2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2018 The FreeBSD Foundation
7 * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
8 * under sponsorship from the FreeBSD Foundation.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include <machine/asmacros.h>
39 ENTRY(efi_rt_arch_call)
43 movq %rbx, EC_RBX(%rdi)
44 movq %rsp, EC_RSP(%rdi)
45 movq %rbp, EC_RBP(%rdi)
46 movq %r12, EC_R12(%rdi)
47 movq %r13, EC_R13(%rdi)
48 movq %r14, EC_R14(%rdi)
49 movq %r15, EC_R15(%rdi)
52 movq %rax, EC_RFLAGS(%rdi)
53 movq PCPU(CURTHREAD), %rax
54 movq %rdi, TD_MD+MD_EFIRT_TMP(%rax)
55 movq PCPU(CURPCB), %rsi
57 movl EC_ARGCNT(%rdi), %ecx
67 movq EC_ARG1(%rdi), %rcx
70 movq EC_ARG2(%rdi), %rdx
73 movq EC_ARG3(%rdi), %r8
76 movq EC_ARG4(%rdi), %r9
79 movq EC_ARG5(%rdi), %rax
83 movq $efi_rt_panic_str, %rdi
85 1: movq EC_FPTR(%rdi), %rax
86 movq $efi_rt_fault, PCB_ONFAULT(%rsi)
89 movq PCPU(CURTHREAD), %rbx
90 movq TD_MD+MD_EFIRT_TMP(%rbx), %rdi
91 movq %rax, EC_EFI_STATUS(%rdi)
92 movq PCPU(CURPCB), %rsi
94 movq %rax, PCB_ONFAULT(%rsi)
96 efi_rt_arch_call_tail:
97 movq EC_R15(%rdi), %r15
98 movq EC_R14(%rdi), %r14
99 movq EC_R13(%rdi), %r13
100 movq EC_R12(%rdi), %r12
101 movq EC_RBP(%rdi), %rbp
102 movq EC_RSP(%rdi), %rsp
103 movq EC_RBX(%rdi), %rbx
104 pushq EC_RFLAGS(%rdi)
109 END(efi_rt_arch_call)
113 movq PCPU(CURPCB), %rsi
114 movq %rax, PCB_ONFAULT(%rsi)
116 movq PCPU(CURTHREAD), %rbx
117 movq TD_MD+MD_EFIRT_TMP(%rbx), %rdi
118 jmp efi_rt_arch_call_tail
121 efi_rt_panic_str: .asciz "efi_rt_arch_call: too many args"