1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * Copyright (c) 2003 Peter Wemm. 4 * Copyright (c) 2008 The DragonFly Project. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * from: @(#)pcb.h 5.10 (Berkeley) 5/12/91 39 * $FreeBSD: src/sys/amd64/include/pcb.h,v 1.57 2004/01/28 23:54:31 peter Exp $ 40 * $DragonFly: src/sys/platform/pc64/include/pcb.h,v 1.3 2008/08/29 17:07:17 dillon Exp $ 41 */ 42 43 #ifndef _MACHINE_PCB_H_ 44 #define _MACHINE_PCB_H_ 45 46 /* 47 * AMD64 process control block 48 */ 49 #include <machine/npx.h> 50 51 struct pcb { 52 register_t padxx[8]; 53 register_t pcb_cr3; 54 register_t pcb_r15; 55 register_t pcb_r14; 56 register_t pcb_r13; 57 register_t pcb_r12; 58 register_t pcb_rbp; 59 register_t pcb_rsp; 60 register_t pcb_rbx; 61 register_t pcb_rip; 62 register_t pcb_rsi; 63 register_t pcb_rdi; 64 register_t pcb_rflags; 65 register_t pcb_fsbase; 66 register_t pcb_gsbase; 67 u_long pcb_flags; 68 u_int32_t pcb_ds; 69 u_int32_t pcb_es; 70 u_int32_t pcb_fs; 71 u_int32_t pcb_gs; 72 u_int64_t pcb_dr0; 73 u_int64_t pcb_dr1; 74 u_int64_t pcb_dr2; 75 u_int64_t pcb_dr3; 76 u_int64_t pcb_dr6; 77 u_int64_t pcb_dr7; 78 79 struct pcb_ldt *pcb_ldt; 80 union savefpu pcb_save; 81 #define PCB_DBREGS 0x02 /* process using debug registers */ 82 #define PCB_FPUINITDONE 0x08 /* fpu state is initialized */ 83 #define PCB_FULLCTX 0x80 /* full context restore on sysret */ 84 #define FP_VIRTFP 0x04 /* virtual kernel wants exception */ 85 caddr_t pcb_onfault; /* copyin/out fault recovery */ 86 int pcb_unused; 87 struct pcb_ext *pcb_ext; /* optional pcb extension */ 88 }; 89 90 #ifdef _KERNEL 91 void savectx(struct pcb *); 92 #endif 93 94 #endif /* _MACHINE_PCB_H_ */ 95