/* SPDX-License-Identifier: GPL-2.0 */ | |
/* | |
* Function calling ABI conversion from Linux to EFI for x86_64 | |
* | |
* Copyright (C) 2007 Intel Corp | |
* Bibo Mao <bibo.mao@intel.com> | |
* Huang Ying <ying.huang@intel.com> | |
*/ | |
#include <linux/linkage.h> | |
#include <asm/nospec-branch.h> | |
SYM_FUNC_START(__efi_call) | |
pushq %rbp | |
movq %rsp, %rbp | |
and $~0xf, %rsp | |
mov 16(%rbp), %rax | |
subq $48, %rsp | |
mov %r9, 32(%rsp) | |
mov %rax, 40(%rsp) | |
mov %r8, %r9 | |
mov %rcx, %r8 | |
mov %rsi, %rcx | |
CALL_NOSPEC %rdi | |
leave | |
ret | |
SYM_FUNC_END(__efi_call) |