[mirror_edk2.git] / IntelFsp2Pkg / Library / SecFspSecPlatformLibNull / X64 / SecCarInit.nasm

;; @file\r
;  SEC CAR function\r
;\r
; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>\r
; SPDX-License-Identifier: BSD-2-Clause-Patent\r
;;\r
\r
;\r
; Define assembler characteristics\r
;\r
\r
%macro RET_RSI 0\r
\r
  movd    rsi, mm7                      ; move ReturnAddress from MM7 to RSI\r
  jmp     rsi\r
\r
%endmacro\r
\r
SECTION .text\r
\r
;-----------------------------------------------------------------------------\r
;\r
;  Section:     SecCarInit\r
;\r
;  Description: This function initializes the Cache for Data, Stack, and Code\r
;\r
;-----------------------------------------------------------------------------\r
global ASM_PFX(SecCarInit)\r
ASM_PFX(SecCarInit):\r
\r
  ;\r
  ; Set up CAR\r
  ;\r
\r
  xor    rax, rax\r
\r
SecCarInitExit:\r
\r
  RET_RSI\r
\r
Commit	Line	Data
6bec5a66 TK	1	;; @file\r
	2	; SEC CAR function\r
	3	;\r
	4	; Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>\r
	5	; SPDX-License-Identifier: BSD-2-Clause-Patent\r
	6	;;\r
	7	\r
	8	;\r
	9	; Define assembler characteristics\r
	10	;\r
	11	\r
	12	%macro RET_RSI 0\r
	13	\r
	14	movd rsi, mm7 ; move ReturnAddress from MM7 to RSI\r
	15	jmp rsi\r
	16	\r
	17	%endmacro\r
	18	\r
	19	SECTION .text\r
	20	\r
	21	;-----------------------------------------------------------------------------\r
	22	;\r
	23	; Section: SecCarInit\r
	24	;\r
	25	; Description: This function initializes the Cache for Data, Stack, and Code\r
	26	;\r
	27	;-----------------------------------------------------------------------------\r
	28	global ASM_PFX(SecCarInit)\r
	29	ASM_PFX(SecCarInit):\r
	30	\r
	31	;\r
	32	; Set up CAR\r
	33	;\r
	34	\r
	35	xor rax, rax\r
	36	\r
	37	SecCarInitExit:\r
	38	\r
	39	RET_RSI\r
	40	\r