+  Buffer      - Pointer to the first byte of the read Buffer.
+
+Returns:
+
+  EFI_SUCCESS           - The data was read.
+
+  EFI_NO_MEDIA          - The device has no media.
+
+  EFI_DEVICE_ERROR      - The device reported an error.
+
+  EFI_VOLUME_CORRUPTED  - The file system structures are corrupted.
+
+  EFI_BUFFER_TOO_SMALL  - The supplied buffer size was too small to store the current directory entry.
+                          *BufferSize has been updated with the size needed to complete the request.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemWrite (
+  IN     EFI_FILE  *This,
+  IN OUT UINTN     *BufferSize,
+  IN     VOID      *Buffer
+  )
+/*++
+
+Routine Description:
+
+  Write data to a file.
+
+Arguments:
+
+  This        - Pointer to an opened file handle.
+
+  BufferSize  - On input, the number of bytes in the Buffer to write to the file.  On output, the number of bytes
+                of data written to the file.
+
+  Buffer      - Pointer to the first by of data in the buffer to write to the file.
+
+Returns:
+
+  EFI_SUCCESS           - The data was written to the file.
+
+  EFI_UNSUPPORTED       - Writes to an open directory are not supported.
+
+  EFI_NO_MEDIA          - The device has no media.
+
+  EFI_DEVICE_ERROR      - The device reported an error.
+
+  EFI_VOLUME_CORRUPTED  - The file system structures are corrupt.
+
+  EFI_WRITE_PROTECTED   - The file, directory, volume, or device is write protected.
+
+  EFI_ACCESS_DENIED     - The file was opened read-only.
+
+  EFI_VOLUME_FULL       - The volume is full.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemSetPosition (
+  IN EFI_FILE  *This,
+  IN UINT64    Position
+  )
+/*++
+
+Routine Description:
+
+  Set a file's current position.
+
+Arguments:
+
+  This      - Pointer to an opened file handle.
+
+  Position  - The byte position from the start of the file to set.
+
+Returns:
+
+  EFI_SUCCESS     - The file position has been changed.
+
+  EFI_UNSUPPORTED - The seek request for non-zero is not supported for directories.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemGetPosition (
+  IN  EFI_FILE  *This,
+  OUT UINT64    *Position
+  )
+/*++
+
+Routine Description:
+
+  Get a file's current position.
+
+Arguments:
+
+  This      - Pointer to an opened file handle.
+
+  Position  - Pointer to storage for the current position.
+
+Returns:
+
+  EFI_SUCCESS     - The file position has been reported.
+
+  EFI_UNSUPPORTED - Not valid for directories.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemGetInfo (
+  IN     EFI_FILE  *This,
+  IN     EFI_GUID  *InformationType,
+  IN OUT UINTN     *BufferSize,
+  OUT    VOID      *Buffer
+  )
+/*++
+
+Routine Description:
+
+  Return information about a file or volume.
+
+Arguments:
+
+  This            - Pointer to an opened file handle.
+
+  InformationType - GUID describing the type of information to be returned.
+
+  BufferSize      - On input, the size of the information buffer.  On output, the number of bytes written to the
+                    information buffer.
+
+  Buffer          - Pointer to the first byte of the information buffer.
+
+Returns:
+
+  EFI_SUCCESS           - The requested information has been written into the buffer.
+
+  EFI_UNSUPPORTED       - The InformationType is not known.
+
+  EFI_NO_MEDIA          - The device has no media.
+
+  EFI_DEVICE_ERROR      - The device reported an error.
+
+  EFI_VOLUME_CORRUPTED  - The file system structures are corrupt.
+
+  EFI_BUFFER_TOO_SMALL  - The buffer size was too small to contain the requested information.  The buffer size has
+                          been updated with the size needed to complete the requested operation.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemSetInfo (
+  IN EFI_FILE  *This,
+  IN EFI_GUID  *InformationType,
+  IN UINTN     BufferSize,
+  IN VOID      *Buffer
+  )
+/*++
+
+Routine Description:
+
+  Set information about a file or volume.
+
+Arguments:
+
+  This            - Pointer to an opened file handle.
+
+  InformationType - GUID identifying the type of information to set.
+
+  BufferSize      - Number of bytes of data in the information buffer.
+
+  Buffer          - Pointer to the first byte of data in the information buffer.
+
+Returns:
+
+  EFI_SUCCESS           - The file or volume information has been updated.
+
+  EFI_UNSUPPORTED       - The information identifier is not recognised.
+
+  EFI_NO_MEDIA          - The device has no media.
+
+  EFI_DEVICE_ERROR      - The device reported an error.
+
+  EFI_VOLUME_CORRUPTED  - The file system structures are corrupt.
+
+  EFI_WRITE_PROTECTED   - The file, directory, volume, or device is write protected.
+
+  EFI_ACCESS_DENIED     - The file was opened read-only.
+
+  EFI_VOLUME_FULL       - The volume is full.
+
+  EFI_BAD_BUFFER_SIZE   - The buffer size is smaller than the type indicated by InformationType.
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixSimpleFileSystemFlush (
+  IN EFI_FILE  *This
+  )
+/*++
+
+Routine Description:
+
+  Flush all modified data to the media.
+
+Arguments:
+
+  This  - Pointer to an opened file handle.
+
+Returns:
+
+  EFI_SUCCESS           - The data has been flushed.
+
+  EFI_NO_MEDIA          - The device has no media.
+
+  EFI_DEVICE_ERROR      - The device reported an error.
+
+  EFI_VOLUME_CORRUPTED  - The file system structures have been corrupted.
+
+  EFI_WRITE_PROTECTED   - The file, directory, volume, or device is write protected.
+
+  EFI_ACCESS_DENIED     - The file was opened read-only.
+
+  EFI_VOLUME_FULL       - The volume is full.
+
+--*/
+;
+
+#endif /* _UNIX_SIMPLE_FILE_SYSTEM_H_ */
+
+/* eof - UnixSimpleFileSystem.h */

EdkUnixPkg/Dxe/UnixThunk/Bus/SimpleFileSystem/UnixSimpleFileSystem.msa

@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>UnixSimpleFileSystem</ModuleName>
+    <ModuleType>UEFI_DRIVER</ModuleType>
+    <GuidValue>f330834e-8985-11db-a295-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>Simple filesystem driver</Abstract>
+    <Description>
+      Produce Simple File System abstractions for directories on your PC using Unix APIs.
+      The configuration of what devices to mount or emulate comes from
+      environment variables.
+    </Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>UnixSimpleFileSystem</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverModelLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseMemoryLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>UnixSimpleFileSystem.h</Filename>
+    <Filename>UnixSimpleFileSystem.c</Filename>
+    <Filename>ComponentName.c</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="TO_START">
+      <ProtocolCName>gEfiUnixIoProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="BY_START">
+      <ProtocolCName>gEfiSimpleFileSystemProtocolGuid</ProtocolCName>
+    </Protocol>
+  </Protocols>
+  <Guids>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixFileSystemGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="SOMETIMES_CONSUMED">
+      <GuidCName>gEfiFileSystemInfoGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="SOMETIMES_CONSUMED">
+      <GuidCName>gEfiFileInfoGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="SOMETIMES_CONSUMED">
+      <GuidCName>gEfiFileSystemVolumeLabelInfoIdGuid</GuidCName>
+    </GuidCNames>
+  </Guids>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <DriverBinding>gUnixSimpleFileSystemDriverBinding</DriverBinding>
+      <ComponentName>gUnixSimpleFileSystemComponentName</ComponentName>
+    </Extern>
+  </Externs>
+</ModuleSurfaceArea>

EdkUnixPkg/Dxe/UnixThunk/Bus/Uga/ComponentName.c

@@ -0,0 +1,187 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  ComponentName.c
+
+Abstract:
+
+--*/
+
+#include "UnixUga.h"
+
+//
+// EFI Component Name Functions
+//
+EFI_STATUS
+EFIAPI
+UnixUgaComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  );
+
+EFI_STATUS
+EFIAPI
+UnixUgaComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
+  IN  EFI_HANDLE                                      ControllerHandle,
+  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
+  IN  CHAR8                                           *Language,
+  OUT CHAR16                                          **ControllerName
+  );
+
+//
+// EFI Component Name Protocol
+//
+EFI_COMPONENT_NAME_PROTOCOL     gUnixUgaComponentName = {
+  UnixUgaComponentNameGetDriverName,
+  UnixUgaComponentNameGetControllerName,
+  "eng"
+};
+
+static EFI_UNICODE_STRING_TABLE mUnixUgaDriverNameTable[] = {
+  { "eng", L"Unix Universal Graphics Adapter Driver" },
+  { NULL , NULL }
+};
+
+EFI_STATUS
+EFIAPI
+UnixUgaComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the EFI Driver.
+
+  Arguments:
+    This       - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    Language   - A pointer to a three character ISO 639-2 language identifier.
+                 This is the language of the driver name that that the caller 
+                 is requesting, and it must match one of the languages specified
+                 in SupportedLanguages.  The number of languages supported by a 
+                 driver is up to the driver writer.
+    DriverName - A pointer to the Unicode string to return.  This Unicode string
+                 is the name of the driver specified by This in the language 
+                 specified by Language.
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the Driver specified by This
+                            and the language specified by Language was returned 
+                            in DriverName.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - DriverName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  return LookupUnicodeString (
+          Language,
+          gUnixUgaComponentName.SupportedLanguages,
+          mUnixUgaDriverNameTable,
+          DriverName
+          );
+}
+
+EFI_STATUS
+EFIAPI
+UnixUgaComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
+  IN  EFI_HANDLE                                      ControllerHandle,
+  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
+  IN  CHAR8                                           *Language,
+  OUT CHAR16                                          **ControllerName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the controller
+    that is being managed by an EFI Driver.
+
+  Arguments:
+    This             - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    ControllerHandle - The handle of a controller that the driver specified by 
+                       This is managing.  This handle specifies the controller 
+                       whose name is to be returned.
+    ChildHandle      - The handle of the child controller to retrieve the name 
+                       of.  This is an optional parameter that may be NULL.  It 
+                       will be NULL for device drivers.  It will also be NULL 
+                       for a bus drivers that wish to retrieve the name of the 
+                       bus controller.  It will not be NULL for a bus driver 
+                       that wishes to retrieve the name of a child controller.
+    Language         - A pointer to a three character ISO 639-2 language 
+                       identifier.  This is the language of the controller name 
+                       that that the caller is requesting, and it must match one
+                       of the languages specified in SupportedLanguages.  The 
+                       number of languages supported by a driver is up to the 
+                       driver writer.
+    ControllerName   - A pointer to the Unicode string to return.  This Unicode
+                       string is the name of the controller specified by 
+                       ControllerHandle and ChildHandle in the language specified
+                       by Language from the point of view of the driver specified
+                       by This. 
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the user readable name in the 
+                            language specified by Language for the driver 
+                            specified by This was returned in DriverName.
+    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - ControllerName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This is not currently managing 
+                            the controller specified by ControllerHandle and 
+                            ChildHandle.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  EFI_STATUS            Status;
+  EFI_UGA_DRAW_PROTOCOL *UgaDraw;
+  UGA_PRIVATE_DATA      *Private;
+
+  //
+  // This is a device driver, so ChildHandle must be NULL.
+  //
+  if (ChildHandle != NULL) {
+    return EFI_UNSUPPORTED;
+  }
+
+  //
+  // Get our context back
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiUgaDrawProtocolGuid,
+                  (VOID **)&UgaDraw,
+                  gUnixUgaDriverBinding.DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (EFI_ERROR (Status)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (UgaDraw);
+
+  return LookupUnicodeString (
+          Language,
+          gUnixUgaComponentName.SupportedLanguages,
+          Private->ControllerNameTable,
+          ControllerName
+          );
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/Uga/UnixUga.h

@@ -0,0 +1,289 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixUga.h
+
+Abstract:
+
+  Private data for the Uga driver that is bound to the Unix Thunk protocol 
+
+--*/
+
+#ifndef _UNIX_UGA_H_
+#define _UNIX_UGA_H_
+
+#include "Protocol/UnixUgaIo.h"
+
+#define UNIX_UGA_CLASS_NAME       L"UnixUgaWindow"
+
+#define UGA_PRIVATE_DATA_SIGNATURE  EFI_SIGNATURE_32 ('S', 'g', 'o', 'N')
+typedef struct {
+  UINT64                      Signature;
+
+  EFI_HANDLE                  Handle;
+  EFI_UGA_DRAW_PROTOCOL       UgaDraw;
+  EFI_SIMPLE_TEXT_IN_PROTOCOL SimpleTextIn;
+
+  EFI_UNIX_THUNK_PROTOCOL   *UnixThunk;
+
+  EFI_UNICODE_STRING_TABLE    *ControllerNameTable;
+
+  //
+  // UGA Private Data for GetMode ()
+  //
+  UINT32                      HorizontalResolution;
+  UINT32                      VerticalResolution;
+  UINT32                      ColorDepth;
+  UINT32                      RefreshRate;
+
+  //
+  // UGA Private Data knowing when to start hardware
+  //
+  BOOLEAN                     HardwareNeedsStarting;
+
+  CHAR16                      *WindowName;
+
+  EFI_UNIX_UGA_IO_PROTOCOL    *UgaIo;
+
+} UGA_PRIVATE_DATA;
+
+#define UGA_DRAW_PRIVATE_DATA_FROM_THIS(a)  \
+         CR(a, UGA_PRIVATE_DATA, UgaDraw, UGA_PRIVATE_DATA_SIGNATURE)
+
+#define UGA_PRIVATE_DATA_FROM_TEXT_IN_THIS(a)  \
+         CR(a, UGA_PRIVATE_DATA, SimpleTextIn, UGA_PRIVATE_DATA_SIGNATURE)
+
+//
+// Global Protocol Variables
+//
+extern EFI_DRIVER_BINDING_PROTOCOL  gUnixUgaDriverBinding;
+extern EFI_COMPONENT_NAME_PROTOCOL  gUnixUgaComponentName;
+
+//
+// Uga Hardware abstraction internal worker functions
+//
+EFI_STATUS
+UnixUgaSupported (
+  IN  EFI_UNIX_IO_PROTOCOL  *UnixIo
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  UnixIo - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+UnixUgaConstructor (
+  IN  UGA_PRIVATE_DATA    *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+UnixUgaDestructor (
+  IN  UGA_PRIVATE_DATA    *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+//
+// EFI 1.1 driver model prototypes for Win NT UGA
+//
+
+EFI_STATUS
+EFIAPI
+UnixUgaInitialize (
+  IN EFI_HANDLE            ImageHandle,
+  IN EFI_SYSTEM_TABLE      *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  ImageHandle - TODO: add argument description
+  SystemTable - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixUgaDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL     *This,
+  IN  EFI_HANDLE                      Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL        *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                - TODO: add argument description
+  Handle              - TODO: add argument description
+  RemainingDevicePath - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixUgaDriverBindingStart (
+  IN  EFI_DRIVER_BINDING_PROTOCOL     *This,
+  IN  EFI_HANDLE                      Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL        *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                - TODO: add argument description
+  Handle              - TODO: add argument description
+  RemainingDevicePath - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixUgaDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This              - TODO: add argument description
+  Handle            - TODO: add argument description
+  NumberOfChildren  - TODO: add argument description
+  ChildHandleBuffer - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+UgaPrivateAddQ (
+  IN  UGA_PRIVATE_DATA    *Private,
+  IN  EFI_INPUT_KEY       Key
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+  Key     - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+UnixUgaInitializeSimpleTextInForWindow (
+  IN  UGA_PRIVATE_DATA    *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+#endif

EdkUnixPkg/Dxe/UnixThunk/Bus/Uga/UnixUga.msa

@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>UnixUga</ModuleName>
+    <ModuleType>UEFI_DRIVER</ModuleType>
+    <GuidValue>f33cad86-8985-11db-8040-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>Uga driver</Abstract>
+    <Description>
+      UGA is short hand for Universal Graphics Abstraction protocol.
+      This file is a verision of UgaIo the uses UnixThunk system calls as an IO
+      abstraction. For a PCI device UnixIo would be replaced with
+      a PCI IO abstraction that abstracted a specific PCI device.
+    </Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>UnixUga</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverModelLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseMemoryLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>UnixUga.h</Filename>
+    <Filename>UnixUgaInput.c</Filename>
+    <Filename>UnixUgaDriver.c</Filename>
+    <Filename>UnixUgaScreen.c</Filename>
+    <Filename>ComponentName.c</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="TO_START">
+      <ProtocolCName>gEfiUnixIoProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="BY_START">
+      <ProtocolCName>gEfiUgaDrawProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="BY_START">
+      <ProtocolCName>gEfiUnixUgaIoProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="BY_START">
+      <ProtocolCName>gEfiSimpleTextInProtocolGuid</ProtocolCName>
+    </Protocol>
+  </Protocols>
+  <Events>
+    <CreateEvents>
+      <EventTypes EventGuidCName="gEfiEventExitBootServicesGuid" Usage="SOMETIMES_CONSUMED">
+        <EventType>EVENT_GROUP_GUID</EventType>
+      </EventTypes>
+    </CreateEvents>
+  </Events>
+  <Guids>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixUgaGuid</GuidCName>
+    </GuidCNames>
+  </Guids>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <DriverBinding>gUnixUgaDriverBinding</DriverBinding>
+      <ComponentName>gUnixUgaComponentName</ComponentName>
+    </Extern>
+  </Externs>
+</ModuleSurfaceArea>

