sys/platform/vkernel64/include/pcb.h

   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. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      from: @(#)pcb.h 5.10 (Berkeley) 5/12/91
  35  * $FreeBSD: src/sys/i386/include/pcb.h,v 1.32.2.1 2001/08/15 01:23:52 peter Exp $
  36  */
  37
  38 #ifndef _MACHINE_PCB_H_
  39 #define _MACHINE_PCB_H_
  40
  41 /*
  42  * x86_64 process control block
  43  */
  44 #include <machine/npx.h>
  45
  46 struct pcb {
  47         register_t      padxx[8];
  48         register_t      pcb_unused01;
  49         register_t      pcb_r15;
  50         register_t      pcb_r14;
  51         register_t      pcb_r13;
  52         register_t      pcb_r12;
  53         register_t      pcb_rbp;
  54         register_t      pcb_rsp;
  55         register_t      pcb_rbx;
  56         register_t      pcb_rip;
  57         register_t      pcb_rsi;
  58         register_t      pcb_rdi;
  59         register_t      pcb_rflags;
  60         register_t      pcb_fsbase;
  61         register_t      pcb_gsbase;
  62         u_long          pcb_flags;
  63         u_int32_t       pcb_ds;
  64         u_int32_t       pcb_es;
  65         u_int32_t       pcb_fs;
  66         u_int32_t       pcb_gs;
  67         u_int64_t       pcb_dr0;
  68         u_int64_t       pcb_dr1;
  69         u_int64_t       pcb_dr2;
  70         u_int64_t       pcb_dr3;
  71         u_int64_t       pcb_dr6;
  72         u_int64_t       pcb_dr7;
  73
  74         struct pcb_ldt *pcb_ldt;
  75         union savefpu   pcb_save;
  76 #define PCB_DBREGS      0x02    /* process using debug registers */
  77 #define PCB_FPUINITDONE 0x08    /* fpu state is initialized */
  78 #define FP_SOFTFP       0x01    /* process using software fltng pnt emulator */
  79 #define FP_VIRTFP       0x04    /* virtual kernel wants exception */
  80         caddr_t pcb_onfault;    /* copyin/out fault recovery */
  81         int     pcb_unused;
  82         struct  pcb_ext *pcb_ext;       /* optional pcb extension */
  83 };
  84
  85 #ifdef _KERNEL
  86 void    savectx(struct pcb *);
  87 #endif
  88
  89 #endif /* _MACHINE_PCB_H_ */