pcb.h revision 210777
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 210777 2010-08-02 17:35:00Z 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_r15; 48114349Speter register_t pcb_r14; 49114349Speter register_t pcb_r13; 50114349Speter register_t pcb_r12; 51114349Speter register_t pcb_rbp; 52114349Speter register_t pcb_rsp; 53114349Speter register_t pcb_rbx; 54114349Speter register_t pcb_rip; 55114928Speter register_t pcb_fsbase; 56114928Speter register_t pcb_gsbase; 57210777Sjkim register_t pcb_kgsbase; 58177532Speter u_long pcb_flags; 59189411Sjhb#define PCB_DBREGS 0x02 /* process using debug registers */ 60208833Skib#define PCB_KERNFPU 0x04 /* kernel uses fpu */ 61189411Sjhb#define PCB_FPUINITDONE 0x08 /* fpu state is initialized */ 62208833Skib#define PCB_USERFPUINITDONE 0x10 /* fpu user state is initialized */ 63189411Sjhb#define PCB_GS32BIT 0x20 /* linux gs switch */ 64189411Sjhb#define PCB_32BIT 0x40 /* process has 32 bit context (segs etc) */ 65189411Sjhb#define PCB_FULLCTX 0x80 /* full context restore on sysret */ 66189411Sjhb 67210777Sjkim register_t pcb_cr0; 68210777Sjkim register_t pcb_cr2; 69210777Sjkim register_t pcb_cr3; 70210777Sjkim register_t pcb_cr4; 71210777Sjkim register_t pcb_dr0; 72210777Sjkim register_t pcb_dr1; 73210777Sjkim register_t pcb_dr2; 74210777Sjkim register_t pcb_dr3; 75210777Sjkim register_t pcb_dr6; 76210777Sjkim register_t pcb_dr7; 7748691Sjlemon 78189423Sjhb uint16_t pcb_initial_fpucw; 7948691Sjlemon 80195486Skib caddr_t pcb_onfault; /* copyin/out fault recovery */ 81168035Sjkim 82168035Sjkim /* 32-bit segment descriptor */ 83210777Sjkim struct user_segment_descriptor pcb_gs32sd; 84190620Skib /* local tss, with i/o bitmap; NULL for common */ 85190620Skib struct amd64tss *pcb_tssp; 86208833Skib struct savefpu *pcb_save; 87195486Skib char pcb_full_iret; 884Srgrimes 89210777Sjkim struct region_descriptor pcb_gdt; 90210777Sjkim struct region_descriptor pcb_idt; 91210777Sjkim struct region_descriptor pcb_ldt; 92210777Sjkim uint16_t pcb_tr; 93210777Sjkim 94210777Sjkim struct savefpu pcb_user_save; 95189903Sjkim}; 96189903Sjkim 9755205Speter#ifdef _KERNEL 98131905Smarcelstruct trapframe; 99131905Smarcel 100131905Smarcelvoid makectx(struct trapframe *, struct pcb *); 101210777Sjkimint savectx(struct pcb *); 1024Srgrimes#endif 103557Srgrimes 104122296Speter#endif /* _AMD64_PCB_H_ */ 105