projects / thirdparty / kernel / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 5b83683f HY |
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> | |
| 0154416a MF |
11 | #include <asm/segment.h> |
| 12 | #include <asm/msr.h> | |
| 13 | #include <asm/processor-flags.h> | |
| 14 | #include <asm/page_types.h> | |
| 5b83683f HY |
15 | |
| 16 | #define SAVE_XMM \ | |
| 17 | mov %rsp, %rax; \ | |
| 18 | subq $0x70, %rsp; \ | |
| 19 | and $~0xf, %rsp; \ | |
| 20 | mov %rax, (%rsp); \ | |
| 21 | mov %cr0, %rax; \ | |
| 22 | clts; \ | |
| 23 | mov %rax, 0x8(%rsp); \ | |
| 24 | movaps %xmm0, 0x60(%rsp); \ | |
| 25 | movaps %xmm1, 0x50(%rsp); \ | |
| 26 | movaps %xmm2, 0x40(%rsp); \ | |
| 27 | movaps %xmm3, 0x30(%rsp); \ | |
| 28 | movaps %xmm4, 0x20(%rsp); \ | |
| 29 | movaps %xmm5, 0x10(%rsp) | |
| 30 | ||
| 31 | #define RESTORE_XMM \ | |
| 32 | movaps 0x60(%rsp), %xmm0; \ | |
| 33 | movaps 0x50(%rsp), %xmm1; \ | |
| 34 | movaps 0x40(%rsp), %xmm2; \ | |
| 35 | movaps 0x30(%rsp), %xmm3; \ | |
| 36 | movaps 0x20(%rsp), %xmm4; \ | |
| 37 | movaps 0x10(%rsp), %xmm5; \ | |
| 38 | mov 0x8(%rsp), %rsi; \ | |
| 39 | mov %rsi, %cr0; \ | |
| 40 | mov (%rsp), %rsp | |
| 41 | ||
| 62fa6e69 | 42 | ENTRY(efi_call) |
| 683ad809 LT |
43 | pushq %rbp |
| 44 | movq %rsp, %rbp | |
| 5b83683f | 45 | SAVE_XMM |
| 683ad809 | 46 | mov 16(%rbp), %rax |
| 5b83683f HY |
47 | subq $48, %rsp |
| 48 | mov %r9, 32(%rsp) | |
| 49 | mov %rax, 40(%rsp) | |
| 50 | mov %r8, %r9 | |
| 51 | mov %rcx, %r8 | |
| 52 | mov %rsi, %rcx | |
| 53 | call *%rdi | |
| 54 | addq $48, %rsp | |
| 55 | RESTORE_XMM | |
| 683ad809 | 56 | popq %rbp |
| 5b83683f | 57 | ret |
| 62fa6e69 | 58 | ENDPROC(efi_call) |