/* 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)
        /*
         * The EFI code doesn't have any CFI, annotate away the CFI violation.
         */
        ANNOTATE_NOCFI_SYM
        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)