[mirror_edk2.git] / ArmPkg / Library / ArmSmcPsciResetSystemLib / AArch64 / Reset.S

/** @file
  ResetSystemLib implementation using PSCI calls

  Copyright (c) 2018, Linaro Ltd. All rights reserved.<BR>

  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include <AsmMacroIoLibV8.h>

ASM_FUNC(DisableMmuAndReenterPei)
  stp   x29, x30, [sp, #-16]!
  mov   x29, sp

  bl    ArmDisableMmu

  // no memory accesses after MMU and caches have been disabled

  MOV64 (x0, FixedPcdGet64 (PcdFvBaseAddress))
  blr   x0

  // never returns
  nop
Commit	Line	Data
6556224e AB	1	/** @file
	2	ResetSystemLib implementation using PSCI calls
	3
	4	Copyright (c) 2018, Linaro Ltd. All rights reserved.<BR>
	5
4059386c	6	SPDX-License-Identifier: BSD-2-Clause-Patent
6556224e AB	7
	8	**/
	9
	10	#include <AsmMacroIoLibV8.h>
	11
	12	ASM_FUNC(DisableMmuAndReenterPei)
	13	stp x29, x30, [sp, #-16]!
	14	mov x29, sp
	15
	16	bl ArmDisableMmu
	17
	18	// no memory accesses after MMU and caches have been disabled
	19
	20	MOV64 (x0, FixedPcdGet64 (PcdFvBaseAddress))
	21	blr x0
	22
	23	// never returns
	24	nop