EdkUnixPkg/Dxe/UnixThunk/Bus/Uga/UnixUgaDriver.c

@@ -0,0 +1,296 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixUgaDriver.c
+
+Abstract:
+
+  This file implements the EFI 1.1 Device Driver model requirements for UGA
+
+  UGA is short hand for Universal Graphics Abstraction protocol.
+
+  This file is a verision of UgaIo the uses UnixThunk system calls as an IO 
+  abstraction. For a PCI device UnixIo would be replaced with
+  a PCI IO abstraction that abstracted a specific PCI device. 
+
+--*/
+
+#include "UnixUga.h"
+
+EFI_DRIVER_BINDING_PROTOCOL gUnixUgaDriverBinding = {
+  UnixUgaDriverBindingSupported,
+  UnixUgaDriverBindingStart,
+  UnixUgaDriverBindingStop,
+  0x10,
+  NULL,
+  NULL
+};
+
+
+EFI_STATUS
+EFIAPI
+UnixUgaDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL     *This,
+  IN  EFI_HANDLE                      Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL        *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    Handle - add argument and description to function comment
+// TODO:    RemainingDevicePath - add argument and description to function comment
+{
+  EFI_STATUS              Status;
+  EFI_UNIX_IO_PROTOCOL  *UnixIo;
+
+  //
+  // Open the IO Abstraction(s) needed to perform the supported test
+  //
+  Status = gBS->OpenProtocol (
+                  Handle,
+                  &gEfiUnixIoProtocolGuid,
+                  (VOID **)&UnixIo,
+                  This->DriverBindingHandle,
+                  Handle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  Status = UnixUgaSupported (UnixIo);
+
+  //
+  // Close the I/O Abstraction(s) used to perform the supported test
+  //
+  gBS->CloseProtocol (
+        Handle,
+        &gEfiUnixIoProtocolGuid,
+        This->DriverBindingHandle,
+        Handle
+        );
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+UnixUgaDriverBindingStart (
+  IN  EFI_DRIVER_BINDING_PROTOCOL     *This,
+  IN  EFI_HANDLE                      Handle,
+  IN  EFI_DEVICE_PATH_PROTOCOL        *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    Handle - add argument and description to function comment
+// TODO:    RemainingDevicePath - add argument and description to function comment
+// TODO:    EFI_UNSUPPORTED - add return value to function comment
+{
+  EFI_UNIX_IO_PROTOCOL  *UnixIo;
+  EFI_STATUS              Status;
+  UGA_PRIVATE_DATA        *Private;
+
+  //
+  // Grab the protocols we need
+  //
+  Status = gBS->OpenProtocol (
+                  Handle,
+                  &gEfiUnixIoProtocolGuid,
+                  (VOID **)&UnixIo,
+                  This->DriverBindingHandle,
+                  Handle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (EFI_ERROR (Status)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  //
+  // Allocate Private context data for SGO inteface.
+  //
+  Private = NULL;
+  Status = gBS->AllocatePool (
+                  EfiBootServicesData,
+                  sizeof (UGA_PRIVATE_DATA),
+                  (VOID **)&Private
+                  );
+  if (EFI_ERROR (Status)) {
+    goto Done;
+  }
+  //
+  // Set up context record
+  //
+  Private->Signature            = UGA_PRIVATE_DATA_SIGNATURE;
+  Private->Handle               = Handle;
+  Private->UnixThunk           = UnixIo->UnixThunk;
+
+  Private->ControllerNameTable  = NULL;
+
+  AddUnicodeString (
+    "eng",
+    gUnixUgaComponentName.SupportedLanguages,
+    &Private->ControllerNameTable,
+    UnixIo->EnvString
+    );
+
+  Private->WindowName = UnixIo->EnvString;
+
+  Status              = UnixUgaConstructor (Private);
+  if (EFI_ERROR (Status)) {
+    goto Done;
+  }
+  //
+  // Publish the Uga interface to the world
+  //
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &Private->Handle,
+                  &gEfiUgaDrawProtocolGuid,
+                  &Private->UgaDraw,
+                  &gEfiSimpleTextInProtocolGuid,
+                  &Private->SimpleTextIn,
+                  NULL
+                  );
+
+Done:
+  if (EFI_ERROR (Status)) {
+
+    gBS->CloseProtocol (
+          Handle,
+          &gEfiUnixIoProtocolGuid,
+          This->DriverBindingHandle,
+          Handle
+          );
+
+    if (Private != NULL) {
+      //
+      // On Error Free back private data
+      //
+      if (Private->ControllerNameTable != NULL) {
+        FreeUnicodeStringTable (Private->ControllerNameTable);
+      }
+
+      gBS->FreePool (Private);
+    }
+  }
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+UnixUgaDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    Handle - add argument and description to function comment
+// TODO:    NumberOfChildren - add argument and description to function comment
+// TODO:    ChildHandleBuffer - add argument and description to function comment
+// TODO:    EFI_NOT_STARTED - add return value to function comment
+// TODO:    EFI_DEVICE_ERROR - add return value to function comment
+{
+  EFI_UGA_DRAW_PROTOCOL *UgaDraw;
+  EFI_STATUS            Status;
+  UGA_PRIVATE_DATA      *Private;
+
+  Status = gBS->OpenProtocol (
+                  Handle,
+                  &gEfiUgaDrawProtocolGuid,
+                  (VOID **)&UgaDraw,
+                  This->DriverBindingHandle,
+                  Handle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (EFI_ERROR (Status)) {
+    //
+    // If the UGA interface does not exist the driver is not started
+    //
+    return EFI_NOT_STARTED;
+  }
+
+  //
+  // Get our private context information
+  //
+  Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (UgaDraw);
+
+  //
+  // Remove the SGO interface from the system
+  //
+  Status = gBS->UninstallMultipleProtocolInterfaces (
+                  Private->Handle,
+                  &gEfiUgaDrawProtocolGuid,
+                  &Private->UgaDraw,
+                  &gEfiSimpleTextInProtocolGuid,
+                  &Private->SimpleTextIn,
+                  NULL
+                  );
+  if (!EFI_ERROR (Status)) {
+    //
+    // Shutdown the hardware
+    //
+    Status = UnixUgaDestructor (Private);
+    if (EFI_ERROR (Status)) {
+      return EFI_DEVICE_ERROR;
+    }
+
+    gBS->CloseProtocol (
+          Handle,
+          &gEfiUnixIoProtocolGuid,
+          This->DriverBindingHandle,
+          Handle
+          );
+
+    //
+    // Free our instance data
+    //
+    FreeUnicodeStringTable (Private->ControllerNameTable);
+
+    gBS->FreePool (Private);
+
+  }
+
+  return Status;
+}
+

EdkUnixPkg/Dxe/UnixThunk/Bus/Uga/UnixUgaInput.c

@@ -0,0 +1,221 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixUgaInput.c
+
+Abstract:
+
+  This file produces the Simple Text In for an Uga window. 
+
+  This stuff is linked at the hip to the Window, since the window
+  processing is done in a thread kicked off in UnixUgaImplementation.c
+
+  Since the window information is processed in an other thread we need
+  a keyboard Queue to pass data about. The Simple Text In code just 
+  takes data off the Queue. The WinProc message loop takes keyboard input
+  and places it in the Queue.
+
+--*/
+
+#include "UnixUga.h"
+
+//
+// Simple Text In implementation.
+//
+
+EFI_STATUS
+EFIAPI
+UnixUgaSimpleTextInReset (
+  IN EFI_SIMPLE_TEXT_IN_PROTOCOL          *This,
+  IN BOOLEAN                              ExtendedVerification
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                  - TODO: add argument description
+  ExtendedVerification  - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UGA_PRIVATE_DATA  *Private;
+  EFI_INPUT_KEY     Key;
+  EFI_TPL           OldTpl;
+
+  Private = UGA_PRIVATE_DATA_FROM_TEXT_IN_THIS (This);
+  if (Private->UgaIo == NULL) {
+    return EFI_SUCCESS;
+  }
+
+  //
+  // Enter critical section
+  //
+  OldTpl = gBS->RaiseTPL (EFI_TPL_NOTIFY);
+
+  //
+  // A reset is draining the Queue
+  //
+  while (Private->UgaIo->UgaGetKey(Private->UgaIo, &Key) == EFI_SUCCESS)
+    ;
+
+  //
+  // Leave critical section and return
+  //
+  gBS->RestoreTPL (OldTpl);
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixUgaSimpleTextInReadKeyStroke (
+  IN EFI_SIMPLE_TEXT_IN_PROTOCOL          *This,
+  OUT EFI_INPUT_KEY                       *Key
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This  - TODO: add argument description
+  Key   - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  UGA_PRIVATE_DATA  *Private;
+  EFI_STATUS        Status;
+  EFI_TPL           OldTpl;
+
+  Private = UGA_PRIVATE_DATA_FROM_TEXT_IN_THIS (This);
+  if (Private->UgaIo == NULL) {
+    return EFI_NOT_READY;
+  }
+
+  //
+  // Enter critical section
+  //
+  OldTpl  = gBS->RaiseTPL (EFI_TPL_NOTIFY);
+
+  Status  = Private->UgaIo->UgaGetKey(Private->UgaIo, Key);
+  //
+  // Leave critical section and return
+  //
+  gBS->RestoreTPL (OldTpl);
+
+  return Status;
+}
+
+STATIC
+VOID
+EFIAPI
+UnixUgaSimpleTextInWaitForKey (
+  IN EFI_EVENT          Event,
+  IN VOID               *Context
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Event   - TODO: add argument description
+  Context - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  UGA_PRIVATE_DATA  *Private;
+  EFI_STATUS        Status;
+  EFI_TPL           OldTpl;
+
+  Private = (UGA_PRIVATE_DATA *) Context;
+  if (Private->UgaIo == NULL) {
+    return;
+  }
+
+  //
+  // Enter critical section
+  //
+  OldTpl  = gBS->RaiseTPL (EFI_TPL_NOTIFY);
+
+  Status  = Private->UgaIo->UgaCheckKey(Private->UgaIo);
+  if (!EFI_ERROR (Status)) {
+    //
+    // If a there is a key in the queue signal our event.
+    //
+    gBS->SignalEvent (Event);
+  }
+  //
+  // Leave critical section and return
+  //
+  gBS->RestoreTPL (OldTpl);
+}
+
+EFI_STATUS
+UnixUgaInitializeSimpleTextInForWindow (
+  IN  UGA_PRIVATE_DATA    *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  EFI_STATUS  Status;
+
+  //
+  // Initialize Simple Text In protoocol
+  //
+  Private->SimpleTextIn.Reset         = UnixUgaSimpleTextInReset;
+  Private->SimpleTextIn.ReadKeyStroke = UnixUgaSimpleTextInReadKeyStroke;
+
+  Status = gBS->CreateEvent (
+                  EFI_EVENT_NOTIFY_WAIT,
+                  EFI_TPL_NOTIFY,
+                  UnixUgaSimpleTextInWaitForKey,
+                  Private,
+                  &Private->SimpleTextIn.WaitForKey
+                  );
+
+  return Status;
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/Uga/UnixUgaScreen.c

@@ -0,0 +1,446 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+  
+    UnixUgaScreen.c
+
+Abstract:
+
+  This file produces the graphics abstration of UGA. It is called by 
+  UnixUgaDriver.c file which deals with the EFI 1.1 driver model. 
+  This file just does graphics.
+
+--*/
+
+#include "UnixUga.h"
+
+EFI_UNIX_THUNK_PROTOCOL *mUnix;
+static EFI_EVENT          mUgaScreenExitBootServicesEvent;
+
+STATIC
+EFI_STATUS
+UnixUgaStartWindow (
+  IN  UGA_PRIVATE_DATA    *Private,
+  IN  UINT32              HorizontalResolution,
+  IN  UINT32              VerticalResolution,
+  IN  UINT32              ColorDepth,
+  IN  UINT32              RefreshRate
+  );
+
+STATIC
+VOID
+EFIAPI
+KillNtUgaThread (
+  IN EFI_EVENT  Event,
+  IN VOID       *Context
+  );
+
+//
+// UGA Protocol Member Functions
+//
+
+EFI_STATUS
+EFIAPI
+UnixUgaGetMode (
+  EFI_UGA_DRAW_PROTOCOL *This,
+  UINT32                *HorizontalResolution,
+  UINT32                *VerticalResolution,
+  UINT32                *ColorDepth,
+  UINT32                *RefreshRate
+  )
+/*++
+
+  Routine Description:
+    Return the current video mode information.
+
+  Arguments:
+    This                  - Protocol instance pointer.
+    HorizontalResolution  - Current video horizontal resolution in pixels
+    VerticalResolution    - Current video Vertical resolution in pixels
+    ColorDepth            - Current video color depth in bits per pixel
+    RefreshRate           - Current video refresh rate in Hz.
+
+  Returns:
+    EFI_SUCCESS     - Mode information returned.
+    EFI_NOT_STARTED - Video display is not initialized. Call SetMode () 
+    EFI_INVALID_PARAMETER - One of the input args was NULL.
+
+--*/
+// TODO:    ADD IN/OUT description here
+{
+  UGA_PRIVATE_DATA  *Private;
+
+  Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This);
+
+  if (Private->HardwareNeedsStarting) {
+    return EFI_NOT_STARTED;
+  }
+
+  if ((HorizontalResolution == NULL) ||
+      (VerticalResolution   == NULL) ||
+      (ColorDepth           == NULL) ||
+      (RefreshRate          == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *HorizontalResolution = Private->HorizontalResolution;
+  *VerticalResolution   = Private->VerticalResolution;
+  *ColorDepth           = Private->ColorDepth;
+  *RefreshRate          = Private->RefreshRate;
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+UnixUgaSetMode (
+  EFI_UGA_DRAW_PROTOCOL *This,
+  UINT32                HorizontalResolution,
+  UINT32                VerticalResolution,
+  UINT32                ColorDepth,
+  UINT32                RefreshRate
+  )
+/*++
+
+  Routine Description:
+    Return the current video mode information.
+
+  Arguments:
+    This                  - Protocol instance pointer.
+    HorizontalResolution  - Current video horizontal resolution in pixels
+    VerticalResolution    - Current video Vertical resolution in pixels
+    ColorDepth            - Current video color depth in bits per pixel
+    RefreshRate           - Current video refresh rate in Hz.
+
+  Returns:
+    EFI_SUCCESS     - Mode information returned.
+    EFI_NOT_STARTED - Video display is not initialized. Call SetMode () 
+    EFI_INVALID_PARAMETER - One of the input args was NULL.
+
+--*/
+// TODO:    EFI_DEVICE_ERROR - add return value to function comment
+// TODO:    EFI_DEVICE_ERROR - add return value to function comment
+// TODO:    ADD IN/OUT description here
+{
+  EFI_STATUS        Status;
+  UGA_PRIVATE_DATA  *Private;
+  EFI_UGA_PIXEL     Fill;
+
+  Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This);
+
+  if (Private->HardwareNeedsStarting) {
+    Status = UnixUgaStartWindow (
+              Private,
+              HorizontalResolution,
+              VerticalResolution,
+              ColorDepth,
+              RefreshRate
+              );
+    if (EFI_ERROR (Status)) {
+      return EFI_DEVICE_ERROR;
+    }
+
+    Private->HardwareNeedsStarting = FALSE;
+  }
+  Status = Private->UgaIo->UgaSize(Private->UgaIo,
+				   HorizontalResolution,
+				   VerticalResolution);
+
+  Private->HorizontalResolution = HorizontalResolution;
+  Private->VerticalResolution   = VerticalResolution;
+  Private->ColorDepth           = ColorDepth;
+  Private->RefreshRate          = RefreshRate;
+
+  Fill.Red                      = 0x00;
+  Fill.Green                    = 0x00;
+  Fill.Blue                     = 0x00;
+  This->Blt (
+          This,
+          &Fill,
+          EfiUgaVideoFill,
+          0,
+          0,
+          0,
+          0,
+          HorizontalResolution,
+          VerticalResolution,
+          HorizontalResolution * sizeof (EFI_UGA_PIXEL)
+          );
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+UnixUgaBlt (
+  IN  EFI_UGA_DRAW_PROTOCOL                   *This,
+  IN  EFI_UGA_PIXEL                           *BltBuffer, OPTIONAL
+  IN  EFI_UGA_BLT_OPERATION                   BltOperation,
+  IN  UINTN                                   SourceX,
+  IN  UINTN                                   SourceY,
+  IN  UINTN                                   DestinationX,
+  IN  UINTN                                   DestinationY,
+  IN  UINTN                                   Width,
+  IN  UINTN                                   Height,
+  IN  UINTN                                   Delta         OPTIONAL
+  )
+/*++
+
+  Routine Description:
+    Blt pixels from the rectangle (Width X Height) formed by the BltBuffer
+    onto the graphics screen starting a location (X, Y). (0, 0) is defined as
+    the upper left hand side of the screen. (X, Y) can be outside of the 
+    current screen geometry and the BltBuffer will be cliped when it is 
+    displayed. X and Y can be negative or positive. If Width or Height is 
+    bigger than the current video screen the image will be clipped.
+
+  Arguments:
+    This          - Protocol instance pointer.
+    X             - X location on graphics screen. 
+    Y             - Y location on the graphics screen.
+    Width         - Width of BltBuffer.
+    Height        - Hight of BltBuffer
+    BltOperation  - Operation to perform on BltBuffer and video memory
+    BltBuffer     - Buffer containing data to blt into video buffer. This 
+                    buffer has a size of Width*Height*sizeof(EFI_UGA_PIXEL)
+    SourceX       - If the BltOperation is a EfiCopyBlt this is the source
+                    of the copy. For other BLT operations this argument is not
+                    used.
+    SourceX       - If the BltOperation is a EfiCopyBlt this is the source
+                    of the copy. For other BLT operations this argument is not
+                    used.
+      
+  Returns:
+    EFI_SUCCESS           - The palette is updated with PaletteArray.
+    EFI_INVALID_PARAMETER - BltOperation is not valid.
+    EFI_DEVICE_ERROR      - A hardware error occured writting to the video 
+                             buffer.
+
+--*/
+// TODO:    SourceY - add argument and description to function comment
+// TODO:    DestinationX - add argument and description to function comment
+// TODO:    DestinationY - add argument and description to function comment
+// TODO:    Delta - add argument and description to function comment
+{
+  UGA_PRIVATE_DATA  *Private;
+  EFI_TPL           OriginalTPL;
+  EFI_STATUS        Status;
+
+  Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (This);
+
+  if ((BltOperation < 0) || (BltOperation >= EfiUgaBltMax)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  if (Width == 0 || Height == 0) {
+    return EFI_INVALID_PARAMETER;
+  }
+  //
+  // If Delta is zero, then the entire BltBuffer is being used, so Delta
+  // is the number of bytes in each row of BltBuffer.  Since BltBuffer is Width pixels size,
+  // the number of bytes in each row can be computed.
+  //
+  if (Delta == 0) {
+    Delta = Width * sizeof (EFI_UGA_PIXEL);
+  }
+
+  //
+  // We have to raise to TPL Notify, so we make an atomic write the frame buffer.
+  // We would not want a timer based event (Cursor, ...) to come in while we are
+  // doing this operation.
+  //
+  OriginalTPL = gBS->RaiseTPL (EFI_TPL_NOTIFY);
+
+  Status = Private->UgaIo->UgaBlt (Private->UgaIo,
+				   BltBuffer,
+				   BltOperation,
+				   SourceX, SourceY,
+				   DestinationX, DestinationY,
+				   Width, Height,
+				   Delta);
+
+  gBS->RestoreTPL (OriginalTPL);
+
+  return Status;
+}
+
+
+//
+// Construction and Destruction functions
+//
+
+EFI_STATUS
+UnixUgaSupported (
+  IN  EFI_UNIX_IO_PROTOCOL  *UnixIo
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+// TODO:    UnixIo - add argument and description to function comment
+// TODO:    EFI_UNSUPPORTED - add return value to function comment
+// TODO:    EFI_SUCCESS - add return value to function comment
+{
+  //
+  // Check to see if the IO abstraction represents a device type we support.
+  //
+  // This would be replaced a check of PCI subsystem ID, etc.
+  //
+  if (!CompareGuid (UnixIo->TypeGuid, &gEfiUnixUgaGuid)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  return EFI_SUCCESS;
+}
+
+
+STATIC
+EFI_STATUS
+UnixUgaStartWindow (
+  IN  UGA_PRIVATE_DATA    *Private,
+  IN  UINT32              HorizontalResolution,
+  IN  UINT32              VerticalResolution,
+  IN  UINT32              ColorDepth,
+  IN  UINT32              RefreshRate
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private               - TODO: add argument description
+  HorizontalResolution  - TODO: add argument description
+  VerticalResolution    - TODO: add argument description
+  ColorDepth            - TODO: add argument description
+  RefreshRate           - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  EFI_STATUS          Status;
+
+  mUnix  = Private->UnixThunk;
+
+  Private->HorizontalResolution = HorizontalResolution;
+  Private->VerticalResolution   = VerticalResolution;
+
+  //
+  // Register to be notified on exit boot services so we can destroy the window.
+  //
+  Status = gBS->CreateEvent (
+                  EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES,
+                  EFI_TPL_CALLBACK,
+                  KillNtUgaThread,
+                  Private,
+                  &mUgaScreenExitBootServicesEvent
+                  );
+
+  Status = Private->UnixThunk->UgaCreate(&Private->UgaIo, Private->WindowName);
+  return Status;
+}
+
+EFI_STATUS
+UnixUgaConstructor (
+  UGA_PRIVATE_DATA    *Private
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+// TODO:    Private - add argument and description to function comment
+// TODO:    EFI_SUCCESS - add return value to function comment
+{
+
+  Private->UgaDraw.GetMode        = UnixUgaGetMode;
+  Private->UgaDraw.SetMode        = UnixUgaSetMode;
+  Private->UgaDraw.Blt            = UnixUgaBlt;
+
+  Private->HardwareNeedsStarting  = TRUE;
+  Private->UgaIo = NULL;
+
+  UnixUgaInitializeSimpleTextInForWindow (Private);
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+UnixUgaDestructor (
+  UGA_PRIVATE_DATA     *Private
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+// TODO:    Private - add argument and description to function comment
+// TODO:    EFI_SUCCESS - add return value to function comment
+{
+  if (!Private->HardwareNeedsStarting) {
+    Private->UgaIo->UgaClose(Private->UgaIo);
+    Private->UgaIo = NULL;
+  }
+
+  return EFI_SUCCESS;
+}
+
+STATIC
+VOID
+EFIAPI
+KillNtUgaThread (
+  IN EFI_EVENT  Event,
+  IN VOID       *Context
+  )
+/*++
+
+Routine Description:
+  
+  This is the UGA screen's callback notification function for exit-boot-services. 
+  All we do here is call UnixUgaDestructor().
+
+Arguments:
+
+  Event   - not used
+  Context - pointer to the Private structure.
+
+Returns:
+
+  None.
+
+--*/
+{
+  EFI_STATUS  Status;
+  Status = UnixUgaDestructor (Context);
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/UnixBusDriver/ComponentName.c

