[mirror_edk2.git] / MdePkg / Library / BaseLib / X64 / Lfence.nasm

;------------------------------------------------------------------------------ ;\r
; Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>\r
; SPDX-License-Identifier: BSD-2-Clause-Patent\r
;\r
; Module Name:\r
;\r
;   Lfence.nasm\r
;\r
; Abstract:\r
;\r
;   Performs a serializing operation on all load-from-memory instructions that\r
;   were issued prior to the call of this function.\r
;\r
; Notes:\r
;\r
;------------------------------------------------------------------------------\r
\r
    DEFAULT REL\r
    SECTION .text\r
\r
;------------------------------------------------------------------------------\r
; VOID\r
; EFIAPI\r
; AsmLfence (\r
;   VOID\r
;   );\r
;------------------------------------------------------------------------------\r
global ASM_PFX(AsmLfence)\r
ASM_PFX(AsmLfence):\r
    lfence\r
    ret\r
Commit	Line	Data
2ecd8299 HW	1	;------------------------------------------------------------------------------ ;\r
2ecd8299 HW	2	; Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>\r
9344f092	3	; SPDX-License-Identifier: BSD-2-Clause-Patent\r
2ecd8299 HW	4	;\r
	5	; Module Name:\r
	6	;\r
	7	; Lfence.nasm\r
	8	;\r
	9	; Abstract:\r
	10	;\r
	11	; Performs a serializing operation on all load-from-memory instructions that\r
	12	; were issued prior to the call of this function.\r
	13	;\r
	14	; Notes:\r
	15	;\r
	16	;------------------------------------------------------------------------------\r
	17	\r
	18	DEFAULT REL\r
	19	SECTION .text\r
	20	\r
	21	;------------------------------------------------------------------------------\r
	22	; VOID\r
	23	; EFIAPI\r
	24	; AsmLfence (\r
	25	; VOID\r
	26	; );\r
	27	;------------------------------------------------------------------------------\r
	28	global ASM_PFX(AsmLfence)\r
	29	ASM_PFX(AsmLfence):\r
	30	lfence\r
	31	ret\r