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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 <Uefi.h>
#include <PiPei.h>
#include <Library/TestPointCheckLib.h>
#include <Library/TestPointLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/HobLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/PeiServicesTablePointerLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Guid/SmramMemoryReserve.h>
#include <Ppi/SmmAccess.h>
CHAR8 *mSmramStateName[] = {
"Open",
"Closed",
"Locked",
"Cacheable",
"Allocated",
"NeedTest",
"NeedEccInit",
};
VOID
DumpSmramDescriptor (
IN UINTN NumberOfSmmReservedRegions,
IN EFI_SMRAM_DESCRIPTOR *Descriptor
)
{
UINTN Index;
UINTN BitIndex;
for (Index = 0; Index < NumberOfSmmReservedRegions; Index++) {
DEBUG ((DEBUG_INFO,
" BA=%016lx (A=%016lx) L=%016lx State=%016lx",
Descriptor[Index].PhysicalStart,
Descriptor[Index].CpuStart,
Descriptor[Index].PhysicalSize,
Descriptor[Index].RegionState
));
DEBUG ((DEBUG_INFO, " ("));
for (BitIndex = 0; BitIndex < sizeof(mSmramStateName)/sizeof(mSmramStateName[0]); BitIndex++) {
if ((Descriptor[Index].RegionState & LShiftU64 (1, BitIndex)) != 0) {
DEBUG ((DEBUG_INFO, mSmramStateName[BitIndex]));
DEBUG ((DEBUG_INFO, ","));
}
}
DEBUG ((DEBUG_INFO, ")\n"));
}
}
EFI_STATUS
CheckSmramDescriptor (
IN UINTN NumberOfSmmReservedRegions,
IN EFI_SMRAM_DESCRIPTOR *Descriptor
)
{
UINTN Index;
UINT64 Base;
UINT64 Length;
Base = 0;
Length = 0;
for (Index = 0; Index < NumberOfSmmReservedRegions; Index++) {
if (Base == 0) {
Base = Descriptor[Index].PhysicalStart;
Length = Descriptor[Index].PhysicalSize;
} else {
if (Base + Length == Descriptor[Index].PhysicalStart) {
Length = Length + Descriptor[Index].PhysicalSize;
} else if (Descriptor[Index].PhysicalStart + Descriptor[Index].PhysicalSize == Base) {
Base = Descriptor[Index].PhysicalStart;
Length = Length + Descriptor[Index].PhysicalSize;
} else {
DEBUG ((DEBUG_ERROR, "Smram is not adjacent\n"));
TestPointLibAppendErrorString (
PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV,
NULL,
TEST_POINT_BYTE1_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_CODE \
TEST_POINT_END_OF_PEI \
TEST_POINT_BYTE1_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_STRING
);
return EFI_INVALID_PARAMETER;
}
}
}
if (Length != GetPowerOfTwo64 (Length)) {
DEBUG ((DEBUG_ERROR, "Smram is not aligned\n"));
TestPointLibAppendErrorString (
PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV,
NULL,
TEST_POINT_BYTE1_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_CODE \
TEST_POINT_MEMORY_DISCOVERED \
TEST_POINT_BYTE1_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_STRING
);
return EFI_INVALID_PARAMETER;
}
return EFI_SUCCESS;
}
#if 0
EFI_STATUS
TestPointCheckSmramHob (
VOID
)
{
EFI_PEI_HOB_POINTERS Hob;
EFI_SMRAM_HOB_DESCRIPTOR_BLOCK *SmramHobDescriptorBlock;
UINT64 Base;
UINT64 Length;
UINTN Index;
DEBUG ((DEBUG_INFO, "==== TestPointCheckSmramHob - Enter\n"));
Hob.Raw = GetHobList ();
DEBUG ((DEBUG_INFO, "SMRAM HOB\n"));
while (!END_OF_HOB_LIST (Hob)) {
if (Hob.Header->HobType == EFI_HOB_TYPE_GUID_EXTENSION) {
if (CompareGuid (&Hob.Guid->Name, &gEfiSmmPeiSmramMemoryReserveGuid)) {
