2 * Copyright (c) 1995 Bruce D. Evans.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #ifndef _MACHINE_MD_VAR_H_
33 #define _MACHINE_MD_VAR_H_
35 #include <x86/x86_var.h>
37 extern uint64_t *vm_page_dump;
38 extern int hw_ibrs_disable;
41 * The file "conf/ldscript.amd64" defines the symbol "kernphys". Its
42 * value is the physical address at which the kernel is loaded.
44 extern char kernphys[];
48 void amd64_conf_fast_syscall(void);
49 void amd64_db_resume_dbreg(void);
50 void amd64_syscall(struct thread *td, int traced);
51 void doreti_iret(void) __asm(__STRING(doreti_iret));
52 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
53 void ld_ds(void) __asm(__STRING(ld_ds));
54 void ld_es(void) __asm(__STRING(ld_es));
55 void ld_fs(void) __asm(__STRING(ld_fs));
56 void ld_gs(void) __asm(__STRING(ld_gs));
57 void ld_fsbase(void) __asm(__STRING(ld_fsbase));
58 void ld_gsbase(void) __asm(__STRING(ld_gsbase));
59 void ds_load_fault(void) __asm(__STRING(ds_load_fault));
60 void es_load_fault(void) __asm(__STRING(es_load_fault));
61 void fs_load_fault(void) __asm(__STRING(fs_load_fault));
62 void gs_load_fault(void) __asm(__STRING(gs_load_fault));
63 void fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault));
64 void gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault));
65 void fpstate_drop(struct thread *td);
66 void pagezero(void *addr);
67 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist);
68 struct savefpu *get_pcb_user_save_td(struct thread *td);
69 struct savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
71 #endif /* !_MACHINE_MD_VAR_H_ */