1 /*- 2 * Copyright (c) 1997 Jonathan Lemon 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/i386/include/pcb_ext.h,v 1.4 1999/12/29 04:33:04 peter Exp $ 27 * $DragonFly: src/sys/platform/pc64/include/pcb_ext.h,v 1.1 2007/09/23 04:42:07 yanyh Exp $ 28 * $DragonFly: src/sys/platform/pc64/include/pcb_ext.h,v 1.1 2007/09/23 04:42:07 yanyh Exp $ 29 */ 30 31 #ifndef _MACHINE_PCB_EXT_H_ 32 #define _MACHINE_PCB_EXT_H_ 33 34 #ifndef _SYS_TYPES_H_ 35 #include <sys/types.h> 36 #endif 37 38 /* 39 * Extension to the 386 process control block 40 */ 41 #ifndef _MACHINE_TSS_H_ 42 #include <machine/tss.h> 43 #endif 44 #ifndef _MACHINE_SEGMENTS_H_ 45 #include <machine/segments.h> 46 #endif 47 48 struct pcb_ext { 49 struct segment_descriptor ext_tssd; /* tss descriptor */ 50 struct amd64tss ext_tss; /* per-process amd64tss */ 51 caddr_t ext_iomap; /* i/o permission bitmap */ 52 /* struct vm86_kernel ext_vm86; */ /* vm86 area */ 53 }; 54 55 struct pcb_ldt { 56 caddr_t ldt_base; 57 int ldt_len; 58 int ldt_refcnt; 59 u_long ldt_active; 60 struct segment_descriptor ldt_sd; 61 }; 62 63 #ifdef _KERNEL 64 65 struct pcb; 66 67 void set_user_ldt (struct pcb *); 68 struct pcb_ldt *user_ldt_alloc (struct pcb *, int); 69 void user_ldt_free (struct pcb *); 70 71 #endif 72 73 #endif /* _MACHINE_PCB_EXT_H_ */ 74