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: stable/11/sys/amd64/include/md_var.h 366619 2020-10-10 18:22:12Z kib $ 30 */ 31 32#ifndef _MACHINE_MD_VAR_H_ 33#define _MACHINE_MD_VAR_H_ 34 35#include <x86/x86_var.h> 36 37extern uint64_t *vm_page_dump; 38extern char ctx_switch_xsave[]; 39extern int hw_lower_amd64_sharedpage; 40extern int hw_ibrs_disable; 41extern int hw_ssb_disable; 42extern int nmi_flush_l1d_sw; 43 44/* 45 * The file "conf/ldscript.amd64" defines the symbol "kernphys". Its 46 * value is the physical address at which the kernel is loaded. 47 */ 48extern char kernphys[]; 49 50struct savefpu; 51struct sysentvec; 52 53void amd64_conf_fast_syscall(void); 54void amd64_db_resume_dbreg(void); 55void amd64_lower_shared_page(struct sysentvec *); 56void amd64_syscall(struct thread *td, int traced); 57void doreti_iret(void) __asm(__STRING(doreti_iret)); 58void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 59void ld_ds(void) __asm(__STRING(ld_ds)); 60void ld_es(void) __asm(__STRING(ld_es)); 61void ld_fs(void) __asm(__STRING(ld_fs)); 62void ld_gs(void) __asm(__STRING(ld_gs)); 63void ld_fsbase(void) __asm(__STRING(ld_fsbase)); 64void ld_gsbase(void) __asm(__STRING(ld_gsbase)); 65void ds_load_fault(void) __asm(__STRING(ds_load_fault)); 66void es_load_fault(void) __asm(__STRING(es_load_fault)); 67void fs_load_fault(void) __asm(__STRING(fs_load_fault)); 68void gs_load_fault(void) __asm(__STRING(gs_load_fault)); 69void fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault)); 70void gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault)); 71void fpstate_drop(struct thread *td); 72void pagezero(void *addr); 73void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist); 74struct savefpu *get_pcb_user_save_td(struct thread *td); 75struct savefpu *get_pcb_user_save_pcb(struct pcb *pcb); 76 77#endif /* !_MACHINE_MD_VAR_H_ */ 78