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 * $FreeBSD$ 32 */ 33 34 #ifndef _MACHINE_MD_VAR_H_ 35 #define _MACHINE_MD_VAR_H_ 36 37 #include <x86/x86_var.h> 38 39 extern uint64_t *vm_page_dump; 40 extern int hw_lower_amd64_sharedpage; 41 extern int hw_ibrs_disable; 42 extern int hw_ssb_disable; 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 */ 48 extern char kernphys[]; 49 50 struct savefpu; 51 struct sysentvec; 52 53 void amd64_conf_fast_syscall(void); 54 void amd64_db_resume_dbreg(void); 55 void amd64_lower_shared_page(struct sysentvec *); 56 void amd64_syscall(struct thread *td, int traced); 57 void doreti_iret(void) __asm(__STRING(doreti_iret)); 58 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 59 void ld_ds(void) __asm(__STRING(ld_ds)); 60 void ld_es(void) __asm(__STRING(ld_es)); 61 void ld_fs(void) __asm(__STRING(ld_fs)); 62 void ld_gs(void) __asm(__STRING(ld_gs)); 63 void ld_fsbase(void) __asm(__STRING(ld_fsbase)); 64 void ld_gsbase(void) __asm(__STRING(ld_gsbase)); 65 void ds_load_fault(void) __asm(__STRING(ds_load_fault)); 66 void es_load_fault(void) __asm(__STRING(es_load_fault)); 67 void fs_load_fault(void) __asm(__STRING(fs_load_fault)); 68 void gs_load_fault(void) __asm(__STRING(gs_load_fault)); 69 void fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault)); 70 void gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault)); 71 void fpstate_drop(struct thread *td); 72 void pagezero(void *addr); 73 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist); 74 void sse2_pagezero(void *addr); 75 struct savefpu *get_pcb_user_save_td(struct thread *td); 76 struct savefpu *get_pcb_user_save_pcb(struct pcb *pcb); 77 78 #endif /* !_MACHINE_MD_VAR_H_ */ 79