@@ -0,0 +1,187 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  ComponentName.c
+
+Abstract:
+
+--*/
+
+#include "UnixBusDriver.h"
+
+//
+// EFI Component Name Functions
+//
+EFI_STATUS
+EFIAPI
+UnixBusDriverComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  );
+
+EFI_STATUS
+EFIAPI
+UnixBusDriverComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
+  IN  EFI_HANDLE                                      ControllerHandle,
+  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
+  IN  CHAR8                                           *Language,
+  OUT CHAR16                                          **ControllerName
+  );
+
+//
+// EFI Component Name Protocol
+//
+EFI_COMPONENT_NAME_PROTOCOL     gUnixBusDriverComponentName = {
+  UnixBusDriverComponentNameGetDriverName,
+  UnixBusDriverComponentNameGetControllerName,
+  "eng"
+};
+
+static EFI_UNICODE_STRING_TABLE mUnixBusDriverNameTable[] = {
+  { "eng", L"Unix Bus Driver" },
+  { NULL , NULL }
+};
+
+EFI_STATUS
+EFIAPI
+UnixBusDriverComponentNameGetDriverName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
+  IN  CHAR8                        *Language,
+  OUT CHAR16                       **DriverName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the EFI Driver.
+
+  Arguments:
+    This       - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    Language   - A pointer to a three character ISO 639-2 language identifier.
+                 This is the language of the driver name that that the caller 
+                 is requesting, and it must match one of the languages specified
+                 in SupportedLanguages.  The number of languages supported by a 
+                 driver is up to the driver writer.
+    DriverName - A pointer to the Unicode string to return.  This Unicode string
+                 is the name of the driver specified by This in the language 
+                 specified by Language.
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the Driver specified by This
+                            and the language specified by Language was returned 
+                            in DriverName.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - DriverName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  return LookupUnicodeString (
+          Language,
+          gUnixBusDriverComponentName.SupportedLanguages,
+          mUnixBusDriverNameTable,
+          DriverName
+          );
+}
+
+EFI_STATUS
+EFIAPI
+UnixBusDriverComponentNameGetControllerName (
+  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
+  IN  EFI_HANDLE                                      ControllerHandle,
+  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
+  IN  CHAR8                                           *Language,
+  OUT CHAR16                                          **ControllerName
+  )
+/*++
+
+  Routine Description:
+    Retrieves a Unicode string that is the user readable name of the controller
+    that is being managed by an EFI Driver.
+
+  Arguments:
+    This             - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
+    ControllerHandle - The handle of a controller that the driver specified by 
+                       This is managing.  This handle specifies the controller 
+                       whose name is to be returned.
+    ChildHandle      - The handle of the child controller to retrieve the name 
+                       of.  This is an optional parameter that may be NULL.  It 
+                       will be NULL for device drivers.  It will also be NULL 
+                       for a bus drivers that wish to retrieve the name of the 
+                       bus controller.  It will not be NULL for a bus driver 
+                       that wishes to retrieve the name of a child controller.
+    Language         - A pointer to a three character ISO 639-2 language 
+                       identifier.  This is the language of the controller name 
+                       that that the caller is requesting, and it must match one
+                       of the languages specified in SupportedLanguages.  The 
+                       number of languages supported by a driver is up to the 
+                       driver writer.
+    ControllerName   - A pointer to the Unicode string to return.  This Unicode
+                       string is the name of the controller specified by 
+                       ControllerHandle and ChildHandle in the language specified
+                       by Language from the point of view of the driver specified
+                       by This. 
+
+  Returns:
+    EFI_SUCCESS           - The Unicode string for the user readable name in the 
+                            language specified by Language for the driver 
+                            specified by This was returned in DriverName.
+    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
+    EFI_INVALID_PARAMETER - Language is NULL.
+    EFI_INVALID_PARAMETER - ControllerName is NULL.
+    EFI_UNSUPPORTED       - The driver specified by This is not currently managing 
+                            the controller specified by ControllerHandle and 
+                            ChildHandle.
+    EFI_UNSUPPORTED       - The driver specified by This does not support the 
+                            language specified by Language.
+
+--*/
+{
+  EFI_STATUS              Status;
+  EFI_UNIX_IO_PROTOCOL  *UnixIo;
+  UNIX_IO_DEVICE        *Private;
+
+  //
+  // This is a bus driver, so ChildHandle can not be NULL.
+  //
+  if (ChildHandle == NULL) {
+    return EFI_UNSUPPORTED;
+  }
+
+  //
+  // Get our context back
+  //
+  Status = gBS->OpenProtocol (
+                  ChildHandle,
+                  &gEfiUnixIoProtocolGuid,
+                  &UnixIo,
+                  gUnixBusDriverBinding.DriverBindingHandle,
+                  ChildHandle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (EFI_ERROR (Status)) {
+    return EFI_UNSUPPORTED;
+  }
+
+  Private = UNIX_IO_DEVICE_FROM_THIS (UnixIo);
+
+  return LookupUnicodeString (
+          Language,
+          gUnixBusDriverComponentName.SupportedLanguages,
+          Private->ControllerNameTable,
+          ControllerName
+          );
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/UnixBusDriver/UnixBusDriver.c

@@ -0,0 +1,717 @@
+/*+++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixBusDriver.c
+
+Abstract:
+
+This following section documents the envirnoment variables for the Win NT 
+build.  These variables are used to define the (virtual) hardware 
+configuration of the NT environment
+
+A ! can be used to seperate multiple instances in a variable. Each 
+instance represents a seperate hardware device. 
+
+EFI_UNIX_PHYSICAL_DISKS - maps to drives on your system
+EFI_UNIX_VIRTUAL_DISKS  - maps to a device emulated by a file
+EFI_UNIX_FILE_SYSTEM    - mouts a directory as a file system
+EFI_UNIX_CONSOLE        - make a logical comand line window (only one!)
+EFI_UNIX_UGA            - Builds UGA Windows of Width and Height
+
+ <F>ixed       - Fixed disk like a hard drive.
+ <R>emovable   - Removable media like a floppy or CD-ROM.
+ Read <O>nly   - Write protected device.
+ Read <W>rite  - Read write device.
+ <block count> - Decimal number of blocks a device supports.
+ <block size>  - Decimal number of bytes per block.
+
+ NT envirnonment variable contents. '<' and '>' are not part of the variable, 
+ they are just used to make this help more readable. There should be no 
+ spaces between the ';'. Extra spaces will break the variable. A '!' is  
+ used to seperate multiple devices in a variable.
+
+ EFI_UNIX_VIRTUAL_DISKS = 
+   <F | R><O | W>;<block count>;<block size>[!...]
+
+ EFI_UNIX_PHYSICAL_DISKS =
+   <drive letter>:<F | R><O | W>;<block count>;<block size>[!...]
+
+ Virtual Disks: These devices use a file to emulate a hard disk or removable
+                media device. 
+                
+   Thus a 20 MB emulated hard drive would look like:
+   EFI_UNIX_VIRTUAL_DISKS=FW;40960;512
+
+   A 1.44MB emulated floppy with a block size of 1024 would look like:
+   EFI_UNIX_VIRTUAL_DISKS=RW;1440;1024
+
+ Physical Disks: These devices use NT to open a real device in your system
+
+   Thus a 120 MB floppy would look like:
+   EFI_UNIX_PHYSICAL_DISKS=B:RW;245760;512
+
+   Thus a standard CD-ROM floppy would look like:
+   EFI_UNIX_PHYSICAL_DISKS=Z:RO;307200;2048
+
+ EFI_UNIX_FILE_SYSTEM = 
+   <directory path>[!...]
+
+   Mounting the two directories C:\FOO and C:\BAR would look like:
+   EFI_UNIX_FILE_SYSTEM=c:\foo!c:\bar
+
+ EFI_UNIX_CONSOLE = 
+   <window title>
+
+   Declaring a text console window with the title "My EFI Console" woild look like:
+   EFI_UNIX_CONSOLE=My EFI Console
+
+ EFI_UNIX_UGA = 
+   <width> <height>[!...]
+
+   Declaring a two UGA windows with resolutions of 800x600 and 1024x768 would look like:
+   Example : EFI_UNIX_UGA=800 600!1024 768
+
+ EFI_UNIX_PASS_THROUGH =
+   <BaseAddress>;<Bus#>;<Device#>;<Function#>
+
+   Declaring a base address of 0xE0000000 (used for PCI Express devices)
+   and having NT32 talk to a device located at bus 0, device 1, function 0:
+   Example : EFI_UNIX_PASS_THROUGH=E000000;0;1;0
+
+---*/
+
+#include "UnixBusDriver.h"
+//#include "PciHostBridge.h"
+
+//
+// Define GUID for the Unix Bus Driver
+//
+static EFI_GUID gUnixBusDriverGuid = {
+  0x419f582, 0x625, 0x4531, 0x8a, 0x33, 0x85, 0xa9, 0x96, 0x5c, 0x95, 0xbc
+};
+
+//
+// DriverBinding protocol global
+//
+EFI_DRIVER_BINDING_PROTOCOL           gUnixBusDriverBinding = {
+  UnixBusDriverBindingSupported,
+  UnixBusDriverBindingStart,
+  UnixBusDriverBindingStop,
+  0x10,
+  NULL,
+  NULL
+};
+
+#define UNIX_PCD_ARRAY_SIZE (sizeof(mPcdEnvironment)/sizeof(UNIX_PCD_ENTRY))
+
+//
+// Table to map NT Environment variable to the GUID that should be in
+// device path.
+//
+static UNIX_PCD_ENTRY  mPcdEnvironment[] = {
+  {PcdToken(PcdUnixConsole),       &gEfiUnixConsoleGuid},
+  {PcdToken(PcdUnixUga),           &gEfiUnixUgaGuid},
+  {PcdToken(PcdUnixFileSystem),    &gEfiUnixFileSystemGuid},
+  {PcdToken(PcdUnixVirtualDisk),   &gEfiUnixVirtualDisksGuid},
+  {PcdToken(PcdUnixPhysicalDisk),  &gEfiUnixPhysicalDisksGuid},
+  {PcdToken(PcdUnixCpuModel),      &gEfiUnixCPUModelGuid},
+  {PcdToken(PcdUnixCpuSpeed),      &gEfiUnixCPUSpeedGuid},
+  {PcdToken(PcdUnixMemorySize),    &gEfiUnixMemoryGuid}
+};
+
+VOID *
+AllocateMemory (
+  IN  UINTN   Size
+  )
+{
+  EFI_STATUS  Status;
+  VOID        *Buffer;
+
+  Status = gBS->AllocatePool (
+                  EfiBootServicesData,
+                  Size,
+                  (VOID *)&Buffer
+                  );
+  if (EFI_ERROR (Status)) {
+    ASSERT (FALSE);
+    return NULL;
+  }
+  return Buffer;
+}
+
+
+EFI_STATUS
+EFIAPI
+UnixBusDriverBindingSupported (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    ControllerHandle - add argument and description to function comment
+// TODO:    RemainingDevicePath - add argument and description to function comment
+// TODO:    EFI_UNSUPPORTED - add return value to function comment
+// TODO:    EFI_UNSUPPORTED - add return value to function comment
+// TODO:    EFI_SUCCESS - add return value to function comment
+// TODO:    EFI_SUCCESS - add return value to function comment
+{
+  EFI_STATUS                Status;
+  EFI_DEVICE_PATH_PROTOCOL  *ParentDevicePath;
+  EFI_UNIX_THUNK_PROTOCOL *UnixThunk;
+  UINTN                     Index;
+
+  //
+  // Check the contents of the first Device Path Node of RemainingDevicePath to make sure
+  // it is a legal Device Path Node for this bus driver's children.
+  //
+  if (RemainingDevicePath != NULL) {
+    if (RemainingDevicePath->Type != HARDWARE_DEVICE_PATH ||
+        RemainingDevicePath->SubType != HW_VENDOR_DP ||
+        DevicePathNodeLength(RemainingDevicePath) != sizeof(UNIX_VENDOR_DEVICE_PATH_NODE)) {
+      return EFI_UNSUPPORTED;
+    }
+
+    for (Index = 0; Index < UNIX_PCD_ARRAY_SIZE; Index++) {
+      if (CompareGuid (&((VENDOR_DEVICE_PATH *) RemainingDevicePath)->Guid, mPcdEnvironment[Index].DevicePathGuid)) {
+        break;
+      }
+    }
+
+    if (Index >= UNIX_PCD_ARRAY_SIZE) {
+      return EFI_UNSUPPORTED;
+    }
+  }
+  
+  //
+  // Open the IO Abstraction(s) needed to perform the supported test
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  (VOID **)&ParentDevicePath,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (Status == EFI_ALREADY_STARTED) {
+    return EFI_SUCCESS;
+  }
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  gBS->CloseProtocol (
+        ControllerHandle,
+        &gEfiDevicePathProtocolGuid,
+        This->DriverBindingHandle,
+        ControllerHandle
+        );
+
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiUnixThunkProtocolGuid,
+                  (VOID **)&UnixThunk,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (Status == EFI_ALREADY_STARTED) {
+    return EFI_SUCCESS;
+  }
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Since we call through UnixThunk we need to make sure it's valid
+  //
+  Status = EFI_SUCCESS;
+  if (UnixThunk->Signature != EFI_UNIX_THUNK_PROTOCOL_SIGNATURE) {
+    Status = EFI_UNSUPPORTED;
+  }
+
+  //
+  // Close the I/O Abstraction(s) used to perform the supported test
+  //
+  gBS->CloseProtocol (
+        ControllerHandle,
+        &gEfiUnixThunkProtocolGuid,
+        This->DriverBindingHandle,
+        ControllerHandle
+        );
+
+  return Status;
+}
+
+EFI_STATUS
+EFIAPI
+UnixBusDriverBindingStart (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+  None
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    ControllerHandle - add argument and description to function comment
+// TODO:    RemainingDevicePath - add argument and description to function comment
+// TODO:    EFI_OUT_OF_RESOURCES - add return value to function comment
+// TODO:    EFI_OUT_OF_RESOURCES - add return value to function comment
+// TODO:    EFI_SUCCESS - add return value to function comment
+{
+  EFI_STATUS                      Status;
+  EFI_STATUS                      InstallStatus;
+  EFI_UNIX_THUNK_PROTOCOL       *UnixThunk;
+  EFI_DEVICE_PATH_PROTOCOL        *ParentDevicePath;
+  UNIX_BUS_DEVICE               *UnixBusDevice;
+  UNIX_IO_DEVICE                *UnixDevice;
+  UINTN                           Index;
+  CHAR16                          *StartString;
+  CHAR16                          *SubString;
+  UINT16                          Count;
+  UINTN                           StringSize;
+  UINT16                          ComponentName[MAX_UNIX_ENVIRNMENT_VARIABLE_LENGTH];
+  UNIX_VENDOR_DEVICE_PATH_NODE  *Node;
+  BOOLEAN                         CreateDevice;
+  CHAR16                          *TempStr;
+  CHAR16                          *PcdTempStr;
+  UINTN                           TempStrSize;
+
+  Status = EFI_UNSUPPORTED;
+
+  //
+  // Grab the protocols we need
+  //
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  (VOID **)&ParentDevicePath,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
+    return Status;
+  }
+
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiUnixThunkProtocolGuid,
+                  (VOID **)&UnixThunk,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_BY_DRIVER
+                  );
+  if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
+    return Status;
+  }
+
+  if (Status != EFI_ALREADY_STARTED) {
+    Status = gBS->AllocatePool (
+                    EfiBootServicesData,
+                    sizeof (UNIX_BUS_DEVICE),
+                    (VOID *) &UnixBusDevice
+                    );
+    if (EFI_ERROR (Status)) {
+      return Status;
+    }
+
+    UnixBusDevice->Signature           = UNIX_BUS_DEVICE_SIGNATURE;
+    UnixBusDevice->ControllerNameTable = NULL;
+
+    AddUnicodeString (
+      "eng",
+      gUnixBusDriverComponentName.SupportedLanguages,
+      &UnixBusDevice->ControllerNameTable,
+      L"Unix Bus Controller"
+      );
+
+    Status = gBS->InstallMultipleProtocolInterfaces (
+                    &ControllerHandle,
+                    &gUnixBusDriverGuid,
+                    UnixBusDevice,
+                    NULL
+                    );
+    if (EFI_ERROR (Status)) {
+      FreeUnicodeStringTable (UnixBusDevice->ControllerNameTable);
+      gBS->FreePool (UnixBusDevice);
+      return Status;
+    }
+  }
+
+  //
+  // Loop on the Variable list. Parse each variable to produce a set of handles that
+  // represent virtual hardware devices.
+  //
+  InstallStatus   = EFI_NOT_FOUND;
+  for (Index = 0; Index < UNIX_PCD_ARRAY_SIZE; Index++) {
+    PcdTempStr = (VOID *)LibPcdGetPtr (mPcdEnvironment[Index].Token);
+    ASSERT (PcdTempStr != NULL);
+
+    TempStrSize = StrLen (PcdTempStr);
+    TempStr = AllocateMemory ((TempStrSize * sizeof (CHAR16)) + 1);
+    StrCpy (TempStr, PcdTempStr);
+
+    StartString = TempStr;
+
+    //
+    // Parse the envirnment variable into sub strings using '!' as a delimator.
+    // Each substring needs it's own handle to be added to the system. This code
+    // does not understand the sub string. Thats the device drivers job.
+    //
+    Count = 0;
+    while (*StartString != '\0') {
+
+      //
+      // Find the end of the sub string
+      //
+      SubString = StartString;
+      while (*SubString != '\0' && *SubString != '!') {
+        SubString++;
+      }
+
+      if (*SubString == '!') {
+        //
+        // Replace token with '\0' to make sub strings. If this is the end
+        //  of the string SubString will already point to NULL.
+        //
+        *SubString = '\0';
+        SubString++;
+      }
+
+      CreateDevice = TRUE;
+      if (RemainingDevicePath != NULL) {
+        CreateDevice  = FALSE;
+        Node          = (UNIX_VENDOR_DEVICE_PATH_NODE *) RemainingDevicePath;
+        if (Node->VendorDevicePath.Header.Type == HARDWARE_DEVICE_PATH &&
+            Node->VendorDevicePath.Header.SubType == HW_VENDOR_DP &&
+            DevicePathNodeLength (&Node->VendorDevicePath.Header) == sizeof (UNIX_VENDOR_DEVICE_PATH_NODE)
+            ) {
+          if (CompareGuid (&Node->VendorDevicePath.Guid, mPcdEnvironment[Index].DevicePathGuid) &&
+              Node->Instance == Count
+              ) {
+            CreateDevice = TRUE;
+          }
+        }
+      }
+
+      if (CreateDevice) {
+
+        //
+        // Allocate instance structure, and fill in parent information.
+        //
+        UnixDevice = AllocateMemory (sizeof (UNIX_IO_DEVICE));
+        if (UnixDevice == NULL) {
+          return EFI_OUT_OF_RESOURCES;
+        }
+
+        UnixDevice->Handle             = NULL;
+        UnixDevice->ControllerHandle   = ControllerHandle;
+        UnixDevice->ParentDevicePath   = ParentDevicePath;
+
+        UnixDevice->UnixIo.UnixThunk = UnixThunk;
+
+        //
+        // Plus 2 to account for the NULL at the end of the Unicode string
+        //
+        StringSize = (UINTN) ((UINT8 *) SubString - (UINT8 *) StartString) + sizeof (CHAR16);
+        UnixDevice->UnixIo.EnvString = AllocateMemory (StringSize);
+        if (UnixDevice->UnixIo.EnvString != NULL) {
+          CopyMem (UnixDevice->UnixIo.EnvString, StartString, StringSize);
+        }
+
+        UnixDevice->ControllerNameTable = NULL;
+
+	//  FIXME: check size
+        StrCpy(ComponentName, UnixDevice->UnixIo.EnvString);
+
+        UnixDevice->DevicePath = UnixBusCreateDevicePath (
+                                    ParentDevicePath,
+                                    mPcdEnvironment[Index].DevicePathGuid,
+                                    Count
+                                    );
+        if (UnixDevice->DevicePath == NULL) {
+          gBS->FreePool (UnixDevice);
+          return EFI_OUT_OF_RESOURCES;
+        }
+
+        AddUnicodeString (
+          "eng",
+          gUnixBusDriverComponentName.SupportedLanguages,
+          &UnixDevice->ControllerNameTable,
+          ComponentName
+          );
+
+        UnixDevice->UnixIo.TypeGuid       = mPcdEnvironment[Index].DevicePathGuid;
+        UnixDevice->UnixIo.InstanceNumber = Count;
+
+        UnixDevice->Signature              = UNIX_IO_DEVICE_SIGNATURE;
+
+        Status = gBS->InstallMultipleProtocolInterfaces (
+                        &UnixDevice->Handle,
+                        &gEfiDevicePathProtocolGuid,
+                        UnixDevice->DevicePath,
+                        &gEfiUnixIoProtocolGuid,
+                        &UnixDevice->UnixIo,
+                        NULL
+                        );
+        if (EFI_ERROR (Status)) {
+          FreeUnicodeStringTable (UnixDevice->ControllerNameTable);
+          gBS->FreePool (UnixDevice);
+        } else {
+          //
+          // Open For Child Device
+          //
+          Status = gBS->OpenProtocol (
+                          ControllerHandle,
+                          &gEfiUnixThunkProtocolGuid,
+                          (VOID **)&UnixThunk,
+                          This->DriverBindingHandle,
+                          UnixDevice->Handle,
+                          EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+                          );
+          if (!EFI_ERROR (Status)) {
+            InstallStatus = EFI_SUCCESS;
+          }
+        }
+      }
+
+      //
+      // Parse Next sub string. This will point to '\0' if we are at the end.
+      //
+      Count++;
+      StartString = SubString;
+    }
+
+    gBS->FreePool (TempStr);
+  }
+
+  return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+EFIAPI
+UnixBusDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   ControllerHandle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer
+  )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+    None
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    ControllerHandle - add argument and description to function comment
+// TODO:    NumberOfChildren - add argument and description to function comment
+// TODO:    ChildHandleBuffer - add argument and description to function comment
+// TODO:    EFI_SUCCESS - add return value to function comment
+// TODO:    EFI_DEVICE_ERROR - add return value to function comment
+// TODO:    EFI_SUCCESS - add return value to function comment
+{
+  EFI_STATUS                Status;
+  UINTN                     Index;
+  BOOLEAN                   AllChildrenStopped;
+  EFI_UNIX_IO_PROTOCOL    *UnixIo;
+  UNIX_BUS_DEVICE         *UnixBusDevice;
+  UNIX_IO_DEVICE          *UnixDevice;
+  EFI_UNIX_THUNK_PROTOCOL *UnixThunk;
+
+  //
+  // Complete all outstanding transactions to Controller.
+  // Don't allow any new transaction to Controller to be started.
+  //
+
+  if (NumberOfChildren == 0) {
+    //
+    // Close the bus driver
+    //
+    Status = gBS->OpenProtocol (
+                    ControllerHandle,
+                    &gUnixBusDriverGuid,
+                    (VOID **)&UnixBusDevice,
+                    This->DriverBindingHandle,
+                    ControllerHandle,
+                    EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                    );
+    if (EFI_ERROR (Status)) {
+      return Status;
+    }
+
+    gBS->UninstallMultipleProtocolInterfaces (
+          ControllerHandle,
+          &gUnixBusDriverGuid,
+          UnixBusDevice,
+          NULL
+          );
+
+    FreeUnicodeStringTable (UnixBusDevice->ControllerNameTable);
+
+    gBS->FreePool (UnixBusDevice);
+
+    gBS->CloseProtocol (
+          ControllerHandle,
+          &gEfiUnixThunkProtocolGuid,
+          This->DriverBindingHandle,
+          ControllerHandle
+          );
+
+    gBS->CloseProtocol (
+          ControllerHandle,
+          &gEfiDevicePathProtocolGuid,
+          This->DriverBindingHandle,
+          ControllerHandle
+          );
+    return EFI_SUCCESS;
+  }
+
+  AllChildrenStopped = TRUE;
+
+  for (Index = 0; Index < NumberOfChildren; Index++) {
+
+    Status = gBS->OpenProtocol (
+                    ChildHandleBuffer[Index],
+                    &gEfiUnixIoProtocolGuid,
+                    (VOID **)&UnixIo,
+                    This->DriverBindingHandle,
+                    ControllerHandle,
+                    EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                    );
+    if (!EFI_ERROR (Status)) {
+
+      UnixDevice = UNIX_IO_DEVICE_FROM_THIS (UnixIo);
+
+      Status = gBS->CloseProtocol (
+                      ControllerHandle,
+                      &gEfiUnixThunkProtocolGuid,
+                      This->DriverBindingHandle,
+                      UnixDevice->Handle
+                      );
+
+      Status = gBS->UninstallMultipleProtocolInterfaces (
+                      UnixDevice->Handle,
+                      &gEfiDevicePathProtocolGuid,
+                      UnixDevice->DevicePath,
+                      &gEfiUnixIoProtocolGuid,
+                      &UnixDevice->UnixIo,
+                      NULL
+                      );
+
+      if (EFI_ERROR (Status)) {
+        gBS->OpenProtocol (
+              ControllerHandle,
+              &gEfiUnixThunkProtocolGuid,
+              (VOID **) &UnixThunk,
+              This->DriverBindingHandle,
+              UnixDevice->Handle,
+              EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+              );
+      } else {
+        //
+        // Close the child handle
+        //
+        FreeUnicodeStringTable (UnixDevice->ControllerNameTable);
+        gBS->FreePool (UnixDevice);
+      }
+    }
+
+    if (EFI_ERROR (Status)) {
+      AllChildrenStopped = FALSE;
+    }
+  }
+
+  if (!AllChildrenStopped) {
+    return EFI_DEVICE_ERROR;
+  }
+
+  return EFI_SUCCESS;
+}
+
+EFI_DEVICE_PATH_PROTOCOL *
+UnixBusCreateDevicePath (
+  IN  EFI_DEVICE_PATH_PROTOCOL  *RootDevicePath,
+  IN  EFI_GUID                  *Guid,
+  IN  UINT16                    InstanceNumber
+  )
+/*++
+
+Routine Description:
+  Create a device path node using Guid and InstanceNumber and append it to
+  the passed in RootDevicePath
+
+Arguments:
+  RootDevicePath - Root of the device path to return.
+
+  Guid           - GUID to use in vendor device path node.
+
+  InstanceNumber - Instance number to use in the vendor device path. This
+                    argument is needed to make sure each device path is unique.
+
+Returns:
+
+  EFI_DEVICE_PATH_PROTOCOL 
+
+--*/
+{
+  UNIX_VENDOR_DEVICE_PATH_NODE  DevicePath;
+
+  DevicePath.VendorDevicePath.Header.Type     = HARDWARE_DEVICE_PATH;
+  DevicePath.VendorDevicePath.Header.SubType  = HW_VENDOR_DP;
+  SetDevicePathNodeLength (&DevicePath.VendorDevicePath.Header, sizeof (UNIX_VENDOR_DEVICE_PATH_NODE));
+
+  //
+  // The GUID defines the Class
+  //
+  CopyMem (&DevicePath.VendorDevicePath.Guid, Guid, sizeof (EFI_GUID));
+
+  //
+  // Add an instance number so we can make sure there are no Device Path
+  // duplication.
+  //
+  DevicePath.Instance = InstanceNumber;
+
+  return AppendDevicePathNode (
+          RootDevicePath,
+          (EFI_DEVICE_PATH_PROTOCOL *) &DevicePath
+          );
+}

