From: Min M Xu <[email protected]> EmuVariableNvStore is reserved and init with below 2 functions defined in PlatformInitLib: - PlatformReserveEmuVariableNvStore - PlatformInitEmuVariableNvStore
PlatformInitEmuVariableNvStore works when secure boot feature is enabled. This is because secure boot needs the EFI variables (PK/KEK/DB/DBX, etc) and EmuVariableNvStore is cleared when OVMF is launched with -bios parameter. Cc: Erdem Aktas <[email protected]> Cc: James Bottomley <[email protected]> [jejb] Cc: Jiewen Yao <[email protected]> [jyao1] Cc: Tom Lendacky <[email protected]> [tlendacky] Cc: Gerd Hoffmann <[email protected]> Signed-off-by: Min Xu <[email protected]> --- OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c b/OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c index fdfefd00d732..663d5dacd3da 100644 --- a/OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c +++ b/OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c @@ -42,6 +42,7 @@ InitializePlatform ( ) { UINT32 LowerMemorySize; + VOID *VariableStore; DEBUG ((DEBUG_INFO, "InitializePlatform in Pei-less boot\n")); PlatformDebugDumpCmos (); @@ -79,6 +80,12 @@ InitializePlatform ( LowerMemorySize )); + VariableStore = PlatformReserveEmuVariableNvStore (); + PlatformInfoHob->PcdEmuVariableNvStoreReserved = (UINT64)(UINTN)VariableStore; + #ifdef SECURE_BOOT_FEATURE_ENABLED + PlatformInitEmuVariableNvStore (VariableStore); + #endif + if (TdIsEnabled ()) { PlatformTdxPublishRamRegions (); } else { -- 2.29.2.windows.2 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#90758): https://edk2.groups.io/g/devel/message/90758 Mute This Topic: https://groups.io/mt/91995194/21656 Group Owner: [email protected] Unsubscribe: https://edk2.groups.io/g/devel/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
