kernel-brax3-ubuntu-touch/arch/x86/platform/efi/efi_stub_64.S
erascape f319b992b1 kernel-5.15: Initial import brax3 UT kernel
* halium configs enabled

Signed-off-by: erascape <erascape@proton.me>
2025-09-23 15:17:10 +00:00

27 lines
523 B
ArmAsm

/* 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)