ArmPkg/ArmSmcPsciResetSystemLib: add missing call to ExitBootServices()

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

diff --git a/ArmPkg/Library/ArmSmcPsciResetSystemLib/AArch64/Reset.asm b/ArmPkg/Library/ArmSmcPsciResetSystemLib/AArch64/Reset.asm
new file mode 100644 (file)
index 0000000..9e30c13
--- /dev/null
+++ b/ArmPkg/Library/ArmSmcPsciResetSystemLib/AArch64/Reset.asm
@@ -0,0 +1,35 @@
+;/** @file
+;  ResetSystemLib implementation using PSCI calls
+;
+;  Copyright (c) 2018, Linaro Ltd. All rights reserved.<BR>
+;
+;  This program and the accompanying materials
+;  are licensed and made available under the terms and conditions of the BSD License
+;  which accompanies this distribution. The full text of the license may be found at
+;  http://opensource.org/licenses/bsd-license.php
+;
+;  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+;  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+;**/
+
+  AREA Reset, CODE, READONLY
+
+  EXPORT DisableMmuAndReenterPei
+  IMPORT ArmDisableMmu
+
+DisableMmuAndReenterPei
+  stp   x29, x30, [sp, #-16]!
+  mov   x29, sp
+
+  bl    ArmDisableMmu
+
+  ; no memory accesses after MMU and caches have been disabled
+
+  movl  x0, FixedPcdGet64 (PcdFvBaseAddress)
+  blr   x0
+
+  ; never returns
+  nop
+
+  END