diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseCpuLib/Arm/CpuSleep.asm')
| -rw-r--r-- | src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseCpuLib/Arm/CpuSleep.asm | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseCpuLib/Arm/CpuSleep.asm b/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseCpuLib/Arm/CpuSleep.asm new file mode 100644 index 00000000..ab17fc3f --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseCpuLib/Arm/CpuSleep.asm @@ -0,0 +1,38 @@ +;------------------------------------------------------------------------------ +; +; CpuSleep() for ARMv7 +; +; ARMv6 versions was: +; MOV r0,#0 +; MCR p15,0,r0,c7,c0,4 ;Wait for Interrupt instruction +; +; But this is a no-op on ARMv7 +; +; Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> +; Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR> +; SPDX-License-Identifier: BSD-2-Clause-Patent +; +;------------------------------------------------------------------------------ + + EXPORT CpuSleep + AREA cpu_sleep, CODE, READONLY + +;/** +; Places the CPU in a sleep state until an interrupt is received. +; +; Places the CPU in a sleep state until an interrupt is received. If interrupts +; are disabled prior to calling this function, then the CPU will be placed in a +; sleep state indefinitely. +; +;**/ +;VOID +;EFIAPI +;CpuSleep ( +; VOID +; ); +; +CpuSleep + WFI + BX LR + + END |