/** @file
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Copyright (c) 2017 - 2019, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Uefi.h>
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#include <PiPei.h>
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#include <Library/TestPointCheckLib.h>
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#include <Library/TestPointLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/HobLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/PeiServicesTablePointerLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Guid/SmramMemoryReserve.h>
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#include <Ppi/SmmAccess.h>
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CHAR8 *mSmramStateName[] = {
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"Open",
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"Closed",
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"Locked",
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"Cacheable",
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"Allocated",
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"NeedTest",
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"NeedEccInit",
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};
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VOID
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DumpSmramDescriptor (
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IN UINTN NumberOfSmmReservedRegions,
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IN EFI_SMRAM_DESCRIPTOR *Descriptor
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)
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{
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UINTN Index;
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UINTN BitIndex;
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for (Index = 0; Index < NumberOfSmmReservedRegions; Index++) {
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DEBUG ((DEBUG_INFO,
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" BA=%016lx (A=%016lx) L=%016lx State=%016lx",
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Descriptor[Index].PhysicalStart,
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Descriptor[Index].CpuStart,
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Descriptor[Index].PhysicalSize,
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Descriptor[Index].RegionState
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));
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DEBUG ((DEBUG_INFO, " ("));
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for (BitIndex = 0; BitIndex < sizeof(mSmramStateName)/sizeof(mSmramStateName[0]); BitIndex++) {
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if ((Descriptor[Index].RegionState & LShiftU64 (1, BitIndex)) != 0) {
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DEBUG ((DEBUG_INFO, mSmramStateName[BitIndex]));
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DEBUG ((DEBUG_INFO, ","));
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}
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}
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DEBUG ((DEBUG_INFO, ")\n"));
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}
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}
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EFI_STATUS
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CheckSmramDescriptor (
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IN UINTN NumberOfSmmReservedRegions,
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IN EFI_SMRAM_DESCRIPTOR *Descriptor
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)
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{
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UINTN Index;
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UINT64 Base;
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UINT64 Length;
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Base = 0;
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Length = 0;
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for (Index = 0; Index < NumberOfSmmReservedRegions; Index++) {
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if (Base == 0) {
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Base = Descriptor[Index].PhysicalStart;
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Length = Descriptor[Index].PhysicalSize;
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} else {
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if (Base + Length == Descriptor[Index].PhysicalStart) {
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Length = Length + Descriptor[Index].PhysicalSize;
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} else if (Descriptor[Index].PhysicalStart + Descriptor[Index].PhysicalSize == Base) {
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Base = Descriptor[Index].PhysicalStart;
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Length = Length + Descriptor[Index].PhysicalSize;
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} else {
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DEBUG ((DEBUG_ERROR, "Smram is not adjacent\n"));
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TestPointLibAppendErrorString (
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PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV,
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NULL,
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TEST_POINT_BYTE2_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_CODE \
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TEST_POINT_END_OF_PEI \
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TEST_POINT_BYTE2_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_STRING
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);
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return EFI_INVALID_PARAMETER;
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}
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}
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}
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if (Length != GetPowerOfTwo64 (Length)) {
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DEBUG ((DEBUG_ERROR, "Smram is not aligned\n"));
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TestPointLibAppendErrorString (
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PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV,
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NULL,
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TEST_POINT_BYTE2_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_CODE \
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TEST_POINT_MEMORY_DISCOVERED \
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TEST_POINT_BYTE2_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_STRING
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);
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return EFI_INVALID_PARAMETER;
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}
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return EFI_SUCCESS;
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}
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#if 0
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EFI_STATUS
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TestPointCheckSmramHob (
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VOID
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)
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{
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EFI_PEI_HOB_POINTERS Hob;
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EFI_SMRAM_HOB_DESCRIPTOR_BLOCK *SmramHobDescriptorBlock;
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UINT64 Base;
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UINT64 Length;
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UINTN Index;
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DEBUG ((DEBUG_INFO, "==== TestPointCheckSmramHob - Enter\n"));
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Hob.Raw = GetHobList ();
