REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1417
Since BaseLib API AsmLfence() is a x86 arch specific API and should be avoided using in generic codes, this commit replaces the usage of AsmLfence() with arch-generic API SpeculationBarrier(). Cc: Ard Biesheuvel <[email protected]> Cc: Jiewen Yao <[email protected]> Cc: Liming Gao <[email protected]> Cc: Jian J Wang <[email protected]> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Hao Wu <[email protected]> --- MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c index 27fcab19b6..481fea3f1f 100644 --- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c +++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c @@ -419,11 +419,11 @@ SmmFaultTolerantWriteHandler ( ); if (!EFI_ERROR (Status)) { // - // The AsmLfence() call here is to ensure the previous range/content - // checks for the CommBuffer have been completed before calling into - // FtwWrite(). + // The SpeculationBarrier() call here is to ensure the previous + // range/content checks for the CommBuffer have been completed before + // calling into FtwWrite(). // - AsmLfence (); + SpeculationBarrier (); Status = FtwWrite( &mFtwDevice->FtwInstance, SmmFtwWriteHeader->Lba, -- 2.12.0.windows.1 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