EdkUnixPkg/Dxe/UnixThunk/Bus/UnixBusDriver/UnixBusDriver.h

@@ -0,0 +1,297 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixBusDriver.h
+
+Abstract:
+
+This following section documents the PCD for the Unix 
+build.  These variables are used to define the (virtual) hardware 
+configuration of the Unix environment
+
+A ! can be used to seperate multiple instances in a variable. Each 
+instance represents a seperate hardware device. 
+
+EFI_UNIX_PHYSICAL_DISKS - maps to drives on your system
+EFI_UNIX_VIRTUAL_DISKS  - maps to a device emulated by a file
+EFI_UNIX_FILE_SYSTEM    - mouts a directory as a file system
+EFI_UNIX_CONSOLE        - make a logical comand line window (only one!)
+EFI_UNIX_UGA            - Builds UGA Windows of Width and Height
+EFI_UNIX_SERIAL_PORT    - maps physical serial ports
+EFI_UNIX_PASS_THRU      - associates a device with our PCI support
+
+ <F>ixed       - Fixed disk like a hard drive.
+ <R>emovable   - Removable media like a floppy or CD-ROM.
+ Read <O>nly   - Write protected device.
+ Read <W>rite  - Read write device.
+ <block count> - Decimal number of blocks a device supports.
+ <block size>  - Decimal number of bytes per block.
+
+ NT envirnonment variable contents. '<' and '>' are not part of the variable, 
+ they are just used to make this help more readable. There should be no 
+ spaces between the ';'. Extra spaces will break the variable. A '!' is  
+ used to seperate multiple devices in a variable.
+
+ EFI_UNIX_VIRTUAL_DISKS = 
+   <F | R><O | W>;<block count>;<block size>[!...]
+
+ EFI_UNIX_PHYSICAL_DISKS =
+   <drive letter>:<F | R><O | W>;<block count>;<block size>[!...]
+
+ Virtual Disks: These devices use a file to emulate a hard disk or removable
+                media device. 
+                
+   Thus a 20 MB emulated hard drive would look like:
+   EFI_UNIX_VIRTUAL_DISKS=FW;40960;512
+
+   A 1.44MB emulated floppy with a block size of 1024 would look like:
+   EFI_UNIX_VIRTUAL_DISKS=RW;1440;1024
+
+ Physical Disks: These devices use NT to open a real device in your system
+
+   Thus a 120 MB floppy would look like:
+   EFI_UNIX_PHYSICAL_DISKS=B:RW;245760;512
+
+   Thus a standard CD-ROM floppy would look like:
+   EFI_UNIX_PHYSICAL_DISKS=Z:RO;307200;2048
+
+ EFI_UNIX_FILE_SYSTEM = 
+   <directory path>[!...]
+
+   Mounting the two directories C:\FOO and C:\BAR would look like:
+   EFI_UNIX_FILE_SYSTEM=c:\foo!c:\bar
+
+ EFI_UNIX_CONSOLE = 
+   <window title>
+
+   Declaring a text console window with the title "My EFI Console" woild look like:
+   EFI_UNIX_CONSOLE=My EFI Console
+
+ EFI_UNIX_UGA = 
+   <width> <height>[!...]
+
+   Declaring a two UGA windows with resolutions of 800x600 and 1024x768 would look like:
+   Example : EFI_UNIX_UGA=800 600!1024 768
+
+ EFI_UNIX_SERIAL_PORT = 
+   <port name>[!...]
+
+   Declaring two serial ports on COM1 and COM2 would look like:
+   Example : EFI_UNIX_SERIAL_PORT=COM1!COM2
+
+ EFI_UNIX_PASS_THROUGH =
+   <BaseAddress>;<Bus#>;<Device#>;<Function#>
+
+   Declaring a base address of 0xE0000000 (used for PCI Express devices)
+   and having NT32 talk to a device located at bus 0, device 1, function 0:
+   Example : EFI_UNIX_PASS_THROUGH=E000000;0;1;0
+
+---*/
+
+#ifndef __UNIX_BUS_DRIVER_H__
+#define __UNIX_BUS_DRIVER_H__
+
+
+
+//
+// Unix Bus Driver Global Variables
+//
+extern EFI_DRIVER_BINDING_PROTOCOL  gUnixBusDriverBinding;
+extern EFI_COMPONENT_NAME_PROTOCOL  gUnixBusDriverComponentName;
+
+//
+// Unix Bus Controller Structure
+//
+#define UNIX_BUS_DEVICE_SIGNATURE EFI_SIGNATURE_32 ('L', 'X', 'B', 'D')
+
+typedef struct {
+  UINT64                    Signature;
+  EFI_UNICODE_STRING_TABLE  *ControllerNameTable;
+} UNIX_BUS_DEVICE;
+
+//
+// Unix Child Device Controller Structure
+//
+#define UNIX_IO_DEVICE_SIGNATURE  EFI_SIGNATURE_32 ('L', 'X', 'V', 'D')
+
+typedef struct {
+  UINT64                    Signature;
+  EFI_HANDLE                Handle;
+  EFI_UNIX_IO_PROTOCOL     UnixIo;
+  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;
+
+  //
+  // Private data about the parent
+  //
+  EFI_HANDLE                ControllerHandle;
+  EFI_DEVICE_PATH_PROTOCOL  *ParentDevicePath;
+
+  EFI_UNICODE_STRING_TABLE  *ControllerNameTable;
+
+} UNIX_IO_DEVICE;
+
+#define UNIX_IO_DEVICE_FROM_THIS(a) \
+  CR(a, UNIX_IO_DEVICE, UnixIo, UNIX_IO_DEVICE_SIGNATURE)
+
+//
+// This is the largest env variable we can parse
+//
+#define MAX_UNIX_ENVIRNMENT_VARIABLE_LENGTH 512
+
+typedef struct {
+  UINTN               Token;
+  EFI_GUID            *DevicePathGuid;
+} UNIX_PCD_ENTRY;
+
+typedef struct {
+  VENDOR_DEVICE_PATH  VendorDevicePath;
+  UINT32              Instance;
+} UNIX_VENDOR_DEVICE_PATH_NODE;
+
+EFI_STATUS
+EFIAPI
+CpuIoInitialize (
+  IN EFI_HANDLE                            ImageHandle,
+  IN EFI_SYSTEM_TABLE                      *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  ImageHandle - TODO: add argument description
+  SystemTable - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+//
+// Driver Binding Protocol function prototypes
+//
+EFI_STATUS
+EFIAPI
+UnixBusDriverBindingSupported (
+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
+  IN EFI_HANDLE                     Handle,
+  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                - TODO: add argument description
+  Handle              - TODO: add argument description
+  RemainingDevicePath - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixBusDriverBindingStart (
+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
+  IN EFI_HANDLE                     ParentHandle,
+  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                - TODO: add argument description
+  ParentHandle        - TODO: add argument description
+  RemainingDevicePath - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixBusDriverBindingStop (
+  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
+  IN  EFI_HANDLE                   Handle,
+  IN  UINTN                        NumberOfChildren,
+  IN  EFI_HANDLE                   *ChildHandleBuffer
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This              - TODO: add argument description
+  Handle            - TODO: add argument description
+  NumberOfChildren  - TODO: add argument description
+  ChildHandleBuffer - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+//
+// Unix Bus Driver private worker functions
+//
+EFI_DEVICE_PATH_PROTOCOL  *
+UnixBusCreateDevicePath (
+  IN  EFI_DEVICE_PATH_PROTOCOL  *RootDevicePath,
+  IN  EFI_GUID                  *Guid,
+  IN  UINT16                    InstanceNumber
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  RootDevicePath  - TODO: add argument description
+  Guid            - TODO: add argument description
+  InstanceNumber  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+
+#endif

