Branch: refs/heads/master
Home: https://github.com/tianocore/edk2
Commit: b98ccecdecec0bb768e6e5bd4df1694de87ad42f
https://github.com/tianocore/edk2/commit/b98ccecdecec0bb768e6e5bd4df1694de87ad42f
Author: RARelph <[email protected]>
Date: 2025-11-04 (Tue, 04 Nov 2025)
Changed paths:
M MdePkg/Include/Library/BaseLib.h
A MdePkg/Library/BaseLib/AmdSevNull.c
M MdePkg/Library/BaseLib/BaseLib.inf
M MdePkg/Library/BaseLib/UnitTestHostBaseLib.inf
A MdePkg/Library/BaseLib/X64/SevProbe.c
Log Message:
-----------
MdePkg: Add code to detect running as an SEV guest
Similar to Intel's Tdx, we need a mechanism to detect running as
an AMD SEV guest that will work in all phases everywhere. This
will be immediately used to prevent usage of MTRRs with SEV guests.
Signed-off-by: Richard Relph <[email protected]>
Commit: 05b677c9de2cb3c4486736eb795c12e8008c3797
https://github.com/tianocore/edk2/commit/05b677c9de2cb3c4486736eb795c12e8008c3797
Author: RARelph <[email protected]>
Date: 2025-11-04 (Tue, 04 Nov 2025)
Changed paths:
M UefiCpuPkg/Library/MtrrLib/MtrrLib.c
Log Message:
-----------
UefiCpuPkg/MtrrLib: Prevent MTRR usage with SEV guests
Confidential computing guests do not support MTRR emulation.
This is as true for AMD SEV as it is for Intel's Tdx.
Signed-off-by: Richard Relph <[email protected]>
Compare: https://github.com/tianocore/edk2/compare/8058a94f60a1...05b677c9de2c
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