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DEBUG ((DEBUG_INFO, "SMRAM HOB\n"));
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while (!END_OF_HOB_LIST (Hob)) {
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if (Hob.Header->HobType == EFI_HOB_TYPE_GUID_EXTENSION) {
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if (CompareGuid (&Hob.Guid->Name, &gEfiSmmSmramMemoryGuid)) {
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SmramHobDescriptorBlock = (EFI_SMRAM_HOB_DESCRIPTOR_BLOCK *) (Hob.Guid + 1);
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DumpSmramDescriptor (SmramHobDescriptorBlock->NumberOfSmmReservedRegions, SmramHobDescriptorBlock->Descriptor);
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break;
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}
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}
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Hob.Raw = GET_NEXT_HOB (Hob);
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}
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DEBUG ((DEBUG_INFO, "==== TestPointCheckSmramHob - Exit\n"));
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Base = 0;
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Length = 0;
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Hob.Raw = GetHobList ();
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while (!END_OF_HOB_LIST (Hob)) {
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if (Hob.Header->HobType == EFI_HOB_TYPE_GUID_EXTENSION) {
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if (CompareGuid (&Hob.Guid->Name, &gEfiSmmSmramMemoryGuid)) {
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SmramHobDescriptorBlock = (EFI_SMRAM_HOB_DESCRIPTOR_BLOCK *) (Hob.Guid + 1);
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for (Index = 0; Index < SmramHobDescriptorBlock->NumberOfSmmReservedRegions; Index++) {
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if (Base == 0) {
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Base = SmramHobDescriptorBlock->Descriptor[Index].PhysicalStart;
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Length = SmramHobDescriptorBlock->Descriptor[Index].PhysicalSize;
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} else {
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if (Base + Length == SmramHobDescriptorBlock->Descriptor[Index].PhysicalStart) {
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Length = Length + SmramHobDescriptorBlock->Descriptor[Index].PhysicalSize;
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} else if (SmramHobDescriptorBlock->Descriptor[Index].PhysicalStart + SmramHobDescriptorBlock->Descriptor[Index].PhysicalSize == Base) {
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Base = SmramHobDescriptorBlock->Descriptor[Index].PhysicalStart;
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Length = Length + SmramHobDescriptorBlock->Descriptor[Index].PhysicalSize;
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} else {
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DEBUG ((DEBUG_ERROR, "SmramHob is not adjacent\n"));
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TestPointLibAppendErrorString (
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PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV,
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NULL,
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TEST_POINT_BYTE2_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_CODE \
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TEST_POINT_END_OF_PEI \
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TEST_POINT_BYTE2_END_OF_PEI_SYSTEM_RESOURCE_FUNCTIONAL_ERROR_STRING
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);
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return EFI_INVALID_PARAMETER;
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}
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}
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}
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break;
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}
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}
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Hob.Raw = GET_NEXT_HOB (Hob);
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}
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if (Length != GetPowerOfTwo64 (Length)) {
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DEBUG ((DEBUG_ERROR, "SmramHob is not aligned\n"));
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TestPointLibAppendErrorString (
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PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV,
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NULL,
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TEST_POINT_BYTE1_MEMORY_DISCOVERED_MEMORY_RESOURCE_FUNCTIONAL_ERROR_CODE \
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TEST_POINT_MEMORY_DISCOVERED \
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TEST_POINT_BYTE1_MEMORY_DISCOVERED_MEMORY_RESOURCE_FUNCTIONAL_ERROR_STRING
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);
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return EFI_INVALID_PARAMETER;
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}
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return EFI_SUCCESS;
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}
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#endif
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EFI_STATUS
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TestPointCheckSmmInfoPei (
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VOID
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)
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{
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EFI_STATUS Status;
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PEI_SMM_ACCESS_PPI *SmmAccess;
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UINTN Size;
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EFI_SMRAM_DESCRIPTOR *SmramRanges;
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DEBUG ((DEBUG_INFO, "==== TestPointCheckSmmInfoPei - Enter\n"));
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Status = PeiServicesLocatePpi (&gPeiSmmAccessPpiGuid, 0, NULL, (VOID **)&SmmAccess);
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if (EFI_ERROR (Status)) {
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Status = EFI_SUCCESS;
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goto Done ;
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}
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Size = 0;
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Status = SmmAccess->GetCapabilities ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, &Size, NULL);
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ASSERT (Status == EFI_BUFFER_TOO_SMALL);
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SmramRanges = (EFI_SMRAM_DESCRIPTOR *) AllocateZeroPool (Size);
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ASSERT (SmramRanges != NULL);
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Status = SmmAccess->GetCapabilities ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, &Size, SmramRanges);
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ASSERT_EFI_ERROR (Status);
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DEBUG ((DEBUG_INFO, "SMRAM Info\n"));
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DumpSmramDescriptor (Size / sizeof (EFI_SMRAM_DESCRIPTOR), SmramRanges);
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Status = CheckSmramDescriptor (Size / sizeof (EFI_SMRAM_DESCRIPTOR), SmramRanges);
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FreePool (SmramRanges);
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Done:
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DEBUG ((DEBUG_INFO, "==== TestPointCheckSmmInfoPei - Exit\n"));
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return Status;
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}
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