Unix version of EFI emulator

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

EdkUnixPkg/RuntimeDxe/FvbServices/FvbInfo.c

@@ -0,0 +1,125 @@
+/*++
+
+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:
+
+  FvbInfo.c
+
+Abstract:
+
+  Defines data structure that is the volume header found.These data is intent
+  to decouple FVB driver with FV header.
+
+--*/
+
+#include "FlashLayout.h"
+
+#define FIRMWARE_BLOCK_SIZE 0x10000
+
+typedef struct {
+  UINT64                      FvLength;
+  EFI_FIRMWARE_VOLUME_HEADER  FvbInfo;
+  //
+  // EFI_FV_BLOCK_MAP_ENTRY    ExtraBlockMap[n];//n=0
+  //
+  EFI_FV_BLOCK_MAP_ENTRY      End[1];
+} EFI_FVB_MEDIA_INFO;
+
+#define FVB_MEDIA_BLOCK_SIZE    FIRMWARE_BLOCK_SIZE
+#define RECOVERY_BOIS_BLOCK_NUM FIRMWARE_BLOCK_NUMBER
+#define SYSTEM_NV_BLOCK_NUM     2
+
+EFI_FVB_MEDIA_INFO  mPlatformFvbMediaInfo[] = {
+  //
+  // Recovery BOIS FVB
+  //
+  {
+    EFI_WINNT_FIRMWARE_LENGTH,
+    {
+      {
+        0,
+      },  // ZeroVector[16]
+      EFI_FIRMWARE_FILE_SYSTEM_GUID,
+      FVB_MEDIA_BLOCK_SIZE * RECOVERY_BOIS_BLOCK_NUM,
+      EFI_FVH_SIGNATURE,
+      EFI_FVB_READ_ENABLED_CAP |
+        EFI_FVB_READ_STATUS |
+        EFI_FVB_WRITE_ENABLED_CAP |
+        EFI_FVB_WRITE_STATUS |
+        EFI_FVB_ERASE_POLARITY,
+      sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
+      0,  // CheckSum
+      {
+        0,
+      },  // Reserved[3]
+      1,  // Revision
+      {
+        RECOVERY_BOIS_BLOCK_NUM,
+        FVB_MEDIA_BLOCK_SIZE,
+      }
+    },
+    {
+      0,
+      0
+    }
+  },
+  //
+  // Systen NvStorage FVB
+  //
+  {
+    EFI_WINNT_RUNTIME_UPDATABLE_LENGTH + EFI_WINNT_FTW_SPARE_BLOCK_LENGTH,
+    {
+      {
+        0,
+      },  // ZeroVector[16]
+      EFI_SYSTEM_NV_DATA_HOB_GUID,
+      FVB_MEDIA_BLOCK_SIZE * SYSTEM_NV_BLOCK_NUM,
+      EFI_FVH_SIGNATURE,
+      EFI_FVB_READ_ENABLED_CAP |
+        EFI_FVB_READ_STATUS |
+        EFI_FVB_WRITE_ENABLED_CAP |
+        EFI_FVB_WRITE_STATUS |
+        EFI_FVB_ERASE_POLARITY,
+      sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
+      0,  // CheckSum
+      {
+        0,
+      },  // Reserved[3]
+      1,  // Revision
+      {
+        SYSTEM_NV_BLOCK_NUM,
+        FVB_MEDIA_BLOCK_SIZE,
+      }
+    },
+    {
+      0,
+      0
+    }
+  }
+};
+
+EFI_STATUS
+GetFvbInfo (
+  IN  UINT64                        FvLength,
+  OUT EFI_FIRMWARE_VOLUME_HEADER    **FvbInfo
+  )
+{
+  UINTN Index;
+
+  for (Index = 0; Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO); Index += 1) {
+    if (mPlatformFvbMediaInfo[Index].FvLength == FvLength) {
+      *FvbInfo = &mPlatformFvbMediaInfo[Index].FvbInfo;
+      return EFI_SUCCESS;
+    }
+  }
+
+  return EFI_NOT_FOUND;
+}