b98ccecdecec0bb768e6e5bd4df1694de87ad42f - edk2

commit: b98ccecdecec0bb768e6e5bd4df1694de87ad42f
[log] [tgz]
author: RARelph <44270374+RARelph@users.noreply.github.com>
Thu Oct 30 17:02:27 2025 -0500
committer: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
Tue Nov 04 06:51:50 2025 +0000
tree: bf65937fbfd27d509fca19af61996efdf20169f1
parent: 8058a94f60a129476a7955ee839cec96467b9bef [diff]

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 <richard.relph@amd.com>

MdePkg/Include/Library/BaseLib.h[diff]
MdePkg/Library/BaseLib/AmdSevNull.c[Added - diff]
MdePkg/Library/BaseLib/BaseLib.inf[diff]
MdePkg/Library/BaseLib/UnitTestHostBaseLib.inf[diff]
MdePkg/Library/BaseLib/X64/SevProbe.c[Added - diff]

5 files changed