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/** @file
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 that 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/SmmServicesTableLib.h>
#include <Library/TestPointCheckLib.h>
#include <Library/TestPointLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiLib.h>
#include <Library/PrintLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Guid/MemoryAttributesTable.h>
#include <Guid/PiSmmMemoryAttributesTable.h>
#include <Protocol/LoadedImage.h>
VOID
TestPointDumpMemoryAttributesTable (
IN EFI_MEMORY_ATTRIBUTES_TABLE *MemoryAttributesTable
);
EFI_STATUS
TestPointCheckImageMemoryAttribute (
IN EFI_MEMORY_ATTRIBUTES_TABLE *MemoryAttributesTable,
IN EFI_PHYSICAL_ADDRESS ImageBase,
IN UINT64 ImageSize,
IN BOOLEAN IsFromSmm
);
EFI_STATUS
TestPointCheckSmmMemoryAttributesTable (
IN EFI_MEMORY_ATTRIBUTES_TABLE *MemoryAttributesTable
)
{
EFI_STATUS Status;
EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
UINTN Index;
UINTN HandleBufSize;
EFI_HANDLE *HandleBuf;
UINTN HandleCount;
EFI_STATUS ReturnStatus;
ReturnStatus = EFI_SUCCESS;
DEBUG ((DEBUG_INFO, "==== TestPointDumpSmmLoadedImage - Enter\n"));
HandleBuf = NULL;
HandleBufSize = 0;
Status = gSmst->SmmLocateHandle (
ByProtocol,
&gEfiLoadedImageProtocolGuid,
NULL,
&HandleBufSize,
HandleBuf
);
if (Status != EFI_BUFFER_TOO_SMALL) {
goto Done ;
}
HandleBuf = AllocateZeroPool (HandleBufSize);
if (HandleBuf == NULL) {
goto Done ;
}
Status = gSmst->SmmLocateHandle (
ByProtocol,
&gEfiLoadedImageProtocolGuid,
NULL,
&HandleBufSize,
HandleBuf
);
if (EFI_ERROR (Status)) {
goto Done ;
}
HandleCount = HandleBufSize / sizeof(EFI_HANDLE);
DEBUG ((DEBUG_INFO, "SmmLoadedImage (%d):\n", HandleCount));
for (Index = 0; Index < HandleCount; Index++) {
Status = gSmst->SmmHandleProtocol (
HandleBuf[Index],
&gEfiLoadedImageProtocolGuid,
(VOID **)&LoadedImage
);
if (EFI_ERROR(Status)) {
continue;
}
Status = TestPointCheckImageMemoryAttribute (
MemoryAttributesTable,
(EFI_PHYSICAL_ADDRESS)(UINTN)LoadedImage->ImageBase,
LoadedImage->ImageSize,
TRUE
);
if (EFI_ERROR(Status)) {
ReturnStatus = Status;
}
}
Done:
if (HandleBuf != NULL) {
FreePool (HandleBuf);
}
return ReturnStatus;
}
/**
Retrieves a pointer to the system configuration table from the SMM System Table
based on a specified GUID.
@param[in] TableGuid The pointer to table's GUID type.
@param[out] Table The pointer to the table associated with TableGuid in the EFI System Table.
@retval EFI_SUCCESS A configuration table matching TableGuid was found.
@retval EFI_NOT_FOUND A configuration table matching TableGuid could not be found.
**/
EFI_STATUS
EFIAPI
SmmGetSystemConfigurationTable (
IN EFI_GUID *TableGuid,
OUT VOID **Table
)
{
UINTN Index;
ASSERT (TableGuid != NULL);
ASSERT (Table != NULL);
*Table = NULL;
for (Index = 0; Index < gSmst->NumberOfTableEntries; Index++) {
if (CompareGuid (TableGuid, &(gSmst->SmmConfigurationTable[Index].VendorGuid))) {
*Table = gSmst->SmmConfigurationTable[Index].VendorTable;
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
EFI_STATUS
TestPointCheckSmmMemAttribute (
VOID
)
{
EFI_STATUS Status;
VOID *MemoryAttributesTable;
DEBUG ((DEBUG_INFO, "==== TestPointCheckSmmMemAttribute - Enter\n"));
Status = SmmGetSystemConfigurationTable (&gEdkiiPiSmmMemoryAttributesTableGuid, (VOID **)&MemoryAttributesTable);
if (!EFI_ERROR (Status)) {
TestPointDumpMemoryAttributesTable(MemoryAttributesTable);
Status = TestPointCheckSmmMemoryAttributesTable(MemoryAttributesTable);
}
if (EFI_ERROR (Status)) {
TestPointLibAppendErrorString (
PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV,
NULL,
TEST_POINT_BYTE5_SMM_READY_TO_LOCK_SMM_MEMORY_ATTRIBUTE_TABLE_FUNCTIONAL_ERROR_CODE \
TEST_POINT_SMM_READY_TO_LOCK \
TEST_POINT_BYTE5_SMM_READY_TO_LOCK_SMM_MEMORY_ATTRIBUTE_TABLE_FUNCTIONAL_ERROR_STRING
);
}
DEBUG ((DEBUG_INFO, "==== TestPointCheckSmmMemAttribute - Exit\n"));
return Status;
}
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