SmramHobDescriptorBlock = (EFI_SMRAM_HOB_DESCRIPTOR_BLOCK *) (Hob.Guid + 1);
DumpSmramDescriptor (SmramHobDescriptorBlock->NumberOfSmmReservedRegions, SmramHobDescriptorBlock->Descriptor);
break;
}
}
Hob.Raw = GET_NEXT_HOB (Hob);
}
DEBUG ((DEBUG_INFO, "==== TestPointCheckSmramHob - Exit\n"));
Base = 0;
Length = 0;
Hob.Raw = GetHobList ();
while (!END_OF_HOB_LIST (Hob)) {
if (Hob.Header->HobType == EFI_HOB_TYPE_GUID_EXTENSION) {
if (CompareGuid (&Hob.Guid->Name, &gEfiSmmPeiSmramMemoryReserveGuid)) {
SmramHobDescriptorBlock = (EFI_SMRAM_HOB_DESCRIPTOR_BLOCK *) (Hob.Guid + 1);
for (Index = 0; Index < SmramHobDescriptorBlock->NumberOfSmmReservedRegions; Index++) {
if (Base == 0) {
Base = SmramHobDescriptorBlock->Descriptor[Index].PhysicalStart;
Length = SmramHobDescriptorBlock->Descriptor[Index].PhysicalSize;
} else {
if (Base + Length == SmramHobDescriptorBlock->Descriptor[Index].PhysicalStart) {
Length = Length + SmramHobDescriptorBlock->Descriptor[Index].PhysicalSize;
} else if (SmramHobDescriptorBlock->Descriptor[Index].PhysicalStart + SmramHobDescriptorBlock->Descriptor[Index].PhysicalSize == Base) {
Base = SmramHobDescriptorBlock->Descriptor[Index].PhysicalStart;
Length = Length + SmramHobDescriptorBlock->Descriptor[Index].PhysicalSize;
} else {
DEBUG ((DEBUG_ERROR, "SmramHob is not adjacent\n"));
TestPointLibAppendErrorString (
PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV,
NULL,
TEST_POINT_BYTE1_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_CODE \
TEST_POINT_END_OF_PEI \
TEST_POINT_BYTE1_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_STRING
);
return EFI_INVALID_PARAMETER;
}
}
}
break;
}
}
Hob.Raw = GET_NEXT_HOB (Hob);
}
if (Length != GetPowerOfTwo64 (Length)) {
DEBUG ((DEBUG_ERROR, "SmramHob is not aligned\n"));
TestPointLibAppendErrorString (
PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV,
NULL,
TEST_POINT_BYTE1_MEMORY_DISCOVERED_MEMORY_RESOURCE_FUNCTIONAL_ERROR_CODE \
TEST_POINT_MEMORY_DISCOVERED \
TEST_POINT_BYTE1_MEMORY_DISCOVERED_MEMORY_RESOURCE_FUNCTIONAL_ERROR_STRING
);
return EFI_INVALID_PARAMETER;
}
return EFI_SUCCESS;
}
#endif
EFI_STATUS
TestPointCheckSmmInfoPei (
VOID
)
{
EFI_STATUS Status;
PEI_SMM_ACCESS_PPI *SmmAccess;
UINTN Size;
EFI_SMRAM_DESCRIPTOR *SmramRanges;
DEBUG ((DEBUG_INFO, "==== TestPointCheckSmmInfoPei - Enter\n"));
Status = PeiServicesLocatePpi (&gPeiSmmAccessPpiGuid, 0, NULL, (VOID **)&SmmAccess);
if (EFI_ERROR (Status)) {
Status = EFI_SUCCESS;
goto Done ;
}
Size = 0;
Status = SmmAccess->GetCapabilities ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, &Size, NULL);
ASSERT (Status == EFI_BUFFER_TOO_SMALL);
SmramRanges = (EFI_SMRAM_DESCRIPTOR *) AllocateZeroPool (Size);
ASSERT (SmramRanges != NULL);
Status = SmmAccess->GetCapabilities ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, &Size, SmramRanges);
ASSERT_EFI_ERROR (Status);
DEBUG ((DEBUG_INFO, "SMRAM Info\n"));
DumpSmramDescriptor (Size / sizeof (EFI_SMRAM_DESCRIPTOR), SmramRanges);
Status = CheckSmramDescriptor (Size / sizeof (EFI_SMRAM_DESCRIPTOR), SmramRanges);
FreePool (SmramRanges);
Done:
DEBUG ((DEBUG_INFO, "==== TestPointCheckSmmInfoPei - Exit\n"));
return Status;
}
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