EdkUnixPkg/Dxe/UnixThunk/Bus/UnixBusDriver/UnixBusDriver.msa

@@ -0,0 +1,171 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>UnixBusDriver</ModuleName>
+    <ModuleType>UEFI_DRIVER</ModuleType>
+    <GuidValue>f320d656-8985-11db-90e0-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>Unix Bus driver</Abstract>
+    <Description>
+      This following section documents the envirnoment variables for the Win NT
+      build.  These variables are used to define the (virtual) hardware
+      configuration of the NT environment
+    </Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>UnixBusDriver</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverModelLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>PcdLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseMemoryLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DevicePathLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>UnixBusDriver.h</Filename>
+    <Filename>UnixBusDriver.c</Filename>
+    <Filename>ComponentName.c</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="BY_START">
+      <ProtocolCName>gEfiUnixIoProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="TO_START">
+      <ProtocolCName>gEfiUnixThunkProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="TO_START">
+      <ProtocolCName>gEfiDevicePathProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="ALWAYS_CONSUMED">
+      <ProtocolCName>gPcdProtocolGuid</ProtocolCName>
+    </Protocol>
+  </Protocols>
+  <Guids>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixVirtualDisksGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixPhysicalDisksGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixFileSystemGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixUgaGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixConsoleGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixMemoryGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixCPUModelGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="ALWAYS_CONSUMED">
+      <GuidCName>gEfiUnixCPUSpeedGuid</GuidCName>
+    </GuidCNames>
+  </Guids>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <DriverBinding>gUnixBusDriverBinding</DriverBinding>
+      <ComponentName>gUnixBusDriverComponentName</ComponentName>
+    </Extern>
+  </Externs>
+  <PcdCoded>
+    <PcdEntry PcdItemType="DYNAMIC">
+      <C_Name>PcdUnixConsole</C_Name>
+      <TokenSpaceGuidCName>gEfiEdkUnixPkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <HelpText>This PCD declares the title string of the text console window.
+        such as "My EFI Console".
+        The item type of this PCD can only be "DYNAMIC".</HelpText>
+    </PcdEntry>
+    <PcdEntry PcdItemType="DYNAMIC">
+      <C_Name>PcdUnixUga</C_Name>
+      <TokenSpaceGuidCName>gEfiEdkUnixPkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <HelpText>This PCD declares the resolutions for the UGA windows.
+        The item type of this PCD can only be "DYNAMIC".</HelpText>
+    </PcdEntry>
+    <PcdEntry PcdItemType="DYNAMIC">
+      <C_Name>PcdUnixFileSystem</C_Name>
+      <TokenSpaceGuidCName>gEfiEdkUnixPkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <HelpText>This PCD defines the windows directory who will be mounted as
+        harddisk in simulator.
+        The item type of this PCD can only be "DYNAMIC".</HelpText>
+    </PcdEntry>
+    <PcdEntry PcdItemType="DYNAMIC">
+      <C_Name>PcdUnixVirtualDisk</C_Name>
+      <TokenSpaceGuidCName>gEfiEdkUnixPkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <HelpText>This PCD defines the devices which use a file to emulate a hard disk or
+        removable media device
+        The item type if this PCD can only be "DYNAMIC".</HelpText>
+    </PcdEntry>
+    <PcdEntry PcdItemType="DYNAMIC">
+      <C_Name>PcdUnixPhysicalDisk</C_Name>
+      <TokenSpaceGuidCName>gEfiEdkUnixPkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <HelpText>This PCD defines physical disk which will be simualted as a
+        harddisk in simulator.
+        The item type of this PCD can only be "DYNAMIC".</HelpText>
+    </PcdEntry>
+    <PcdEntry PcdItemType="DYNAMIC">
+      <C_Name>PcdUnixCpuModel</C_Name>
+      <TokenSpaceGuidCName>gEfiEdkUnixPkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <HelpText>This PCD defines simulated CPU model string.
+        The item type of this PCD can only be "DYNAMIC".</HelpText>
+    </PcdEntry>
+    <PcdEntry PcdItemType="DYNAMIC">
+      <C_Name>PcdUnixCpuSpeed</C_Name>
+      <TokenSpaceGuidCName>gEfiEdkUnixPkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <HelpText>This PCD defines simulated CPU speed string.</HelpText>
+    </PcdEntry>
+    <PcdEntry PcdItemType="DYNAMIC">
+      <C_Name>PcdUnixMemorySize</C_Name>
+      <TokenSpaceGuidCName>gEfiEdkUnixPkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <HelpText>This PCD defines the size of simulated memory size.
+        The item type of this PCD can only be "DYNAMIC".</HelpText>
+    </PcdEntry>
+  </PcdCoded>
+</ModuleSurfaceArea>

EdkUnixPkg/Dxe/UnixThunk/Chipset/Metronome/Metronome.c

@@ -0,0 +1,129 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+
+  Metronome.c
+
+Abstract:
+
+  NT Emulation Metronome Architectural Protocol Driver as defined in DXE CIS
+
+--*/
+
+#include "Metronome.h"
+
+//
+// Global Variables
+//
+EFI_METRONOME_ARCH_PROTOCOL mMetronome = {
+  UnixMetronomeDriverWaitForTick,
+  TICK_PERIOD
+};
+
+//
+// Worker Functions
+//
+
+EFI_STATUS
+EFIAPI
+UnixMetronomeDriverWaitForTick (
+  IN EFI_METRONOME_ARCH_PROTOCOL  *This,
+  IN UINT32                       TickNumber
+  )
+/*++
+
+Routine Description:
+
+  The WaitForTick() function waits for the number of ticks specified by
+  TickNumber from a known time source in the platform.  If TickNumber of
+  ticks are detected, then EFI_SUCCESS is returned.  The actual time passed
+  between entry of this function and the first tick is between 0 and
+  TickPeriod 100 nS units.  If you want to guarantee that at least TickPeriod
+  time has elapsed, wait for two ticks.  This function waits for a hardware
+  event to determine when a tick occurs.  It is possible for interrupt
+  processing, or exception processing to interrupt the execution of the
+  WaitForTick() function.  Depending on the hardware source for the ticks, it
+  is possible for a tick to be missed.  This function cannot guarantee that
+  ticks will not be missed.  If a timeout occurs waiting for the specified
+  number of ticks, then EFI_TIMEOUT is returned.
+
+Arguments:
+
+  This       - The EFI_METRONOME_ARCH_PROTOCOL instance.
+  TickNumber - Number of ticks to wait.
+
+Returns:
+
+  EFI_SUCCESS - The wait for the number of ticks specified by TickNumber
+                succeeded.
+
+--*/
+{
+  UINT64  SleepTime;
+
+  //
+  // Calculate the time to sleep.  Win API smallest unit to sleep is 1 millisec
+  // Tick Period is in 100ns units, divide by 10000 to convert to ms
+  //
+  SleepTime = DivU64x32 (MultU64x32 ((UINT64) TickNumber, TICK_PERIOD) + 9999, 10000);
+  gUnix->Sleep ((UINT32) SleepTime);
+
+  return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+EFIAPI
+UnixMetronomeDriverInitialize (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  Initialize the Metronome Architectural Protocol driver
+
+Arguments:
+
+  ImageHandle - ImageHandle of the loaded driver
+
+
+  SystemTable - Pointer to the System Table
+
+Returns:
+
+  EFI_SUCCESS           - Metronome Architectural Protocol created
+
+  EFI_OUT_OF_RESOURCES  - Not enough resources available to initialize driver.
+
+  EFI_DEVICE_ERROR      - A device error occured attempting to initialize the driver.
+
+--*/
+{
+  EFI_STATUS  Status;
+  EFI_HANDLE  Handle;
+
+
+  //
+  // Install the Metronome Architectural Protocol onto a new handle
+  //
+  Handle = NULL;
+  Status = gBS->InstallProtocolInterface (
+                  &Handle,
+                  &gEfiMetronomeArchProtocolGuid,
+                  EFI_NATIVE_INTERFACE,
+                  &mMetronome
+                  );
+
+  return Status;
+}

EdkUnixPkg/Dxe/UnixThunk/Chipset/Metronome/Metronome.dxs

@@ -0,0 +1,27 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Metronome.dxs
+
+Abstract:
+
+  Dependency expression source file.
+  
+--*/  
+
+#include <AutoGen.h>
+#include <DxeDepex.h>
+
+DEPENDENCY_START
+  TRUE
+DEPENDENCY_END

EdkUnixPkg/Dxe/UnixThunk/Chipset/Metronome/Metronome.h

@@ -0,0 +1,84 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Metronome.h
+
+Abstract:
+
+  NT Emulation Metronome Architectural Protocol Driver as defined in DXE CIS
+
+--*/
+
+#ifndef _UNIX_THUNK_METRONOME_H_
+#define _UNIX_THUNK_METRONOME_H_
+
+
+
+//
+// Period of on tick in 100 nanosecond units
+//
+#define TICK_PERIOD 2000
+
+//
+// Function Prototypes
+//
+
+EFI_STATUS
+EFIAPI
+UnixMetronomeDriverInitialize (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  ImageHandle - TODO: add argument description
+  SystemTable - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixMetronomeDriverWaitForTick (
+  IN EFI_METRONOME_ARCH_PROTOCOL  *This,
+  IN UINT32                       TickNumber
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This        - TODO: add argument description
+  TickNumber  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#endif

EdkUnixPkg/Dxe/UnixThunk/Chipset/Metronome/Metronome.msa

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>Metronome</ModuleName>
+    <ModuleType>DXE_DRIVER</ModuleType>
+    <GuidValue>f348f6fe-8985-11db-b4c3-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>Unix Emulation Metronome Architectural Protocol Driver as defined in DXE CIS</Abstract>
+    <Description>
+      This metronome module simulates metronome by Sleep WinAPI.
+    </Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>Metronome</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UnixLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>Metronome.c</Filename>
+    <Filename>Metronome.h</Filename>
+    <Filename>Metronome.dxs</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="ALWAYS_PRODUCED">
+      <ProtocolCName>gEfiMetronomeArchProtocolGuid</ProtocolCName>
+    </Protocol>
+  </Protocols>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <ModuleEntryPoint>UnixMetronomeDriverInitialize</ModuleEntryPoint>
+    </Extern>
+  </Externs>
+</ModuleSurfaceArea>

EdkUnixPkg/Dxe/UnixThunk/Chipset/RealTimeClock/RealTimeClock.c

@@ -0,0 +1,345 @@
+/*++
+
+Copyright (c) 2004 - 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  RealTimeClock.c
+
+Abstract:
+
+  NT Emulation Architectural Protocol Driver as defined in Tiano
+
+--*/
+
+BOOLEAN
+DayValid (
+  IN  EFI_TIME  *Time
+  );
+
+BOOLEAN
+IsLeapYear (
+  IN EFI_TIME   *Time
+  );
+
+EFI_STATUS
+RtcTimeFieldsValid (
+  IN EFI_TIME *Time
+  );
+
+EFI_STATUS
+EFIAPI
+InitializeRealTimeClock (
+  IN EFI_HANDLE                          ImageHandle,
+  IN EFI_SYSTEM_TABLE                    *SystemTable
+  );
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixGetTime (
+  OUT EFI_TIME                                 * Time,
+  OUT EFI_TIME_CAPABILITIES                    * Capabilities OPTIONAL
+  )
+/*++
+
+Routine Description:
+  Service routine for RealTimeClockInstance->GetTime 
+
+Arguments:
+
+  Time          - A pointer to storage that will receive a snapshot of the current time.
+
+  Capabilities  - A pointer to storage that will receive the capabilities of the real time clock
+                  in the platform. This includes the real time clock's resolution and accuracy.  
+                  All reported device capabilities are rounded up.  This is an OPTIONAL argument.
+
+Returns:
+
+  EFI_SUCEESS   - The underlying GetSystemTime call occurred and returned
+                  Note that in the NT32 emulation, the GetSystemTime call has no return value
+                  thus you will always receive a EFI_SUCCESS on this.
+
+--*/
+// TODO:    EFI_INVALID_PARAMETER - add return value to function comment
+{
+
+  //
+  // Check parameter for null pointer
+  //
+  if (Time == NULL) {
+    return EFI_INVALID_PARAMETER;
+
+  }
+
+  gUnix->GetLocalTime (Time);
+
+  if (Capabilities != NULL) {
+    Capabilities->Resolution  = 1;
+    Capabilities->Accuracy    = 50000000;
+    Capabilities->SetsToZero  = FALSE;
+  }
+
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSetTime (
+  IN EFI_TIME   *Time
+  )
+/*++
+
+Routine Description:
+  Service routine for RealTimeClockInstance->SetTime 
+
+Arguments:
+
+  Time          - A pointer to storage containing the time and date information to
+                  program into the real time clock.
+
+Returns:
+
+  EFI_SUCEESS           - The operation completed successfully.
+                  
+  EFI_INVALID_PARAMETER - One of the fields in Time is out of range.
+
+  EFI_DEVICE_ERROR      - The operation could not be complete due to a device error.
+
+--*/
+// TODO:    EFI_SUCCESS - add return value to function comment
+{
+  EFI_STATUS            Status;
+
+  if (Time == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+  //
+  // Make sure that the time fields are valid
+  //
+  Status = RtcTimeFieldsValid (Time);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+  return EFI_UNSUPPORTED;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixGetWakeupTime (
+  OUT BOOLEAN        *Enabled,
+  OUT BOOLEAN        *Pending,
+  OUT EFI_TIME       *Time
+  )
+/*++
+
+Routine Description:
+  Service routine for RealTimeClockInstance->GetWakeupTime
+
+Arguments:
+  This          - Indicates the protocol instance structure.
+
+  Enabled       - Indicates if the alarm is currently enabled or disabled.
+
+  Pending       - Indicates if the alarm signal is pending and requires
+                  acknowledgement.
+
+  Time          - The current alarm setting.
+
+Returns:
+
+  EFI_SUCEESS           - The operation completed successfully.
+                  
+  EFI_DEVICE_ERROR      - The operation could not be complete due to a device error.
+
+  EFI_UNSUPPORTED       - The operation is not supported on this platform.
+
+--*/
+{
+  return EFI_UNSUPPORTED;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSetWakeupTime (
+  IN BOOLEAN      Enable,
+  OUT EFI_TIME    *Time
+  )
+/*++
+
+Routine Description:
+  Service routine for RealTimeClockInstance->SetWakeupTime
+
+Arguments:
+
+  Enabled       - Enable or disable the wakeup alarm.
+
+  Time          - If enable is TRUE, the time to set the wakup alarm for.
+                  If enable is FALSE, then this parameter is optional, and
+                  may be NULL.
+
+Returns:
+
+  EFI_SUCEESS           - The operation completed successfully.
+                  
+  EFI_DEVICE_ERROR      - The operation could not be complete due to a device error.
+
+  EFI_INVALID_PARAMETER - A field in Time is out of range.
+
+  EFI_UNSUPPORTED       - The operation is not supported on this platform.
+
+--*/
+{
+  return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+EFIAPI
+InitializeRealTimeClock (
+  IN EFI_HANDLE                            ImageHandle,
+  IN EFI_SYSTEM_TABLE                      *SystemTable
+  )
+/*++
+
+Routine Description:
+  Install Real Time Clock Protocol 
+
+Arguments:
+  ImageHandle - Image Handle
+  SystemTable - Pointer to system table
+
+Returns:
+
+  EFI_SUCEESS - Real Time Clock Services are installed into the Runtime Services Table
+
+--*/
+{
+  EFI_STATUS  Status;
+  EFI_HANDLE  Handle;
+
+  SystemTable->RuntimeServices->GetTime       = UnixGetTime;
+  SystemTable->RuntimeServices->SetTime       = UnixSetTime;
+  SystemTable->RuntimeServices->GetWakeupTime = UnixGetWakeupTime;
+  SystemTable->RuntimeServices->SetWakeupTime = UnixSetWakeupTime;
+
+  Handle = NULL;
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &Handle,
+                  &gEfiRealTimeClockArchProtocolGuid,
+                  NULL,
+                  NULL
+                  );
+  return Status;
+}
+
+EFI_STATUS
+RtcTimeFieldsValid (
+  IN EFI_TIME *Time
+  )
+/*++
+
+Routine Description:
+
+  Arguments:
+ 
+  Returns: 
+--*/
+// TODO:    Time - add argument and description to function comment
+// TODO:    EFI_INVALID_PARAMETER - add return value to function comment
+// TODO:    EFI_SUCCESS - add return value to function comment
+{
+  if (Time->Year < 1998 ||
+      Time->Year > 2099 ||
+      Time->Month < 1 ||
+      Time->Month > 12 ||
+      (!DayValid (Time)) ||
+      Time->Hour > 23 ||
+      Time->Minute > 59 ||
+      Time->Second > 59 ||
+      Time->Nanosecond > 999999999 ||
+      (!(Time->TimeZone == EFI_UNSPECIFIED_TIMEZONE || (Time->TimeZone >= -1440 && Time->TimeZone <= 1440))) ||
+      (Time->Daylight & (~(EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT)))
+      ) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  return EFI_SUCCESS;
+}
+
+BOOLEAN
+DayValid (
+  IN  EFI_TIME  *Time
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Time  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+
+  static const INTN  DayOfMonth[12] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+
+  if (Time->Day < 1 ||
+      Time->Day > DayOfMonth[Time->Month - 1] ||
+      (Time->Month == 2 && (!IsLeapYear (Time) && Time->Day > 28))
+      ) {
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+BOOLEAN
+IsLeapYear (
+  IN EFI_TIME   *Time
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Time  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  if (Time->Year % 4 == 0) {
+    if (Time->Year % 100 == 0) {
+      if (Time->Year % 400 == 0) {
+        return TRUE;
+      } else {
+        return FALSE;
+      }
+    } else {
+      return TRUE;
+    }
+  } else {
+    return FALSE;
+  }
+}

EdkUnixPkg/Dxe/UnixThunk/Chipset/RealTimeClock/RealTimeClock.dxs

@@ -0,0 +1,27 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  RealTimeClock.dxs
+
+Abstract:
+
+  Dependency expression source file.
+  
+--*/  
+
+#include <AutoGen.h>
+#include <DxeDepex.h>
+
+DEPENDENCY_START
+  TRUE
+DEPENDENCY_END

EdkUnixPkg/Dxe/UnixThunk/Chipset/RealTimeClock/RealTimeClock.msa

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>RealTimeClock</ModuleName>
+    <ModuleType>DXE_DRIVER</ModuleType>
+    <GuidValue>f3552032-8985-11db-8429-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>Unix Emulation Real time clock Architectural Protocol Driver as defined in TIANO</Abstract>
+    <Description>
+      This real time clock module simulates virtual device by time WinAPI.
+    </Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>RealTimeClock</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UnixLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>RealTimeClock.c</Filename>
+    <Filename>RealTimeClock.dxs</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="ALWAYS_PRODUCED">
+      <ProtocolCName>gEfiRealTimeClockArchProtocolGuid</ProtocolCName>
+    </Protocol>
+  </Protocols>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <ModuleEntryPoint>InitializeRealTimeClock</ModuleEntryPoint>
+    </Extern>
+  </Externs>
+</ModuleSurfaceArea>

