diff options
| -rw-r--r-- | OvmfPkg/PlatformPei/MemDetect.c | 14 | ||||
| -rw-r--r-- | OvmfPkg/PlatformPei/PlatformPei.inf | 2 |
2 files changed, 16 insertions, 0 deletions
diff --git a/OvmfPkg/PlatformPei/MemDetect.c b/OvmfPkg/PlatformPei/MemDetect.c index d35ee53c77..37030e6898 100644 --- a/OvmfPkg/PlatformPei/MemDetect.c +++ b/OvmfPkg/PlatformPei/MemDetect.c @@ -203,5 +203,19 @@ InitializeRamRegions ( PcdGet32 (PcdOvmfSecPeiTempRamSize),
EfiACPIMemoryNVS
);
+
+#ifdef MDE_CPU_X64
+ //
+ // Reserve the initial page tables built by the reset vector code.
+ //
+ // Since this memory range will be used by the Reset Vector on S3
+ // resume, it must be reserved as ACPI NVS.
+ //
+ BuildMemoryAllocationHob (
+ (EFI_PHYSICAL_ADDRESS)(UINTN) PcdGet32 (PcdOvmfSecPageTablesBase),
+ (UINT64)(UINTN) PcdGet32 (PcdOvmfSecPageTablesSize),
+ EfiACPIMemoryNVS
+ );
+#endif
}
}
diff --git a/OvmfPkg/PlatformPei/PlatformPei.inf b/OvmfPkg/PlatformPei/PlatformPei.inf index b8b140b8c7..c91513882a 100644 --- a/OvmfPkg/PlatformPei/PlatformPei.inf +++ b/OvmfPkg/PlatformPei/PlatformPei.inf @@ -68,6 +68,8 @@ gUefiOvmfPkgTokenSpaceGuid.PcdS3AcpiReservedMemoryBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesBase
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesSize
gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdS3AcpiReservedMemorySize
gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize
|