diff options
Diffstat (limited to 'OvmfPkg')
| -rw-r--r-- | OvmfPkg/Library/PlatformInitLib/IntelTdx.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/OvmfPkg/Library/PlatformInitLib/IntelTdx.c b/OvmfPkg/Library/PlatformInitLib/IntelTdx.c index e561cee30b..12e4501c5b 100644 --- a/OvmfPkg/Library/PlatformInitLib/IntelTdx.c +++ b/OvmfPkg/Library/PlatformInitLib/IntelTdx.c @@ -154,6 +154,18 @@ PlatformTdxPublishRamRegions ( TransferTdxHobList ();
//
+ // Reserve the initial page tables built by the reset vector code.
+ //
+ // Since this memory range will be used by APs on Mailbox
+ // wakeup, it must be reserved as ACPI NVS.
+ //
+ BuildMemoryAllocationHob (
+ (EFI_PHYSICAL_ADDRESS)(UINTN)PcdGet32 (PcdOvmfSecPageTablesBase),
+ (UINT64)(UINTN)PcdGet32 (PcdOvmfSecPageTablesSize),
+ EfiACPIMemoryNVS
+ );
+
+ //
// The memory region defined by PcdOvmfSecGhcbBackupBase is pre-allocated by
// host VMM and used as the td mailbox at the beginning of system boot.
//
|