EdkUnixPkg/Dxe/UnixThunk/Chipset/Reset/Reset.c

@@ -0,0 +1,119 @@
+/*++
+
+Copyright (c) 2004 - 2005, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+ Reset.c
+
+Abstract:
+
+  Reset Architectural Protocol as defined in Tiano under NT Emulation
+
+--*/
+
+EFI_STATUS
+EFIAPI
+InitializeUnixReset (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  );
+
+STATIC
+VOID
+EFIAPI
+UnixResetSystem (
+  IN EFI_RESET_TYPE   ResetType,
+  IN EFI_STATUS       ResetStatus,
+  IN UINTN            DataSize,
+  IN CHAR16           *ResetData OPTIONAL
+  );
+
+EFI_STATUS
+EFIAPI
+InitializeUnixReset (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+/*++
+
+Routine Description:
+
+
+Arguments:
+
+  ImageHandle of the loaded driver
+  Pointer to the System Table
+
+Returns:
+
+  Status
+--*/
+// TODO:    SystemTable - add argument and description to function comment
+{
+  EFI_STATUS  Status;
+  EFI_HANDLE  Handle;
+
+  SystemTable->RuntimeServices->ResetSystem = UnixResetSystem;
+
+  Handle = NULL;
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &Handle,
+                  &gEfiResetArchProtocolGuid,
+                  NULL,
+                  NULL
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  return Status;
+}
+
+STATIC
+VOID
+EFIAPI
+UnixResetSystem (
+  IN EFI_RESET_TYPE   ResetType,
+  IN EFI_STATUS       ResetStatus,
+  IN UINTN            DataSize,
+  IN CHAR16           *ResetData OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  ResetType   - TODO: add argument description
+  ResetStatus - TODO: add argument description
+  DataSize    - TODO: add argument description
+  ResetData   - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  //
+  // BUGBUG Need to kill all console windows later
+  //
+  //
+  // Discard ResetType, always return 0 as exit code
+  //
+  gUnix->Exit (0);
+
+  //
+  // Should never go here
+  //
+  while (1)
+    ;
+}

EdkUnixPkg/Dxe/UnixThunk/Chipset/Reset/Reset.dxs

@@ -0,0 +1,27 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Reset.dxs
+
+Abstract:
+
+  Dependency expression source file.
+  
+--*/  
+
+#include <AutoGen.h>
+#include <DxeDepex.h>
+
+DEPENDENCY_START
+  TRUE
+DEPENDENCY_END

EdkUnixPkg/Dxe/UnixThunk/Chipset/Reset/Reset.msa

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>Reset</ModuleName>
+    <ModuleType>DXE_DRIVER</ModuleType>
+    <GuidValue>f3613084-8985-11db-8c26-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>Unix Emulation Reset Architectural Protocol Driver as defined in TIANO</Abstract>
+    <Description>
+      This Reset module simulates system reset by process exit on NT.
+    </Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>Reset</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UnixLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>Reset.c</Filename>
+    <Filename>Reset.dxs</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="ALWAYS_PRODUCED">
+      <ProtocolCName>gEfiResetArchProtocolGuid</ProtocolCName>
+    </Protocol>
+  </Protocols>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <ModuleEntryPoint>InitializeUnixReset</ModuleEntryPoint>
+    </Extern>
+  </Externs>
+</ModuleSurfaceArea>

EdkUnixPkg/Dxe/UnixThunk/Chipset/Timer/Timer.c

@@ -0,0 +1,358 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Timer.c
+
+Abstract:
+
+  NT Emulation Timer Architectural Protocol Driver as defined in DXE CIS
+
+  This Timer module uses an NT Thread to simulate the timer-tick driven
+  timer service.  In the future, the Thread creation should possibly be 
+  abstracted by the CPU architectural protocol
+
+--*/
+
+#include "Timer.h"
+
+//
+// Pointer to the CPU Architectural Protocol instance
+//
+EFI_CPU_ARCH_PROTOCOL   *mCpu;
+
+//
+// The Timer Architectural Protocol that this driver produces
+//
+EFI_TIMER_ARCH_PROTOCOL mTimer = {
+  UnixTimerDriverRegisterHandler,
+  UnixTimerDriverSetTimerPeriod,
+  UnixTimerDriverGetTimerPeriod,
+  UnixTimerDriverGenerateSoftInterrupt
+};
+
+//
+// The notification function to call on every timer interrupt
+//
+EFI_TIMER_NOTIFY        mTimerNotifyFunction = NULL;
+
+//
+// The current period of the timer interrupt
+//
+UINT64                  mTimerPeriod;
+
+//
+// The timer value from the last timer interrupt
+//
+UINT32                  mNtLastTick;
+
+VOID
+TimerCallback (UINT64 DeltaMs)
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  wTimerID  - TODO: add argument description
+  msg       - TODO: add argument description
+  dwUser    - TODO: add argument description
+  dw1       - TODO: add argument description
+  dw2       - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  EFI_TPL           OriginalTPL;
+  EFI_TIMER_NOTIFY  CallbackFunction;
+
+
+  OriginalTPL = gBS->RaiseTPL (EFI_TPL_HIGH_LEVEL);
+
+  CallbackFunction = mTimerNotifyFunction;
+
+  //
+  // Only invoke the callback function if a Non-NULL handler has been
+  // registered. Assume all other handlers are legal.
+  //
+  if (CallbackFunction != NULL) {
+    CallbackFunction ((UINT64) (DeltaMs * 10000));
+  }
+
+  gBS->RestoreTPL (OriginalTPL);
+
+}
+
+EFI_STATUS
+EFIAPI
+UnixTimerDriverRegisterHandler (
+  IN EFI_TIMER_ARCH_PROTOCOL           *This,
+  IN EFI_TIMER_NOTIFY                  NotifyFunction
+  )
+/*++
+
+Routine Description:
+
+  This function registers the handler NotifyFunction so it is called every time 
+  the timer interrupt fires.  It also passes the amount of time since the last 
+  handler call to the NotifyFunction.  If NotifyFunction is NULL, then the 
+  handler is unregistered.  If the handler is registered, then EFI_SUCCESS is 
+  returned.  If the CPU does not support registering a timer interrupt handler, 
+  then EFI_UNSUPPORTED is returned.  If an attempt is made to register a handler 
+  when a handler is already registered, then EFI_ALREADY_STARTED is returned.  
+  If an attempt is made to unregister a handler when a handler is not registered, 
+  then EFI_INVALID_PARAMETER is returned.  If an error occurs attempting to 
+  register the NotifyFunction with the timer interrupt, then EFI_DEVICE_ERROR 
+  is returned.
+
+Arguments:
+
+  This           - The EFI_TIMER_ARCH_PROTOCOL instance.
+
+  NotifyFunction - The function to call when a timer interrupt fires.  This 
+                   function executes at TPL_HIGH_LEVEL.  The DXE Core will 
+                   register a handler for the timer interrupt, so it can know 
+                   how much time has passed.  This information is used to 
+                   signal timer based events.  NULL will unregister the handler.
+
+Returns: 
+
+  EFI_SUCCESS           - The timer handler was registered.
+
+  EFI_UNSUPPORTED       - The platform does not support timer interrupts.
+
+  EFI_ALREADY_STARTED   - NotifyFunction is not NULL, and a handler is already 
+                          registered.
+
+  EFI_INVALID_PARAMETER - NotifyFunction is NULL, and a handler was not 
+                          previously registered.
+
+  EFI_DEVICE_ERROR      - The timer handler could not be registered.
+
+--*/
+{
+  //
+  // Check for invalid parameters
+  //
+  if (NotifyFunction == NULL && mTimerNotifyFunction == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  if (NotifyFunction != NULL && mTimerNotifyFunction != NULL) {
+    return EFI_ALREADY_STARTED;
+  }
+
+  if (NotifyFunction == NULL) {
+    /* Disable timer.  */
+    gUnix->SetTimer (0, TimerCallback);
+  } else if (mTimerNotifyFunction == NULL) {
+    /* Enable Timer.  */
+    gUnix->SetTimer (mTimerPeriod * 10, TimerCallback);
+  }
+  mTimerNotifyFunction = NotifyFunction;
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+UnixTimerDriverSetTimerPeriod (
+  IN EFI_TIMER_ARCH_PROTOCOL  *This,
+  IN UINT64                   TimerPeriod
+  )
+/*++
+
+Routine Description:
+
+  This function adjusts the period of timer interrupts to the value specified 
+  by TimerPeriod.  If the timer period is updated, then the selected timer 
+  period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned.  If 
+  the timer hardware is not programmable, then EFI_UNSUPPORTED is returned.  
+  If an error occurs while attempting to update the timer period, then the 
+  timer hardware will be put back in its state prior to this call, and 
+  EFI_DEVICE_ERROR is returned.  If TimerPeriod is 0, then the timer interrupt 
+  is disabled.  This is not the same as disabling the CPU's interrupts.  
+  Instead, it must either turn off the timer hardware, or it must adjust the 
+  interrupt controller so that a CPU interrupt is not generated when the timer 
+  interrupt fires. 
+
+Arguments:
+
+  This        - The EFI_TIMER_ARCH_PROTOCOL instance.
+
+  TimerPeriod - The rate to program the timer interrupt in 100 nS units.  If 
+                the timer hardware is not programmable, then EFI_UNSUPPORTED is 
+                returned.  If the timer is programmable, then the timer period 
+                will be rounded up to the nearest timer period that is supported 
+                by the timer hardware.  If TimerPeriod is set to 0, then the 
+                timer interrupts will be disabled.
+
+Returns: 
+
+  EFI_SUCCESS      - The timer period was changed.
+
+  EFI_UNSUPPORTED  - The platform cannot change the period of the timer interrupt.
+
+  EFI_DEVICE_ERROR - The timer period could not be changed due to a device error.
+
+--*/
+{
+
+  //
+  // If TimerPeriod is 0, then the timer thread should be canceled
+  // If the TimerPeriod is valid, then create and/or adjust the period of the timer thread
+  //
+  if (TimerPeriod == 0
+      || ((TimerPeriod > TIMER_MINIMUM_VALUE)
+	  && (TimerPeriod < TIMER_MAXIMUM_VALUE))) {
+    mTimerPeriod = TimerPeriod;
+
+    gUnix->SetTimer (TimerPeriod * 10, TimerCallback);
+  }
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+UnixTimerDriverGetTimerPeriod (
+  IN EFI_TIMER_ARCH_PROTOCOL            *This,
+  OUT UINT64                            *TimerPeriod
+  )
+/*++
+
+Routine Description:
+
+  This function retrieves the period of timer interrupts in 100 ns units, 
+  returns that value in TimerPeriod, and returns EFI_SUCCESS.  If TimerPeriod 
+  is NULL, then EFI_INVALID_PARAMETER is returned.  If a TimerPeriod of 0 is 
+  returned, then the timer is currently disabled.
+
+Arguments:
+
+  This        - The EFI_TIMER_ARCH_PROTOCOL instance.
+
+  TimerPeriod - A pointer to the timer period to retrieve in 100 ns units.  If 
+                0 is returned, then the timer is currently disabled.
+
+Returns: 
+
+  EFI_SUCCESS           - The timer period was returned in TimerPeriod.
+
+  EFI_INVALID_PARAMETER - TimerPeriod is NULL.
+
+--*/
+{
+  if (TimerPeriod == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *TimerPeriod = mTimerPeriod;
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+UnixTimerDriverGenerateSoftInterrupt (
+  IN EFI_TIMER_ARCH_PROTOCOL  *This
+  )
+/*++
+
+Routine Description:
+
+  This function generates a soft timer interrupt. If the platform does not support soft 
+  timer interrupts, then EFI_UNSUPPORTED is returned. Otherwise, EFI_SUCCESS is returned. 
+  If a handler has been registered through the EFI_TIMER_ARCH_PROTOCOL.RegisterHandler() 
+  service, then a soft timer interrupt will be generated. If the timer interrupt is 
+  enabled when this service is called, then the registered handler will be invoked. The 
+  registered handler should not be able to distinguish a hardware-generated timer 
+  interrupt from a software-generated timer interrupt.
+
+Arguments:
+
+  This  -  The EFI_TIMER_ARCH_PROTOCOL instance.
+
+Returns: 
+
+  EFI_SUCCESS       - The soft timer interrupt was generated.
+
+  EFI_UNSUPPORTEDT  - The platform does not support the generation of soft timer interrupts.
+
+--*/
+{
+  return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+EFIAPI
+UnixTimerDriverInitialize (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  Initialize the Timer Architectural Protocol driver
+
+Arguments:
+
+  ImageHandle - ImageHandle of the loaded driver
+
+  SystemTable - Pointer to the System Table
+
+Returns:
+
+  EFI_SUCCESS           - Timer Architectural Protocol created
+
+  EFI_OUT_OF_RESOURCES  - Not enough resources available to initialize driver.
+  
+  EFI_DEVICE_ERROR      - A device error occured attempting to initialize the driver.
+
+--*/
+{
+  EFI_STATUS  Status;
+  EFI_HANDLE  Handle;
+
+  //
+  // Make sure the Timer Architectural Protocol is not already installed in the system
+  //
+  ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiTimerArchProtocolGuid);
+
+  //
+  // Get the CPU Architectural Protocol instance
+  //
+  Status = gBS->LocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (void *)&mCpu);
+  ASSERT_EFI_ERROR (Status);
+
+  //
+  // Install the Timer Architectural Protocol onto a new handle
+  //
+  Handle = NULL;
+  Status = gBS->InstallProtocolInterface (
+                  &Handle,
+                  &gEfiTimerArchProtocolGuid,
+                  EFI_NATIVE_INTERFACE,
+                  &mTimer
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  return EFI_SUCCESS;
+}

EdkUnixPkg/Dxe/UnixThunk/Chipset/Timer/Timer.dxs

@@ -0,0 +1,28 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Timer.dxs
+
+Abstract:
+
+  Dependency expression source file.
+  
+--*/ 
+
+
+#include <AutoGen.h>
+#include <DxeDepex.h>
+
+DEPENDENCY_START
+  EFI_CPU_ARCH_PROTOCOL_GUID
+DEPENDENCY_END

EdkUnixPkg/Dxe/UnixThunk/Chipset/Timer/Timer.h

@@ -0,0 +1,162 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Timer.h
+
+Abstract:
+
+  NT Emulation Architectural Protocol Driver as defined in Tiano.
+  This Timer module uses an NT Thread to simulate the timer-tick driven
+  timer service.
+
+--*/
+
+#ifndef _TIMER_H_
+#define _TIMER_H_
+
+
+
+
+//
+// Legal timer value range in 100 ns units
+//
+#define TIMER_MINIMUM_VALUE 0
+#define TIMER_MAXIMUM_VALUE (0x100000000 - 1)
+
+//
+// Default timer value in 100 ns units (10 ms)
+//
+#define DEFAULT_TIMER_TICK_DURATION 100000
+
+//
+// Function Prototypes
+//
+EFI_STATUS
+EFIAPI
+UnixTimerDriverInitialize (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  ImageHandle - TODO: add argument description
+  SystemTable - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixTimerDriverRegisterHandler (
+  IN EFI_TIMER_ARCH_PROTOCOL  *This,
+  IN EFI_TIMER_NOTIFY         NotifyFunction
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This            - TODO: add argument description
+  NotifyFunction  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixTimerDriverSetTimerPeriod (
+  IN EFI_TIMER_ARCH_PROTOCOL  *This,
+  IN UINT64                   TimerPeriod
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This        - TODO: add argument description
+  TimerPeriod - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixTimerDriverGetTimerPeriod (
+  IN EFI_TIMER_ARCH_PROTOCOL   *This,
+  OUT UINT64                   *TimerPeriod
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This        - TODO: add argument description
+  TimerPeriod - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+UnixTimerDriverGenerateSoftInterrupt (
+  IN EFI_TIMER_ARCH_PROTOCOL  *This
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This  - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+;
+
+#endif

EdkUnixPkg/Dxe/UnixThunk/Chipset/Timer/Timer.msa

@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>Timer</ModuleName>
+    <ModuleType>DXE_DRIVER</ModuleType>
+    <GuidValue>f36d49b4-8985-11db-809b-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>Unix Emulation Timer Architectural Protocol Driver as defined in DXE CIS</Abstract>
+    <Description>
+      This Timer module uses an NT Thread to simulate the timer-tick driven
+      timer service.  In the future, the Thread creation should possibly be 
+      abstracted by the CPU architectural protocol
+    </Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>Timer</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UnixLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>Timer.h</Filename>
+    <Filename>Timer.c</Filename>
+    <Filename>Timer.dxs</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="ALWAYS_PRODUCED">
+      <ProtocolCName>gEfiTimerArchProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="ALWAYS_CONSUMED">
+      <ProtocolCName>gEfiCpuArchProtocolGuid</ProtocolCName>
+    </Protocol>
+  </Protocols>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <ModuleEntryPoint>UnixTimerDriverInitialize</ModuleEntryPoint>
+    </Extern>
+  </Externs>
+</ModuleSurfaceArea>

