diff options
Diffstat (limited to 'OvmfPkg/ResetVector/ResetVector.nasmb')
| -rw-r--r-- | OvmfPkg/ResetVector/ResetVector.nasmb | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/OvmfPkg/ResetVector/ResetVector.nasmb b/OvmfPkg/ResetVector/ResetVector.nasmb index fbaeab5f51..cc364748b5 100644 --- a/OvmfPkg/ResetVector/ResetVector.nasmb +++ b/OvmfPkg/ResetVector/ResetVector.nasmb @@ -107,6 +107,19 @@ %define SEV_SNP_SECRETS_SIZE (FixedPcdGet32 (PcdOvmfSnpSecretsSize))
%define CPUID_BASE (FixedPcdGet32 (PcdOvmfCpuidBase))
%define CPUID_SIZE (FixedPcdGet32 (PcdOvmfCpuidSize))
+ %define SNP_SEC_MEM_BASE_DESC_1 (FixedPcdGet32 (PcdOvmfSecPageTablesBase))
+ %define SNP_SEC_MEM_SIZE_DESC_1 (FixedPcdGet32 (PcdOvmfSecGhcbBase) - SNP_SEC_MEM_BASE_DESC_1)
+ ;
+ ; The PcdOvmfSecGhcbBase reserves two GHCB pages. The first page is used
+ ; as GHCB shared page and second is used for bookkeeping to support the
+ ; nested GHCB in SEC phase. The bookkeeping page is mapped private. The VMM
+ ; does not need to validate the shared page but it need to validate the
+ ; bookkeeping page.
+ ;
+ %define SNP_SEC_MEM_BASE_DESC_2 (GHCB_BASE + 0x1000)
+ %define SNP_SEC_MEM_SIZE_DESC_2 (SEV_SNP_SECRETS_BASE - SNP_SEC_MEM_BASE_DESC_2)
+ %define SNP_SEC_MEM_BASE_DESC_3 (CPUID_BASE + CPUID_SIZE)
+ %define SNP_SEC_MEM_SIZE_DESC_3 (FixedPcdGet32 (PcdOvmfPeiMemFvBase) - SNP_SEC_MEM_BASE_DESC_3)
%include "X64/IntelTdxMetadata.asm"
%include "Ia32/Flat32ToFlat64.asm"
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