diff options
Diffstat (limited to 'OvmfPkg/PlatformPei')
| -rw-r--r-- | OvmfPkg/PlatformPei/AmdSev.c | 11 | ||||
| -rw-r--r-- | OvmfPkg/PlatformPei/PlatformPei.inf | 2 |
2 files changed, 13 insertions, 0 deletions
diff --git a/OvmfPkg/PlatformPei/AmdSev.c b/OvmfPkg/PlatformPei/AmdSev.c index a9de33074a..e6724cf493 100644 --- a/OvmfPkg/PlatformPei/AmdSev.c +++ b/OvmfPkg/PlatformPei/AmdSev.c @@ -555,5 +555,16 @@ SevInitializeRam ( (UINT64)(UINTN)PcdGet32 (PcdOvmfCpuidSize),
EfiReservedMemoryType
);
+
+ //
+ // The calling area memory needs to be protected until the OS can create
+ // its own calling area. Mark it as EfiReservedMemoryType so that the
+ // guest firmware and OS do not use it as a system memory.
+ //
+ BuildMemoryAllocationHob (
+ (EFI_PHYSICAL_ADDRESS)(UINTN)PcdGet32 (PcdOvmfSecSvsmCaaBase),
+ (UINT64)(UINTN)PcdGet32 (PcdOvmfSecSvsmCaaSize),
+ EfiReservedMemoryType
+ );
}
}
diff --git a/OvmfPkg/PlatformPei/PlatformPei.inf b/OvmfPkg/PlatformPei/PlatformPei.inf index 2206316fec..20b1b98292 100644 --- a/OvmfPkg/PlatformPei/PlatformPei.inf +++ b/OvmfPkg/PlatformPei/PlatformPei.inf @@ -128,6 +128,8 @@ gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesData
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecGhcbBackupBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecGhcbBackupSize
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecSvsmCaaBase
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecSvsmCaaSize
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaSize
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSnpSecretsBase
|