EdkUnixPkg/Dxe/UnixThunk/Cpu/Cpu.c

@@ -0,0 +1,730 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Cpu.c
+
+Abstract:
+
+  Unix Emulation Architectural Protocol Driver as defined in Tiano.
+  This CPU module abstracts the interrupt subsystem of a platform and
+  the CPU-specific setjump/long pair.  Other services are not implemented
+  in this driver.
+
+--*/
+
+#include "CpuDriver.h"
+
+#define EFI_CPU_DATA_MAXIMUM_LENGTH 0x100
+
+EFI_STATUS
+EFIAPI
+InitializeCpu (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  );
+
+VOID
+EFIAPI
+UnixIoProtocolNotifyFunction (
+  IN EFI_EVENT                Event,
+  IN VOID                     *Context
+  );
+
+typedef union {
+  EFI_CPU_DATA_RECORD *DataRecord;
+  UINT8               *Raw;
+} EFI_CPU_DATA_RECORD_BUFFER;
+
+EFI_SUBCLASS_TYPE1_HEADER mCpuDataRecordHeader = {
+  EFI_PROCESSOR_SUBCLASS_VERSION,       // Version
+  sizeof (EFI_SUBCLASS_TYPE1_HEADER),   // Header Size
+  0,                                    // Instance, Initialize later
+  EFI_SUBCLASS_INSTANCE_NON_APPLICABLE, // SubInstance
+  0                                     // RecordType, Initialize later
+};
+
+//
+// Service routines for the driver
+//
+STATIC
+EFI_STATUS
+EFIAPI
+UnixFlushCpuDataCache (
+  IN EFI_CPU_ARCH_PROTOCOL  *This,
+  IN EFI_PHYSICAL_ADDRESS   Start,
+  IN UINT64                 Length,
+  IN EFI_CPU_FLUSH_TYPE     FlushType
+  )
+/*++
+
+Routine Description:
+
+  This routine would provide support for flushing the CPU data cache.
+  In the case of NT emulation environment, this flushing is not necessary and
+  is thus not implemented.
+
+Arguments:
+
+  Pointer to CPU Architectural Protocol interface
+  Start adddress in memory to flush
+  Length of memory to flush
+  Flush type
+
+Returns:
+
+  Status
+    EFI_SUCCESS
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    FlushType - add argument and description to function comment
+// TODO:    EFI_UNSUPPORTED - add return value to function comment
+{
+  if (FlushType == EfiCpuFlushTypeWriteBackInvalidate) {
+    //
+    // Only WB flush is supported. We actually need do nothing on NT emulator
+    // environment. Classify this to follow EFI spec
+    //
+    return EFI_SUCCESS;
+  }
+  //
+  // Other flush types are not supported by NT emulator
+  //
+  return EFI_UNSUPPORTED;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixEnableInterrupt (
+  IN EFI_CPU_ARCH_PROTOCOL  *This
+  )
+/*++
+
+Routine Description:
+
+  This routine provides support for emulation of the interrupt enable of the
+  the system.  For our purposes, CPU enable is just a BOOLEAN that the Timer 
+  Architectural Protocol observes in order to defer behaviour while in its
+  emulated interrupt, or timer tick.
+
+Arguments:
+
+  Pointer to CPU Architectural Protocol interface
+
+Returns:
+
+  Status
+    EFI_SUCCESS
+
+--*/
+// TODO:    This - add argument and description to function comment
+{
+  CPU_ARCH_PROTOCOL_PRIVATE *Private;
+
+  Private                 = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
+  Private->InterruptState = TRUE;
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixDisableInterrupt (
+  IN EFI_CPU_ARCH_PROTOCOL  *This
+  )
+/*++
+
+Routine Description:
+
+  This routine provides support for emulation of the interrupt disable of the
+  the system.  For our purposes, CPU enable is just a BOOLEAN that the Timer 
+  Architectural Protocol observes in order to defer behaviour while in its
+  emulated interrupt, or timer tick.
+
+Arguments:
+
+  Pointer to CPU Architectural Protocol interface
+
+Returns:
+
+  Status
+    EFI_SUCCESS
+
+--*/
+// TODO:    This - add argument and description to function comment
+{
+  CPU_ARCH_PROTOCOL_PRIVATE *Private;
+
+  Private                 = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
+  Private->InterruptState = FALSE;
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixGetInterruptState (
+  IN EFI_CPU_ARCH_PROTOCOL  *This,
+  OUT BOOLEAN               *State
+  )
+/*++
+
+Routine Description:
+
+  This routine provides support for emulation of the interrupt disable of the
+  the system.  For our purposes, CPU enable is just a BOOLEAN that the Timer 
+  Architectural Protocol observes in order to defer behaviour while in its
+  emulated interrupt, or timer tick.
+
+Arguments:
+
+  Pointer to CPU Architectural Protocol interface
+
+Returns:
+
+  Status
+    EFI_SUCCESS
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    State - add argument and description to function comment
+// TODO:    EFI_INVALID_PARAMETER - add return value to function comment
+{
+  CPU_ARCH_PROTOCOL_PRIVATE *Private;
+
+  if (State == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
+  *State  = Private->InterruptState;
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixInit (
+  IN EFI_CPU_ARCH_PROTOCOL  *This,
+  IN EFI_CPU_INIT_TYPE      InitType
+  )
+/*++
+
+Routine Description:
+
+  This routine would support generation of a CPU INIT.  At 
+  present, this code does not provide emulation.  
+
+Arguments:
+
+  Pointer to CPU Architectural Protocol interface
+  INIT Type
+
+Returns:
+
+  Status
+    EFI_UNSUPPORTED - not yet implemented
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    InitType - add argument and description to function comment
+{
+  CPU_ARCH_PROTOCOL_PRIVATE *Private;
+
+  Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
+  return EFI_UNSUPPORTED;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixRegisterInterruptHandler (
+  IN EFI_CPU_ARCH_PROTOCOL      *This,
+  IN EFI_EXCEPTION_TYPE         InterruptType,
+  IN EFI_CPU_INTERRUPT_HANDLER  InterruptHandler
+  )
+/*++
+
+Routine Description:
+
+  This routine would support registration of an interrupt handler.  At 
+  present, this code does not provide emulation.  
+
+Arguments:
+
+  Pointer to CPU Architectural Protocol interface
+  Pointer to interrupt handlers
+  Interrupt type
+
+Returns:
+
+  Status
+    EFI_UNSUPPORTED - not yet implemented
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    InterruptType - add argument and description to function comment
+// TODO:    InterruptHandler - add argument and description to function comment
+{
+  CPU_ARCH_PROTOCOL_PRIVATE *Private;
+
+  //
+  // Do parameter checking for EFI spec conformance
+  //
+  if (InterruptType < 0 || InterruptType > 0xff) {
+    return EFI_UNSUPPORTED;
+  }
+  //
+  // Do nothing for Nt32 emulation
+  //
+  Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
+  return EFI_UNSUPPORTED;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixGetTimerValue (
+  IN  EFI_CPU_ARCH_PROTOCOL *This,
+  IN  UINT32                TimerIndex,
+  OUT UINT64                *TimerValue,
+  OUT UINT64                *TimerPeriod OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+  This routine would support querying of an on-CPU timer.  At present, 
+  this code does not provide timer emulation.  
+
+Arguments:
+
+  This        - Pointer to CPU Architectural Protocol interface
+  TimerIndex  - Index of given CPU timer
+  TimerValue  - Output of the timer
+  TimerPeriod - Output of the timer period
+
+Returns:
+
+  EFI_UNSUPPORTED       - not yet implemented
+  EFI_INVALID_PARAMETER - TimeValue is NULL
+
+--*/
+{
+  if (TimerValue == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+  
+  //
+  // No timer supported
+  //
+  return EFI_UNSUPPORTED;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSetMemoryAttributes (
+  IN EFI_CPU_ARCH_PROTOCOL  *This,
+  IN EFI_PHYSICAL_ADDRESS   BaseAddress,
+  IN UINT64                 Length,
+  IN UINT64                 Attributes
+  )
+/*++
+
+Routine Description:
+
+  This routine would support querying of an on-CPU timer.  At present, 
+  this code does not provide timer emulation.  
+
+Arguments:
+
+  Pointer to CPU Architectural Protocol interface
+  Start address of memory region
+  The size in bytes of the memory region
+  The bit mask of attributes to set for the memory region
+
+Returns:
+
+  Status
+    EFI_UNSUPPORTED - not yet implemented
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    BaseAddress - add argument and description to function comment
+// TODO:    Length - add argument and description to function comment
+// TODO:    Attributes - add argument and description to function comment
+// TODO:    EFI_INVALID_PARAMETER - add return value to function comment
+{
+  CPU_ARCH_PROTOCOL_PRIVATE *Private;
+
+  //
+  // Check for invalid parameter for Spec conformance
+  //
+  if (Length == 0) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Do nothing for Nt32 emulation
+  //
+  Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
+  return EFI_UNSUPPORTED;
+}
+
+
+EFI_STATUS
+EFIAPI
+InitializeCpu (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  Initialize the state information for the CPU Architectural Protocol
+
+Arguments:
+
+  ImageHandle of the loaded driver
+  Pointer to the System Table
+
+Returns:
+
+  Status
+
+  EFI_SUCCESS           - protocol instance can be published 
+  EFI_OUT_OF_RESOURCES  - cannot allocate protocol data structure
+  EFI_DEVICE_ERROR      - cannot create the thread
+
+--*/
+// TODO:    SystemTable - add argument and description to function comment
+{
+  EFI_STATUS                Status;
+  EFI_EVENT                 Event;
+  CPU_ARCH_PROTOCOL_PRIVATE *Private;
+  VOID                      *Registration;
+
+  Status = gBS->AllocatePool (
+                  EfiBootServicesData,
+                  sizeof (CPU_ARCH_PROTOCOL_PRIVATE),
+                  (VOID **)&Private
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  Private->Signature                    = CPU_ARCH_PROT_PRIVATE_SIGNATURE;
+  Private->Cpu.FlushDataCache           = UnixFlushCpuDataCache;
+  Private->Cpu.EnableInterrupt          = UnixEnableInterrupt;
+  Private->Cpu.DisableInterrupt         = UnixDisableInterrupt;
+  Private->Cpu.GetInterruptState        = UnixGetInterruptState;
+  Private->Cpu.Init                     = UnixInit;
+  Private->Cpu.RegisterInterruptHandler = UnixRegisterInterruptHandler;
+  Private->Cpu.GetTimerValue            = UnixGetTimerValue;
+  Private->Cpu.SetMemoryAttributes      = UnixSetMemoryAttributes;
+
+  Private->Cpu.NumberOfTimers           = 0;
+  Private->Cpu.DmaBufferAlignment       = 4;
+
+  Private->InterruptState               = TRUE;
+
+  Private->CpuIo.Mem.Read   = CpuMemoryServiceRead;
+  Private->CpuIo.Mem.Write  = CpuMemoryServiceWrite;
+  Private->CpuIo.Io.Read    = CpuIoServiceRead;
+  Private->CpuIo.Io.Write   = CpuIoServiceWrite;
+
+
+  Private->Handle                       = NULL;
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &Private->Handle,
+                  &gEfiCpuArchProtocolGuid,   &Private->Cpu,
+                  &gEfiCpuIoProtocolGuid,     &Private->CpuIo,
+                  NULL
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  //
+  // Install notify function to store processor data to HII database and data hub.
+  //
+  Status = gBS->CreateEvent (
+                  EFI_EVENT_NOTIFY_SIGNAL,
+                  EFI_TPL_CALLBACK,
+                  UnixIoProtocolNotifyFunction,
+                  ImageHandle,
+                  &Event
+                  );
+  ASSERT (!EFI_ERROR (Status));
+
+  Status = gBS->RegisterProtocolNotify (
+                  &gEfiUnixIoProtocolGuid,
+                  Event,
+                  &Registration
+                  );
+  ASSERT (!EFI_ERROR (Status));
+
+  //
+  // Should be at EFI_D_INFO, but lets us now things are running
+  //
+  DEBUG ((EFI_D_ERROR, "CPU Architectural Protocol Loaded\n"));
+
+
+  
+  return Status;
+}
+
+UINTN
+Atoi (
+  UINT16  *String
+  )
+/*++
+
+Routine Description:
+  Convert a unicode string to a UINTN
+
+Arguments:
+  String - Unicode string.
+
+Returns: 
+  UINTN of the number represented by String.  
+
+--*/
+{
+  UINTN   Number;
+  UINT16   *Str;
+
+  //
+  // skip preceeding white space
+  //
+  Str = String;
+  while ((*Str) && (*Str == ' ' || *Str == '"')) {
+    Str++;
+  }
+  //
+  // Convert ot a Number
+  //
+  Number = 0;
+  while (*Str != '\0') {
+    if ((*Str >= '0') && (*Str <= '9')) {
+      Number = (Number * 10) +*Str - '0';
+    } else {
+      break;
+    }
+
+    Str++;
+  }
+
+  return Number;
+}
+
+VOID
+EFIAPI
+UnixIoProtocolNotifyFunction (
+  IN EFI_EVENT                Event,
+  IN VOID                     *Context
+  )
+/*++
+
+Routine Description:
+  This function will log processor version and frequency data to data hub.
+
+Arguments:
+  Event        - Event whose notification function is being invoked.
+  Context      - Pointer to the notification function's context.
+
+Returns:
+  None.
+
+--*/
+{
+  EFI_STATUS                  Status;
+  EFI_CPU_DATA_RECORD_BUFFER  RecordBuffer;
+  EFI_DATA_RECORD_HEADER      *Record;
+  EFI_SUBCLASS_TYPE1_HEADER   *DataHeader;
+  UINT32                      HeaderSize;
+  UINT32                      TotalSize;
+  UINTN                       HandleCount;
+  UINTN                       HandleIndex;
+  UINT64                      MonotonicCount;
+  BOOLEAN                     RecordFound;
+  EFI_HANDLE                  *HandleBuffer;
+  EFI_UNIX_IO_PROTOCOL       *UnixIo;
+  EFI_DATA_HUB_PROTOCOL       *DataHub;
+  EFI_HII_PROTOCOL            *Hii;
+  EFI_HII_HANDLE              StringHandle;
+  EFI_HII_PACKAGES            *PackageList;
+  STRING_REF                  Token;
+
+  DataHub         = NULL;
+  Token           = 0;
+  MonotonicCount  = 0;
+  RecordFound     = FALSE;
+
+  //
+  // Retrieve the list of all handles from the handle database
+  //
+  Status = gBS->LocateHandleBuffer (
+                  AllHandles,
+                  &gEfiUnixIoProtocolGuid,
+                  NULL,
+                  &HandleCount,
+                  &HandleBuffer
+                  );
+  if (EFI_ERROR (Status)) {
+    return ;
+  }
+  //
+  // Locate HII protocol
+  //
+  Status = gBS->LocateProtocol (&gEfiHiiProtocolGuid, NULL, (VOID **)&Hii);
+  if (EFI_ERROR (Status)) {
+    return ;
+  }
+  //
+  // Locate DataHub protocol.
+  //
+  Status = gBS->LocateProtocol (&gEfiDataHubProtocolGuid, NULL, (VOID **)&DataHub);
+  if (EFI_ERROR (Status)) {
+    return ;
+  }
+  //
+  // Initialize data record header
+  //
+  mCpuDataRecordHeader.Instance = 1;
+  HeaderSize                    = sizeof (EFI_SUBCLASS_TYPE1_HEADER);
+
+  RecordBuffer.Raw              = AllocatePool (HeaderSize + EFI_CPU_DATA_MAXIMUM_LENGTH);
+  if (RecordBuffer.Raw == NULL) {
+    return ;
+  }
+
+  CopyMem (RecordBuffer.Raw, &mCpuDataRecordHeader, HeaderSize);
+
+  //
+  // Search the Handle array to find the CPU model and speed information
+  //
+  for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
+    Status = gBS->OpenProtocol (
+                    HandleBuffer[HandleIndex],
+                    &gEfiUnixIoProtocolGuid,
+                    (VOID **)&UnixIo,
+                    Context,
+                    NULL,
+                    EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                    );
+    if (EFI_ERROR (Status)) {
+      continue;
+    }
+
+    if ((UnixIo->UnixThunk->Signature == EFI_UNIX_THUNK_PROTOCOL_SIGNATURE) &&
+        CompareGuid (UnixIo->TypeGuid, &gEfiUnixCPUModelGuid)
+          ) {
+      //
+      // Check if this record has been stored in data hub
+      //
+      do {
+        Status = DataHub->GetNextRecord (DataHub, &MonotonicCount, NULL, &Record);
+        if (Record->DataRecordClass == EFI_DATA_RECORD_CLASS_DATA) {
+          DataHeader = (EFI_SUBCLASS_TYPE1_HEADER *) (Record + 1);
+          if (CompareGuid (&Record->DataRecordGuid, &gEfiProcessorSubClassGuid) &&
+              (DataHeader->RecordType == ProcessorVersionRecordType)
+              ) {
+            RecordFound = TRUE;
+          }
+        }
+      } while (MonotonicCount != 0);
+
+      if (RecordFound) {
+        RecordFound = FALSE;
+        continue;
+      }
+      //
+      // Initialize strings to HII database
+      //
+      PackageList = PreparePackages (1, &gEfiProcessorProducerGuid, STRING_ARRAY_NAME);
+
+      Status      = Hii->NewPack (Hii, PackageList, &StringHandle);
+      ASSERT (!EFI_ERROR (Status));
+
+      gBS->FreePool (PackageList);
+
+      //
+      // Store processor version data record to data hub
+      //
+      Status = Hii->NewString (Hii, NULL, StringHandle, &Token, UnixIo->EnvString);
+      ASSERT (!EFI_ERROR (Status));
+
+      RecordBuffer.DataRecord->DataRecordHeader.RecordType      = ProcessorVersionRecordType;
+      RecordBuffer.DataRecord->VariableRecord.ProcessorVersion  = Token;
+      TotalSize = HeaderSize + sizeof (EFI_PROCESSOR_VERSION_DATA);
+
+      Status = DataHub->LogData (
+                          DataHub,
+                          &gEfiProcessorSubClassGuid,
+                          &gEfiProcessorProducerGuid,
+                          EFI_DATA_RECORD_CLASS_DATA,
+                          RecordBuffer.Raw,
+                          TotalSize
+                          );
+    }
+
+    if ((UnixIo->UnixThunk->Signature == EFI_UNIX_THUNK_PROTOCOL_SIGNATURE) &&
+        CompareGuid (UnixIo->TypeGuid, &gEfiUnixCPUSpeedGuid)
+          ) {
+      //
+      // Check if this record has been stored in data hub
+      //
+      do {
+        Status = DataHub->GetNextRecord (DataHub, &MonotonicCount, NULL, &Record);
+        if (Record->DataRecordClass == EFI_DATA_RECORD_CLASS_DATA) {
+          DataHeader = (EFI_SUBCLASS_TYPE1_HEADER *) (Record + 1);
+          if (CompareGuid (&Record->DataRecordGuid, &gEfiProcessorSubClassGuid) &&
+              (DataHeader->RecordType == ProcessorCoreFrequencyRecordType)
+              ) {
+            RecordFound = TRUE;
+          }
+        }
+      } while (MonotonicCount != 0);
+
+      if (RecordFound) {
+        RecordFound = FALSE;
+        continue;
+      }
+      //
+      // Store CPU frequency data record to data hub
+      //
+      RecordBuffer.DataRecord->DataRecordHeader.RecordType                    = ProcessorCoreFrequencyRecordType;
+      RecordBuffer.DataRecord->VariableRecord.ProcessorCoreFrequency.Value    = (UINT16) Atoi (UnixIo->EnvString);
+      RecordBuffer.DataRecord->VariableRecord.ProcessorCoreFrequency.Exponent = 6;
+      TotalSize = HeaderSize + sizeof (EFI_PROCESSOR_CORE_FREQUENCY_DATA);
+
+      Status = DataHub->LogData (
+                          DataHub,
+                          &gEfiProcessorSubClassGuid,
+                          &gEfiProcessorProducerGuid,
+                          EFI_DATA_RECORD_CLASS_DATA,
+                          RecordBuffer.Raw,
+                          TotalSize
+                          );
+
+      gBS->FreePool (RecordBuffer.Raw);
+    }
+
+    gBS->CloseProtocol (
+          HandleBuffer[HandleIndex],
+          &gEfiUnixIoProtocolGuid,
+          Context,
+          NULL
+          );
+  }
+}

EdkUnixPkg/Dxe/UnixThunk/Cpu/Cpu.dxs

@@ -0,0 +1,28 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  Cpu.dxs
+
+Abstract:
+
+  Dependency expression source file.
+  
+--*/ 
+
+#include <AutoGen.h> 
+#include <DxeDepex.h>
+
+DEPENDENCY_START
+  EFI_DATA_HUB_PROTOCOL_GUID  AND
+  EFI_HII_PROTOCOL_GUID
+DEPENDENCY_END

