1 /*- 2 * Copyright (c) 2003 Peter Wemm. 3 * Copyright (c) 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * William Jolitz. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * from: @(#)pcb.h 5.10 (Berkeley) 5/12/91 38 * $FreeBSD: src/sys/amd64/include/pcb.h,v 1.57 2004/01/28 23:54:31 peter Exp $ 39 * $DragonFly: src/sys/platform/pc64/include/pcb.h,v 1.2 2007/09/23 04:29:31 yanyh Exp $ 40 */ 41 42 #ifndef _MACHINE_PCB_H_ 43 #define _MACHINE_PCB_H_ 44 45 /* 46 * AMD64 process control block 47 */ 48 #include <machine/npx.h> 49 50 struct pcb { 51 register_t padxx[8]; 52 register_t pcb_cr3; 53 register_t pcb_r15; 54 register_t pcb_r14; 55 register_t pcb_r13; 56 register_t pcb_r12; 57 register_t pcb_rbp; 58 register_t pcb_rsp; 59 register_t pcb_rbx; 60 register_t pcb_rip; 61 register_t pcb_rsi; 62 register_t pcb_rdi; 63 register_t pcb_rflags; 64 register_t pcb_fsbase; 65 register_t pcb_gsbase; 66 u_int32_t pcb_ds; 67 u_int32_t pcb_es; 68 u_int32_t pcb_fs; 69 u_int32_t pcb_gs; 70 u_int64_t pcb_dr0; 71 u_int64_t pcb_dr1; 72 u_int64_t pcb_dr2; 73 u_int64_t pcb_dr3; 74 u_int64_t pcb_dr6; 75 u_int64_t pcb_dr7; 76 77 struct pcb_ldt *pcb_ldt; 78 union savefpu pcb_save; 79 u_long pcb_flags; 80 #define PCB_DBREGS 0x02 /* process using debug registers */ 81 #define PCB_FPUINITDONE 0x08 /* fpu state is initialized */ 82 #define PCB_FULLCTX 0x80 /* full context restore on sysret */ 83 #define FP_VIRTFP 0x04 /* virtual kernel wants exception */ 84 caddr_t pcb_onfault; /* copyin/out fault recovery */ 85 int pcb_unused; 86 struct pcb_ext *pcb_ext; /* optional pcb extension */ 87 }; 88 89 #ifdef _KERNEL 90 void savectx(struct pcb *); 91 #endif 92 93 #endif /* _MACHINE_PCB_H_ */ 94