From: Tom Lendacky <thomas.lenda...@amd.com>
Under SEV-ES, a INVD intercept generates a #VC exception. VMGEXIT must be
used to allow the hypervisor to handle this intercept.
Signed-off-by: Tom Lendacky <thomas.lenda...@amd.com>
---
.../X64/AMDSevVcCommon.c | 22 +++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/AMDSevVcCommon.c
b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/AMDSevVcCommon.c
index 6c3e7f67f6cb..3f10af401aa0 100644
--- a/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/AMDSevVcCommon.c
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/AMDSevVcCommon.c
@@ -818,6 +818,24 @@ IoioExit (
return 0;
}
+STATIC
+UINTN
+InvdExit (
+ GHCB *Ghcb,
+ EFI_SYSTEM_CONTEXT_X64 *Regs,
+ SEV_ES_INSTRUCTION_DATA *InstructionData
+ )
+{
+ UINTN Status;
+
+ Status = VmgExit (Ghcb, SvmExitInvd, 0, 0);
+ if (Status) {
+ return Status;
+ }
+
+ return 0;
+}
+
STATIC
UINTN
CpuidExit (
@@ -940,6 +958,10 @@ DoVcCommon (
NaeExit = CpuidExit;
break;
+ case SvmExitInvd:
+ NaeExit = InvdExit;
+ break;
+
case SvmExitIoioProt:
NaeExit = IoioExit;
break;
--
2.17.1
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