EdkUnixPkg/Dxe/UnixThunk/Cpu/Cpu.msa

@@ -0,0 +1,108 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>Cpu</ModuleName>
+    <ModuleType>DXE_DRIVER</ModuleType>
+    <GuidValue>f3794b60-8985-11db-8e53-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>Component description file for Cpu module.</Abstract>
+    <Description>This CPU module abstracts the interrupt subsystem of a platform and the CPU-specific setjump-long pair.</Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>Cpu</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>HiiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseMemoryLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>Strings.uni</Filename>
+    <Filename>CpuDriver.h</Filename>
+    <Filename>Cpu.c</Filename>
+    <Filename>CpuIo.c</Filename>
+    <Filename>Cpu.dxs</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="ALWAYS_PRODUCED">
+      <ProtocolCName>gEfiCpuArchProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="ALWAYS_PRODUCED">
+      <ProtocolCName>gEfiCpuIoProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="SOMETIMES_CONSUMED">
+      <ProtocolCName>gEfiHiiProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="SOMETIMES_CONSUMED">
+      <ProtocolCName>gEfiDataHubProtocolGuid</ProtocolCName>
+    </Protocol>
+    <ProtocolNotify Usage="SOMETIMES_CONSUMED">
+      <ProtocolNotifyCName>gEfiUnixIoProtocolGuid</ProtocolNotifyCName>
+    </ProtocolNotify>
+  </Protocols>
+  <DataHubs>
+    <DataHubRecord Usage="SOMETIMES_PRODUCED">
+      <DataHubCName>ProcessorVersion</DataHubCName>
+    </DataHubRecord>
+    <DataHubRecord Usage="SOMETIMES_PRODUCED">
+      <DataHubCName>ProcessorCoreFrequency</DataHubCName>
+    </DataHubRecord>
+  </DataHubs>
+  <Guids>
+    <GuidCNames Usage="SOMETIMES_CONSUMED">
+      <GuidCName>gEfiProcessorProducerGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="SOMETIMES_CONSUMED">
+      <GuidCName>gEfiProcessorSubClassGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="SOMETIMES_CONSUMED">
+      <GuidCName>gEfiUnixCPUModelGuid</GuidCName>
+    </GuidCNames>
+    <GuidCNames Usage="SOMETIMES_CONSUMED">
+      <GuidCName>gEfiUnixCPUSpeedGuid</GuidCName>
+    </GuidCNames>
+  </Guids>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <ModuleEntryPoint>InitializeCpu</ModuleEntryPoint>
+    </Extern>
+  </Externs>
+</ModuleSurfaceArea>

EdkUnixPkg/Dxe/UnixThunk/Cpu/CpuDriver.h

@@ -0,0 +1,96 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  CpuDriver.h
+
+Abstract:
+
+  NT Emulation Architectural Protocol Driver as defined in Tiano.
+
+--*/
+
+#ifndef _CPU_ARCHITECTURAL_PROTOCOL_DRIVER_H_
+#define _CPU_ARCHITECTURAL_PROTOCOL_DRIVER_H_
+
+
+
+extern UINT8  STRING_ARRAY_NAME[];
+
+//
+// Internal Data Structures
+//
+#define CPU_ARCH_PROT_PRIVATE_SIGNATURE EFI_SIGNATURE_32 ('c', 'a', 'p', 'd')
+
+typedef struct {
+  UINTN                 Signature;
+  EFI_HANDLE            Handle;
+
+  EFI_CPU_ARCH_PROTOCOL Cpu;
+  EFI_CPU_IO_PROTOCOL   CpuIo;
+
+  //
+  // Local Data for CPU interface goes here
+  //
+  BOOLEAN               InterruptState;
+
+} CPU_ARCH_PROTOCOL_PRIVATE;
+
+#define CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS(a) \
+  CR (a, \
+      CPU_ARCH_PROTOCOL_PRIVATE, \
+      Cpu, \
+      CPU_ARCH_PROT_PRIVATE_SIGNATURE \
+      )
+
+EFI_STATUS
+EFIAPI
+CpuMemoryServiceRead (
+  IN  EFI_CPU_IO_PROTOCOL               *This,
+  IN  EFI_CPU_IO_PROTOCOL_WIDTH         Width,
+  IN  UINT64                            Address,
+  IN  UINTN                             Count,
+  IN  OUT VOID                          *Buffer
+  );
+
+EFI_STATUS
+EFIAPI
+CpuMemoryServiceWrite (
+  IN EFI_CPU_IO_PROTOCOL                *This,
+  IN  EFI_CPU_IO_PROTOCOL_WIDTH         Width,
+  IN  UINT64                            Address,
+  IN  UINTN                             Count,
+  IN  OUT VOID                          *Buffer
+  );
+
+EFI_STATUS
+EFIAPI
+CpuIoServiceRead (
+  IN EFI_CPU_IO_PROTOCOL                *This,
+  IN  EFI_CPU_IO_PROTOCOL_WIDTH         Width,
+  IN  UINT64                            UserAddress,
+  IN  UINTN                             Count,
+  IN  OUT VOID                          *UserBuffer
+  );
+
+EFI_STATUS
+EFIAPI
+CpuIoServiceWrite (
+  IN EFI_CPU_IO_PROTOCOL                *This,
+  IN  EFI_CPU_IO_PROTOCOL_WIDTH         Width,
+  IN  UINT64                            UserAddress,
+  IN  UINTN                             Count,
+  IN  OUT VOID                          *UserBuffer
+  );
+
+
+#endif

EdkUnixPkg/Dxe/UnixThunk/Cpu/CpuIo.c

@@ -0,0 +1,335 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  CpuIo.c
+
+Abstract:
+
+  This is the code that publishes the CPU I/O Protocol.
+  The intent herein is to have a single I/O service that can load
+  as early as possible, extend into runtime, and be layered upon by 
+  the implementations of architectural protocols and the PCI Root
+  Bridge I/O Protocol.
+
+--*/
+
+#include <CpuDriver.h>
+
+#define IA32_MAX_IO_ADDRESS   0xFFFF
+#define IA32_MAX_MEM_ADDRESS  0xFFFFFFFF
+
+EFI_CPU_IO_PROTOCOL mCpuIoProtocol;
+
+EFI_STATUS
+CpuIoCheckAddressRange (
+  IN  EFI_CPU_IO_PROTOCOL_WIDTH         Width,
+  IN  UINT64                            Address,
+  IN  UINTN                             Count,
+  IN  VOID                              *Buffer,
+  IN  UINT64                            Limit
+  );
+
+EFI_STATUS
+EFIAPI
+CpuMemoryServiceRead (
+  IN  EFI_CPU_IO_PROTOCOL               *This,
+  IN  EFI_CPU_IO_PROTOCOL_WIDTH         Width,
+  IN  UINT64                            Address,
+  IN  UINTN                             Count,
+  IN  OUT VOID                          *Buffer
+  )
+/*++
+
+Routine Description:
+
+  Perform the Memory Access Read service for the CPU I/O Protocol
+
+Arguments:
+
+  Pointer to an instance of the CPU I/O Protocol
+  Width of the Memory Access
+  Address of the Memory access
+  Count of the number of accesses to perform
+  Pointer to the buffer to read or write from memory
+
+Returns:
+
+  Status
+
+  EFI_SUCCESS             - The data was read from or written to the EFI 
+                            System.
+  EFI_INVALID_PARAMETER   - Width is invalid for this EFI System.
+  EFI_INVALID_PARAMETER   - Buffer is NULL.
+  EFI_UNSUPPORTED         - The Buffer is not aligned for the given Width.
+  EFI_UNSUPPORTED         - The address range specified by Address, Width, 
+                            and Count is not valid for this EFI System.
+
+--*/
+// TODO:    This - add argument and description to function comment
+{
+  EFI_STATUS  Status;
+
+  if (!Buffer) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Status = CpuIoCheckAddressRange (Width, Address, Count, Buffer, IA32_MAX_MEM_ADDRESS);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Do nothing for Nt32 version
+  //
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+CpuMemoryServiceWrite (
+  IN EFI_CPU_IO_PROTOCOL                *This,
+  IN  EFI_CPU_IO_PROTOCOL_WIDTH         Width,
+  IN  UINT64                            Address,
+  IN  UINTN                             Count,
+  IN  OUT VOID                          *Buffer
+  )
+/*++
+
+Routine Description:
+
+  Perform the Memory Access Read service for the CPU I/O Protocol
+
+Arguments:
+
+  Pointer to an instance of the CPU I/O Protocol
+  Width of the Memory Access
+  Address of the Memory access
+  Count of the number of accesses to perform
+  Pointer to the buffer to read or write from memory
+
+Returns:
+
+  Status
+
+  EFI_SUCCESS             - The data was read from or written to the EFI System.
+  EFI_INVALID_PARAMETER   - Width is invalid for this EFI System.
+  EFI_INVALID_PARAMETER   - Buffer is NULL.
+  EFI_UNSUPPORTED         - The Buffer is not aligned for the given Width.
+  EFI_UNSUPPORTED         - The address range specified by Address, Width, and 
+                            Count is not valid for this EFI System.
+
+--*/
+// TODO:    This - add argument and description to function comment
+{
+  EFI_STATUS  Status;
+
+  if (!Buffer) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Status = CpuIoCheckAddressRange (Width, Address, Count, Buffer, IA32_MAX_MEM_ADDRESS);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Do nothing for Nt32 version
+  //
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+CpuIoServiceRead (
+  IN EFI_CPU_IO_PROTOCOL                *This,
+  IN  EFI_CPU_IO_PROTOCOL_WIDTH         Width,
+  IN  UINT64                            UserAddress,
+  IN  UINTN                             Count,
+  IN  OUT VOID                          *UserBuffer
+  )
+/*++
+
+Routine Description:
+  
+  This is the service that implements the I/O read
+
+Arguments:
+
+  Pointer to an instance of the CPU I/O Protocol
+  Width of the Memory Access
+  Address of the I/O access
+  Count of the number of accesses to perform
+  Pointer to the buffer to read or write from I/O space
+
+Returns:
+
+  Status
+  EFI_SUCCESS             - The data was read from or written to the EFI System.
+  EFI_INVALID_PARAMETER   - Width is invalid for this EFI System.
+  EFI_INVALID_PARAMETER   - Buffer is NULL.
+  EFI_UNSUPPORTED         - The Buffer is not aligned for the given Width.
+  EFI_UNSUPPORTED         - The address range specified by Address, Width, and 
+                            Count is not valid for this EFI System.
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    UserAddress - add argument and description to function comment
+// TODO:    UserBuffer - add argument and description to function comment
+{
+  UINTN       Address;
+  EFI_STATUS  Status;
+
+  if (!UserBuffer) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Address = (UINTN) UserAddress;
+
+  if (Width >= EfiCpuIoWidthMaximum) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Status = CpuIoCheckAddressRange (Width, Address, Count, UserBuffer, IA32_MAX_IO_ADDRESS);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Do nothing for Nt32 version
+  //
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+CpuIoServiceWrite (
+  IN EFI_CPU_IO_PROTOCOL                *This,
+  IN  EFI_CPU_IO_PROTOCOL_WIDTH         Width,
+  IN  UINT64                            UserAddress,
+  IN  UINTN                             Count,
+  IN  OUT VOID                          *UserBuffer
+  )
+/*++
+
+Routine Description:
+
+  
+  This is the service that implements the I/O Write
+
+Arguments:
+
+  Pointer to an instance of the CPU I/O Protocol
+  Width of the Memory Access
+  Address of the I/O access
+  Count of the number of accesses to perform
+  Pointer to the buffer to read or write from I/O space
+
+Returns:
+
+  Status
+
+  Status
+  EFI_SUCCESS             - The data was read from or written to the EFI System.
+  EFI_INVALID_PARAMETER   - Width is invalid for this EFI System.
+  EFI_INVALID_PARAMETER   - Buffer is NULL.
+  EFI_UNSUPPORTED         - The Buffer is not aligned for the given Width.
+  EFI_UNSUPPORTED         - The address range specified by Address, Width, and 
+                            Count is not valid for this EFI System.
+
+--*/
+// TODO:    This - add argument and description to function comment
+// TODO:    UserAddress - add argument and description to function comment
+// TODO:    UserBuffer - add argument and description to function comment
+{
+  UINTN       Address;
+  EFI_STATUS  Status;
+
+  if (!UserBuffer) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Address = (UINTN) UserAddress;
+
+  if (Width >= EfiCpuIoWidthMaximum) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Status = CpuIoCheckAddressRange (Width, Address, Count, UserBuffer, IA32_MAX_IO_ADDRESS);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Do nothing for Nt32 version
+  //
+  return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+CpuIoCheckAddressRange (
+  IN  EFI_CPU_IO_PROTOCOL_WIDTH         Width,
+  IN  UINT64                            Address,
+  IN  UINTN                             Count,
+  IN  VOID                              *Buffer,
+  IN  UINT64                            Limit
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Width   - TODO: add argument description
+  Address - TODO: add argument description
+  Count   - TODO: add argument description
+  Buffer  - TODO: add argument description
+  Limit   - TODO: add argument description
+
+Returns:
+
+  EFI_UNSUPPORTED - TODO: Add description for return value
+  EFI_UNSUPPORTED - TODO: Add description for return value
+  EFI_UNSUPPORTED - TODO: Add description for return value
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UINTN AlignMask;
+
+  if (Address > Limit) {
+    return EFI_UNSUPPORTED;
+  }
+
+  //
+  // For FiFo type, the target address won't increase during the access, so treat count as 1
+  //
+  if (Width >= EfiCpuIoWidthFifoUint8 && Width <= EfiCpuIoWidthFifoUint64) {
+    Count = 1;
+  }
+
+  Width = Width & 0x03;
+  if (Address - 1 + (1 << Width) * Count > Limit) {
+    return EFI_UNSUPPORTED;
+  }
+
+  AlignMask = (1 << Width) - 1;
+  if ((UINTN) Buffer & AlignMask) {
+    return EFI_UNSUPPORTED;
+  }
+
+  return EFI_SUCCESS;
+}
+
+

EdkUnixPkg/Dxe/UnixThunk/UnixThunk/UnixThunk.c

@@ -0,0 +1,87 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixThunk.c
+
+Abstract:
+
+  Produce UnixThunk protocol and it's associated device path and controller 
+  state protocols. UnixThunk is to the emulation environment as 
+  PCI_ROOT_BRIGE is to real hardware. The UnixBusDriver is the child of this
+  driver.
+
+  Since we are a root hardware abstraction we do not install a Driver Binding
+  protocol on this handle. This driver can only support one one UnixThunk protocol
+  in the system, since the device path is hard coded.
+
+--*/
+
+#include "UnixThunk.h"
+
+//
+// WinNtThunk Device Path Protocol Instance
+//
+static UNIX_THUNK_DEVICE_PATH mUnixThunkDevicePath = {
+  {
+    HARDWARE_DEVICE_PATH,
+    HW_VENDOR_DP,
+    (UINT8) (sizeof (VENDOR_DEVICE_PATH)),
+    (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8),
+    EFI_UNIX_THUNK_PROTOCOL_GUID,
+  },
+  {
+    END_DEVICE_PATH_TYPE,
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,
+    END_DEVICE_PATH_LENGTH,
+    0
+  }
+};
+
+
+EFI_STATUS
+EFIAPI
+InitializeUnixThunk (
+  IN EFI_HANDLE                            ImageHandle,
+  IN EFI_SYSTEM_TABLE                      *SystemTable
+  )
+/*++
+
+Routine Description:
+  Install UnixThunk Protocol and it's associated Device Path protocol
+
+Arguments:
+  (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
+
+Returns:
+  EFI_SUCEESS - UnixThunk protocol is added or error status from 
+                gBS->InstallMultiProtocolInterfaces().
+
+--*/
+// TODO:    ImageHandle - add argument and description to function comment
+// TODO:    SystemTable - add argument and description to function comment
+{
+  EFI_STATUS  Status;
+  EFI_HANDLE  ControllerHandle;
+
+  ControllerHandle = NULL;
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &ControllerHandle,
+                  &gEfiUnixThunkProtocolGuid,
+                  gUnix,
+                  &gEfiDevicePathProtocolGuid,
+                  &mUnixThunkDevicePath,
+                  NULL
+                  );
+
+  return Status;
+}

EdkUnixPkg/Dxe/UnixThunk/UnixThunk/UnixThunk.dxs

@@ -0,0 +1,27 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixThunk.dxs
+
+Abstract:
+
+  Dependency expression source file.
+  
+--*/  
+
+#include <AutoGen.h>
+#include <DxeDepex.h>
+
+DEPENDENCY_START
+  TRUE
+DEPENDENCY_END

EdkUnixPkg/Dxe/UnixThunk/UnixThunk/UnixThunk.h

@@ -0,0 +1,30 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixThunk.h
+
+Abstract:
+
+--*/
+
+// TODO: add protective #ifndef
+
+
+//
+// WinNtThunk Device Path Protocol Instance Type
+//
+typedef struct {
+  VENDOR_DEVICE_PATH        Vendor;
+  EFI_DEVICE_PATH_PROTOCOL  EndDevicePath;
+} UNIX_THUNK_DEVICE_PATH;
+

EdkUnixPkg/Dxe/UnixThunk/UnixThunk/UnixThunk.msa

@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
+  <MsaHeader>
+    <ModuleName>UnixThunk</ModuleName>
+    <ModuleType>DXE_DRIVER</ModuleType>
+    <GuidValue>f38610fc-8985-11db-82d4-0040d02b1835</GuidValue>
+    <Version>1.0</Version>
+    <Abstract>A DXE driver to produce EFI_UNIX_THUNK_PROTOCOL</Abstract>
+    <Description>EFI_UNIX_THUNK_PROTOCOL is a table of pointers to various Unix APIs used by various drivers to accomplish certain task in a Unix emulator.</Description>
+    <Copyright>Copyright (c) 2006, Intel Corporation</Copyright>
+    <License>All rights reserved. This program and the accompanying materials
+      are licensed and made available under the terms and conditions of the BSD License
+      which accompanies this distribution.  The full text of the license may be found at
+      http://opensource.org/licenses/bsd-license.php
+      THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+      WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
+    <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
+  </MsaHeader>
+  <ModuleDefinitions>
+    <SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
+    <BinaryModule>false</BinaryModule>
+    <OutputFileBasename>UnixThunk</OutputFileBasename>
+  </ModuleDefinitions>
+  <LibraryClassDefinitions>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>DebugLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiDriverEntryPoint</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UnixLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>MemoryAllocationLib</Keyword>
+    </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>UefiBootServicesTableLib</Keyword>
+    </LibraryClass>
+  </LibraryClassDefinitions>
+  <SourceFiles>
+    <Filename>UnixThunk.h</Filename>
+    <Filename>UnixThunk.c</Filename>
+    <Filename>UnixThunk.dxs</Filename>
+  </SourceFiles>
+  <PackageDependencies>
+    <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+    <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+    <Package PackageGuid="f2805c44-8985-11db-9e98-0040d02b1835"/>
+  </PackageDependencies>
+  <Protocols>
+    <Protocol Usage="ALWAYS_PRODUCED">
+      <ProtocolCName>gEfiUnixThunkProtocolGuid</ProtocolCName>
+    </Protocol>
+    <Protocol Usage="ALWAYS_PRODUCED">
+      <ProtocolCName>gEfiDevicePathProtocolGuid</ProtocolCName>
+    </Protocol>
+  </Protocols>
+  <Externs>
+    <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+    <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+    <Extern>
+      <ModuleEntryPoint>InitializeUnixThunk</ModuleEntryPoint>
+    </Extern>
+  </Externs>
+</ModuleSurfaceArea>