MdeModulePkg/SmmSmiHandlerProfileLib: Add SMM instance.

This instance should be linked by SmmChildDispatcher if SMI handler profile feature is enabled. Cc: Feng Tian <feng.tian@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-01-30 06:44:23 -08:00
parent c5e7ba5776
commit e08bfc7d6f
3 changed files with 173 additions and 0 deletions
--- a/MdeModulePkg/Library/SmmSmiHandlerProfileLib/SmmSmiHandlerProfileLib.c
+++ b/MdeModulePkg/Library/SmmSmiHandlerProfileLib/SmmSmiHandlerProfileLib.c
@@ -0,0 +1,106 @@
+/** @file
+  SMM driver instance of SmiHandlerProfile Library.
+
+  Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+  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.
+
+**/
+
+#include <PiSmm.h>
+#include <Library/SmiHandlerProfileLib.h>
+#include <Library/SmmServicesTableLib.h>
+#include <Guid/SmiHandlerProfile.h>
+
+SMI_HANDLER_PROFILE_PROTOCOL  *mSmiHandlerProfile;
+
+/**
+  This function is called by SmmChildDispatcher module to report
+  a new SMI handler is registered, to SmmCore.
+
+  @param HandlerGuid     The GUID to identify the type of the handler.
+                         For the SmmChildDispatch protocol, the HandlerGuid
+                         must be the GUID of SmmChildDispatch protocol.
+  @param Handler         The SMI handler.
+  @param CallerAddress   The address of the module who registers the SMI handler.
+  @param Context         The context of the SMI handler.
+                         For the SmmChildDispatch protocol, the Context
+                         must match the one defined for SmmChildDispatch protocol.
+  @param ContextSize     The size of the context in bytes.
+                         For the SmmChildDispatch protocol, the Context
+                         must match the one defined for SmmChildDispatch protocol.
+
+  @retval EFI_SUCCESS           The information is recorded.
+  @retval EFI_UNSUPPORTED       The feature is unsupported.
+  @retval EFI_OUT_OF_RESOURCES  There is no enough resource to record the information.
+**/
+EFI_STATUS
+EFIAPI
+SmiHandlerProfileRegisterHandler (
+  IN EFI_GUID                       *HandlerGuid,
+  IN EFI_SMM_HANDLER_ENTRY_POINT2   Handler,
+  IN PHYSICAL_ADDRESS               CallerAddress,
+  IN VOID                           *Context, OPTIONAL
+  IN UINTN                          ContextSize OPTIONAL
+  )
+{
+  if (mSmiHandlerProfile != NULL) {
+    return mSmiHandlerProfile->RegisterHandler (mSmiHandlerProfile, HandlerGuid, Handler, CallerAddress, Context, ContextSize);
+  }
+  return EFI_UNSUPPORTED;
+}
+
+/**
+  This function is called by SmmChildDispatcher module to report
+  an existing SMI handler is unregistered, to SmmCore.
+
+  @param HandlerGuid     The GUID to identify the type of the handler.
+                         For the SmmChildDispatch protocol, the HandlerGuid
+                         must be the GUID of SmmChildDispatch protocol.
+  @param Handler         The SMI handler.
+
+  @retval EFI_SUCCESS           The original record is removed.
+  @retval EFI_UNSUPPORTED       The feature is unsupported.
+  @retval EFI_NOT_FOUND         There is no record for the HandlerGuid and handler.
+**/
+EFI_STATUS
+EFIAPI
+SmiHandlerProfileUnregisterHandler (
+  IN EFI_GUID                       *HandlerGuid,
+  IN EFI_SMM_HANDLER_ENTRY_POINT2   Handler
+  )
+{
+  if (mSmiHandlerProfile != NULL) {
+    return mSmiHandlerProfile->UnregisterHandler (mSmiHandlerProfile, HandlerGuid, Handler);
+  }
+  return EFI_UNSUPPORTED;
+}
+
+/**
+  The constructor function for SMI handler profile.
+
+  @param  ImageHandle   The firmware allocated handle for the EFI image.
+  @param  SystemTable   A pointer to the EFI System Table.
+
+  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.
+**/
+EFI_STATUS
+EFIAPI
+SmmSmiHandlerProfileLibConstructor (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  gSmst->SmmLocateProtocol (
+           &gSmiHandlerProfileGuid,
+           NULL,
+           &mSmiHandlerProfile
+           );
+  return EFI_SUCCESS;
+}
+