diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/X64/Lfence.nasm')
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/Lfence.nasm | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/X64/Lfence.nasm b/MdePkg/Library/BaseLib/X64/Lfence.nasm new file mode 100644 index 000000000000..3b645fc5bc38 --- /dev/null +++ b/MdePkg/Library/BaseLib/X64/Lfence.nasm @@ -0,0 +1,31 @@ +;------------------------------------------------------------------------------ ; +; Copyright (c) 2018, Intel Corporation. All rights reserved.<BR> +; SPDX-License-Identifier: BSD-2-Clause-Patent +; +; Module Name: +; +; Lfence.nasm +; +; Abstract: +; +; Performs a serializing operation on all load-from-memory instructions that +; were issued prior to the call of this function. +; +; Notes: +; +;------------------------------------------------------------------------------ + + DEFAULT REL + SECTION .text + +;------------------------------------------------------------------------------ +; VOID +; EFIAPI +; AsmLfence ( +; VOID +; ); +;------------------------------------------------------------------------------ +global ASM_PFX(AsmLfence) +ASM_PFX(AsmLfence): + lfence + ret |