1 /* $NetBSD: pcb.h,v 1.48 2010/04/23 16:07:33 joerg Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum, and by Andrew Doran. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1990 The Regents of the University of California. 34 * All rights reserved. 35 * 36 * This code is derived from software contributed to Berkeley by 37 * William Jolitz. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 * 63 * @(#)pcb.h 5.10 (Berkeley) 5/12/91 64 */ 65 66 /* 67 * Intel 386 process control block 68 */ 69 70 #ifndef _I386_PCB_H_ 71 #define _I386_PCB_H_ 72 73 #if defined(_KERNEL_OPT) 74 #include "opt_multiprocessor.h" 75 #endif 76 77 #include <sys/signal.h> 78 79 #include <machine/segments.h> 80 #include <machine/tss.h> 81 #include <i386/npx.h> 82 #include <i386/sysarch.h> 83 84 struct pcb { 85 int pcb_esp0; /* ring0 esp */ 86 int pcb_esp; /* kernel esp */ 87 int pcb_ebp; /* kernel ebp */ 88 int pcb_unused; /* unused */ 89 int pcb_cr0; /* saved image of CR0 */ 90 int pcb_cr2; /* page fault address (CR2) */ 91 int pcb_cr3; /* page directory pointer */ 92 int pcb_iopl; /* i/o privilege level */ 93 94 /* floating point state for FPU */ 95 union savefpu pcb_savefpu __aligned(16); 96 97 struct segment_descriptor pcb_fsd; /* %fs descriptor */ 98 struct segment_descriptor pcb_gsd; /* %gs descriptor */ 99 void * pcb_onfault; /* copyin/out fault recovery */ 100 int vm86_eflags; /* virtual eflags for vm86 mode */ 101 int vm86_flagmask; /* flag mask for vm86 mode */ 102 void *vm86_userp; /* XXX performance hack */ 103 struct cpu_info *pcb_fpcpu; /* cpu holding our fp state. */ 104 char *pcb_iomap; /* I/O permission bitmap */ 105 }; 106 107 /* 108 * The pcb is augmented with machine-dependent additional data for 109 * core dumps. For the i386, there is nothing to add. 110 */ 111 struct md_coredump { 112 long md_pad[8]; 113 }; 114 115 #endif /* _I386_PCB_H_ */ 116