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UefiCpuPkg/PiSmmCpu: Check GCD and UEFI mem attrib table.

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1) UefiCpuPkg/PiSmmCpu: Check for untested memory in GCD

It treats GCD untested memory as invalid SMM
communication buffer.

2) UefiCpuPkg/PiSmmCpu: Check EFI_RUNTIME_RO in UEFI mem attrib table.

It treats the UEFI runtime page with EFI_MEMORY_RO attribute as
invalid SMM communication buffer.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Jiewen Yao
2018-01-04 10:37:42 +08:00
parent dcfd55d97a
commit c4c7fb388e
4 changed files with 218 additions and 28 deletions
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1
UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf
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@@ -136,6 +136,7 @@
gEfiAcpi20TableGuid ## SOMETIMES_CONSUMES ## SystemTable
gEfiAcpi10TableGuid ## SOMETIMES_CONSUMES ## SystemTable
gEdkiiPiSmmMemoryAttributesTableGuid ## CONSUMES ## SystemTable
gEfiMemoryAttributesTableGuid ## CONSUMES ## SystemTable
[FeaturePcd]
gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmDebug ## CONSUMES