pcb.h revision 189903
14Srgrimes/*- 2122296Speter * Copyright (c) 2003 Peter Wemm. 34Srgrimes * Copyright (c) 1990 The Regents of the University of California. 44Srgrimes * All rights reserved. 54Srgrimes * 64Srgrimes * This code is derived from software contributed to Berkeley by 74Srgrimes * William Jolitz. 84Srgrimes * 94Srgrimes * Redistribution and use in source and binary forms, with or without 104Srgrimes * modification, are permitted provided that the following conditions 114Srgrimes * are met: 124Srgrimes * 1. Redistributions of source code must retain the above copyright 134Srgrimes * notice, this list of conditions and the following disclaimer. 144Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 154Srgrimes * notice, this list of conditions and the following disclaimer in the 164Srgrimes * documentation and/or other materials provided with the distribution. 174Srgrimes * 4. Neither the name of the University nor the names of its contributors 184Srgrimes * may be used to endorse or promote products derived from this software 194Srgrimes * without specific prior written permission. 204Srgrimes * 214Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 224Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 234Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 244Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 254Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 264Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 274Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 284Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 294Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 304Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 314Srgrimes * SUCH DAMAGE. 324Srgrimes * 33557Srgrimes * from: @(#)pcb.h 5.10 (Berkeley) 5/12/91 3450477Speter * $FreeBSD: head/sys/amd64/include/pcb.h 189903 2009-03-17 00:48:11Z jkim $ 354Srgrimes */ 364Srgrimes 37122296Speter#ifndef _AMD64_PCB_H_ 38122296Speter#define _AMD64_PCB_H_ 39557Srgrimes 404Srgrimes/* 41122278Speter * AMD64 process control block 424Srgrimes */ 43122278Speter#include <machine/fpu.h> 44168035Sjkim#include <machine/segments.h> 454Srgrimes 464Srgrimesstruct pcb { 47114349Speter register_t pcb_cr3; 48114349Speter register_t pcb_r15; 49114349Speter register_t pcb_r14; 50114349Speter register_t pcb_r13; 51114349Speter register_t pcb_r12; 52114349Speter register_t pcb_rbp; 53114349Speter register_t pcb_rsp; 54114349Speter register_t pcb_rbx; 55114349Speter register_t pcb_rip; 56114928Speter register_t pcb_fsbase; 57114928Speter register_t pcb_gsbase; 58177532Speter u_long pcb_flags; 59189411Sjhb#define PCB_DBREGS 0x02 /* process using debug registers */ 60189411Sjhb#define PCB_FPUINITDONE 0x08 /* fpu state is initialized */ 61189411Sjhb#define PCB_GS32BIT 0x20 /* linux gs switch */ 62189411Sjhb#define PCB_32BIT 0x40 /* process has 32 bit context (segs etc) */ 63189411Sjhb#define PCB_FULLCTX 0x80 /* full context restore on sysret */ 64189411Sjhb 65114987Speter u_int32_t pcb_ds; 66114987Speter u_int32_t pcb_es; 67114987Speter u_int32_t pcb_fs; 68114987Speter u_int32_t pcb_gs; 69125176Speter u_int64_t pcb_dr0; 70125176Speter u_int64_t pcb_dr1; 71125176Speter u_int64_t pcb_dr2; 72125176Speter u_int64_t pcb_dr3; 73125176Speter u_int64_t pcb_dr6; 74125176Speter u_int64_t pcb_dr7; 7548691Sjlemon 76114349Speter struct savefpu pcb_save; 77189423Sjhb uint16_t pcb_initial_fpucw; 7848691Sjlemon 794Srgrimes caddr_t pcb_onfault; /* copyin/out fault recovery */ 80168035Sjkim 81168035Sjkim /* 32-bit segment descriptor */ 82168035Sjkim struct user_segment_descriptor pcb_gs32sd; 834Srgrimes}; 844Srgrimes 85189903Sjkimstruct xpcb { 86189903Sjkim struct pcb xpcb_pcb; 87189903Sjkim register_t xpcb_cr0; 88189903Sjkim register_t xpcb_cr2; 89189903Sjkim register_t xpcb_cr4; 90189903Sjkim register_t xpcb_kgsbase; 91189903Sjkim uint32_t xpcb_ss; 92189903Sjkim struct region_descriptor xpcb_gdt; 93189903Sjkim struct region_descriptor xpcb_idt; 94189903Sjkim struct region_descriptor xpcb_ldt; 95189903Sjkim uint16_t xpcb_tr; 96189903Sjkim}; 97189903Sjkim 9855205Speter#ifdef _KERNEL 99131905Smarcelstruct trapframe; 100131905Smarcel 101131905Smarcelvoid makectx(struct trapframe *, struct pcb *); 10292761Salfredvoid savectx(struct pcb *); 103189903Sjkimint savectx2(struct xpcb *); 1044Srgrimes#endif 105557Srgrimes 106122296Speter#endif /* _AMD64_PCB_H_ */ 107