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/** @file
Copyright (c) 2014 - 2015, 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/BaseLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/SmmServicesTableLib.h>
#include <Library/DevicePathLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include <Protocol/SmmCommunication.h>
#include <Guid/MemoryProfile.h>
EFI_SMM_COMMUNICATION_PROTOCOL *mSmmCommunication = NULL;
/**
Get the GUID file name from the file path.
@param FilePath File path.
@return The GUID file name from the file path.
**/
EFI_GUID *
GetFileNameFromFilePath (
IN EFI_DEVICE_PATH_PROTOCOL *FilePath
)
{
MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *ThisFilePath;
ThisFilePath = (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) FilePath;
while (!IsDevicePathEnd (ThisFilePath)) {
if ((DevicePathType (ThisFilePath) == MEDIA_DEVICE_PATH) && (DevicePathSubType (ThisFilePath) == MEDIA_PIWG_FW_FILE_DP)) {
return &ThisFilePath->FvFileName;
}
ThisFilePath = (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) NextDevicePathNode (ThisFilePath);
}
return NULL;
}
/**
Register SMM image to SMRAM profile.
@param[in] FilePath File path of the image.
@param[in] ImageBuffer Image base address.
@param[in] NumberOfPage Number of page.
@retval TRUE Register success.
@retval FALSE Register fail.
**/
BOOLEAN
RegisterSmramProfileImage (
IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
IN PHYSICAL_ADDRESS ImageBuffer,
IN UINTN NumberOfPage
)
{
EFI_GUID *FileName;
EFI_STATUS Status;
UINTN CommSize;
UINT8 CommBuffer[sizeof (EFI_GUID) + sizeof (UINTN) + sizeof (SMRAM_PROFILE_PARAMETER_REGISTER_IMAGE)];
EFI_SMM_COMMUNICATE_HEADER *CommHeader;
SMRAM_PROFILE_PARAMETER_REGISTER_IMAGE *CommRegisterImage;
if ((PcdGet8 (PcdMemoryProfilePropertyMask) & BIT1) == 0) {
return FALSE;
}
FileName = GetFileNameFromFilePath (FilePath);
if (mSmmCommunication == NULL) {
Status = gBS->LocateProtocol (&gEfiSmmCommunicationProtocolGuid, NULL, (VOID **) &mSmmCommunication);
ASSERT_EFI_ERROR (Status);
}
CommHeader = (EFI_SMM_COMMUNICATE_HEADER *) &CommBuffer[0];
CopyMem (&CommHeader->HeaderGuid, &gEdkiiMemoryProfileGuid, sizeof (gEdkiiMemoryProfileGuid));
CommHeader->MessageLength = sizeof (SMRAM_PROFILE_PARAMETER_REGISTER_IMAGE);
CommRegisterImage = (SMRAM_PROFILE_PARAMETER_REGISTER_IMAGE *)&CommBuffer[OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data)];
CommRegisterImage->Header.Command = SMRAM_PROFILE_COMMAND_REGISTER_IMAGE;
CommRegisterImage->Header.DataLength = sizeof (*CommRegisterImage);
CommRegisterImage->Header.ReturnStatus = (UINT64)-1;
CopyMem (&CommRegisterImage->FileName, FileName, sizeof(EFI_GUID));
CommRegisterImage->ImageBuffer = ImageBuffer;
CommRegisterImage->NumberOfPage = NumberOfPage;
CommSize = sizeof (EFI_GUID) + sizeof (UINTN) + CommHeader->MessageLength;
Status = mSmmCommunication->Communicate (mSmmCommunication, CommBuffer, &CommSize);
ASSERT_EFI_ERROR (Status);
if (CommRegisterImage->Header.ReturnStatus != 0) {
return FALSE;
}
return TRUE;
}
/**
Unregister SMM image from SMRAM profile.
@param[in] FilePath File path of the image.
@param[in] ImageBuffer Image base address.
@param[in] NumberOfPage Number of page.
@retval TRUE Unregister success.
@retval FALSE Unregister fail.
**/
BOOLEAN
UnregisterSmramProfileImage (
IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
IN PHYSICAL_ADDRESS ImageBuffer,
IN UINTN NumberOfPage
)
{
EFI_GUID *FileName;
EFI_STATUS Status;
UINTN CommSize;
UINT8 CommBuffer[sizeof (EFI_GUID) + sizeof (UINTN) + sizeof (SMRAM_PROFILE_PARAMETER_UNREGISTER_IMAGE)];
EFI_SMM_COMMUNICATE_HEADER *CommHeader;
SMRAM_PROFILE_PARAMETER_UNREGISTER_IMAGE *CommUnregisterImage;
if ((PcdGet8 (PcdMemoryProfilePropertyMask) & BIT1) == 0) {
return FALSE;
}
FileName = GetFileNameFromFilePath (FilePath);
if (mSmmCommunication == NULL) {
Status = gBS->LocateProtocol (&gEfiSmmCommunicationProtocolGuid, NULL, (VOID **) &mSmmCommunication);
ASSERT_EFI_ERROR (Status);
}
CommHeader = (EFI_SMM_COMMUNICATE_HEADER *)&CommBuffer[0];
CopyMem (&CommHeader->HeaderGuid, &gEdkiiMemoryProfileGuid, sizeof(gEdkiiMemoryProfileGuid));
CommHeader->MessageLength = sizeof(SMRAM_PROFILE_PARAMETER_UNREGISTER_IMAGE);
CommUnregisterImage = (SMRAM_PROFILE_PARAMETER_UNREGISTER_IMAGE *)&CommBuffer[OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data)];
CommUnregisterImage->Header.Command = SMRAM_PROFILE_COMMAND_UNREGISTER_IMAGE;
CommUnregisterImage->Header.DataLength = sizeof (*CommUnregisterImage);
CommUnregisterImage->Header.ReturnStatus = (UINT64)-1;
CopyMem (&CommUnregisterImage->FileName, FileName, sizeof(EFI_GUID));
CommUnregisterImage->ImageBuffer = ImageBuffer;
CommUnregisterImage->NumberOfPage = NumberOfPage;
CommSize = sizeof (EFI_GUID) + sizeof (UINTN) + CommHeader->MessageLength;
Status = mSmmCommunication->Communicate (mSmmCommunication, CommBuffer, &CommSize);
ASSERT_EFI_ERROR (Status);
if (CommUnregisterImage->Header.ReturnStatus != 0) {
return FALSE;
}
return TRUE;
}
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