diff options
Diffstat (limited to '')
| -rw-r--r-- | src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseLib/Arm/CpuPause.asm | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseLib/Arm/CpuPause.asm b/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseLib/Arm/CpuPause.asm new file mode 100644 index 00000000..48b0cb6e --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseLib/Arm/CpuPause.asm @@ -0,0 +1,35 @@ +;------------------------------------------------------------------------------ +; +; CpuPause() for ARM +; +; Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> +; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> +; SPDX-License-Identifier: BSD-2-Clause-Patent +; +;------------------------------------------------------------------------------ + + EXPORT CpuPause + AREA cpu_pause, CODE, READONLY + +;/** +; Requests CPU to pause for a short period of time. +; +; Requests CPU to pause for a short period of time. Typically used in MP +; systems to prevent memory starvation while waiting for a spin lock. +; +;**/ +;VOID +;EFIAPI +;CpuPause ( +; VOID +; ); +; +CpuPause + NOP + NOP + NOP + NOP + NOP + BX LR + + END |