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