1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1995 Bruce D. Evans.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the author nor the names of contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
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
29 * SUCH DAMAGE.
30 */
31
32#ifdef __i386__
33#include <i386/md_var.h>
34#else /* !__i386__ */
35
36#ifndef _MACHINE_MD_VAR_H_
37#define _MACHINE_MD_VAR_H_
38
39#include <x86/x86_var.h>
40
41extern char ctx_switch_xsave[];
42extern char ctx_switch_xsave32[];
43extern int hw_lower_amd64_sharedpage;
44extern int hw_ibrs_disable;
45extern int hw_ssb_disable;
46extern int nmi_flush_l1d_sw;
47extern int syscall_ret_l1d_flush_mode;
48
49extern vm_paddr_t intel_graphics_stolen_base;
50extern vm_paddr_t intel_graphics_stolen_size;
51
52extern int la57;
53extern int prefer_uva_la48;
54
55extern vm_paddr_t kernphys;
56extern vm_paddr_t KERNend;
57
58extern bool efi_boot;
59
60struct __mcontext;
61struct savefpu;
62struct sysentvec;
63
64void amd64_conf_fast_syscall(void);
65void amd64_db_resume_dbreg(void);
66vm_paddr_t amd64_loadaddr(void);
67void amd64_lower_shared_page(struct sysentvec *);
68void amd64_bsp_pcpu_init1(struct pcpu *pc);
69void amd64_bsp_pcpu_init2(uint64_t rsp0);
70void amd64_bsp_ist_init(struct pcpu *pc);
71void amd64_syscall(struct thread *td, int traced);
72void amd64_syscall_ret_flush_l1d(int error);
73void amd64_syscall_ret_flush_l1d_recalc(void);
74void cpu_init_small_core(void);
75void doreti_iret(void) __asm(__STRING(doreti_iret));
76void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
77void flush_l1d_sw_abi(void);
78void ld_ds(void) __asm(__STRING(ld_ds));
79void ld_es(void) __asm(__STRING(ld_es));
80void ld_fs(void) __asm(__STRING(ld_fs));
81void ld_gs(void) __asm(__STRING(ld_gs));
82void ld_fsbase(void) __asm(__STRING(ld_fsbase));
83void ld_gsbase(void) __asm(__STRING(ld_gsbase));
84void ds_load_fault(void) __asm(__STRING(ds_load_fault));
85void es_load_fault(void) __asm(__STRING(es_load_fault));
86void fs_load_fault(void) __asm(__STRING(fs_load_fault));
87void gs_load_fault(void) __asm(__STRING(gs_load_fault));
88void fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault));
89void gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault));
90void fpstate_drop(struct thread *td);
91void pagezero(void *addr);
92void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist);
93void set_top_of_stack_td(struct thread *td);
94struct savefpu *get_pcb_user_save_td(struct thread *td);
95struct savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
96void pci_early_quirks(void);
97void get_fpcontext(struct thread *td, struct __mcontext *mcp,
98 char **xfpusave, size_t *xfpusave_len);
99int set_fpcontext(struct thread *td, struct __mcontext *mcp,
100 char *xfpustate, size_t xfpustate_len);
101
102void wrmsr_early_safe_start(void);
103void wrmsr_early_safe_end(void);
104int wrmsr_early_safe(u_int msr, uint64_t data);
105
106#endif /* !_MACHINE_MD_VAR_H_ */
107
108#endif /* __i386__ */