1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * Function calling ABI conversion from Linux to EFI for x86_64 |
4 | * |
5 | * Copyright (C) 2007 Intel Corp |
6 | * Bibo Mao <bibo.mao@intel.com> |
7 | * Huang Ying <ying.huang@intel.com> |
8 | */ |
9 | |
10 | #include <linux/linkage.h> |
11 | #include <asm/nospec-branch.h> |
12 | |
13 | SYM_FUNC_START(__efi_call) |
14 | pushq %rbp |
15 | movq %rsp, %rbp |
16 | and $~0xf, %rsp |
17 | mov 16(%rbp), %rax |
18 | subq $48, %rsp |
19 | mov %r9, 32(%rsp) |
20 | mov %rax, 40(%rsp) |
21 | mov %r8, %r9 |
22 | mov %rcx, %r8 |
23 | mov %rsi, %rcx |
24 | CALL_NOSPEC rdi |
25 | leave |
26 | RET |
27 | SYM_FUNC_END(__efi_call) |
28 | |