diff options
| author | RARelph <44270374+RARelph@users.noreply.github.com> | 2025-10-31 01:02:27 +0300 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2025-11-04 09:51:50 +0300 |
| commit | b98ccecdecec0bb768e6e5bd4df1694de87ad42f (patch) | |
| tree | bf65937fbfd27d509fca19af61996efdf20169f1 /MdePkg/Include/Library | |
| parent | 8058a94f60a129476a7955ee839cec96467b9bef (diff) | |
| download | edk2-b98ccecdecec0bb768e6e5bd4df1694de87ad42f.tar.xz | |
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>
Diffstat (limited to 'MdePkg/Include/Library')
| -rw-r--r-- | MdePkg/Include/Library/BaseLib.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h index b50a1d5ecd..a2b5b01f17 100644 --- a/MdePkg/Include/Library/BaseLib.h +++ b/MdePkg/Include/Library/BaseLib.h @@ -5396,6 +5396,18 @@ TdIsEnabled ( VOID
);
+/**
+ Probe if running as some kind of SEV guest.
+
+ @return FALSE Not running as a guest under any kind of SEV
+ @return TRUE Running as a guest under any kind of SEV
+**/
+BOOLEAN
+EFIAPI
+SevGuestIsEnabled (
+ VOID
+ );
+
#if defined (MDE_CPU_X64)
//
// The page size for the PVALIDATE instruction
|