xref: /freebsd/sys/amd64/include/md_var.h (revision 49b49cda41feabe3439f7318e8bf40e3896c7bf4)
1 /*-
2  * Copyright (c) 1995 Bruce D. Evans.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
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.
16  *
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
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef _MACHINE_MD_VAR_H_
33 #define	_MACHINE_MD_VAR_H_
34 
35 #include <x86/x86_var.h>
36 
37 extern  uint64_t *vm_page_dump;
38 
39 /* XXX */
40 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
41 
42 struct	savefpu;
43 
44 void	amd64_db_resume_dbreg(void);
45 void	amd64_syscall(struct thread *td, int traced);
46 void	doreti_iret(void) __asm(__STRING(doreti_iret));
47 void	doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
48 void	ld_ds(void) __asm(__STRING(ld_ds));
49 void	ld_es(void) __asm(__STRING(ld_es));
50 void	ld_fs(void) __asm(__STRING(ld_fs));
51 void	ld_gs(void) __asm(__STRING(ld_gs));
52 void	ld_fsbase(void) __asm(__STRING(ld_fsbase));
53 void	ld_gsbase(void) __asm(__STRING(ld_gsbase));
54 void	ds_load_fault(void) __asm(__STRING(ds_load_fault));
55 void	es_load_fault(void) __asm(__STRING(es_load_fault));
56 void	fs_load_fault(void) __asm(__STRING(fs_load_fault));
57 void	gs_load_fault(void) __asm(__STRING(gs_load_fault));
58 void	fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault));
59 void	gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault));
60 void	fpstate_drop(struct thread *td);
61 void	pagezero(void *addr);
62 void	setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist);
63 struct savefpu *get_pcb_user_save_td(struct thread *td);
64 struct savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
65 
66 #endif /* !_MACHINE_MD_VAR_H_ */
67