1 /*- 2 * Copyright (c) 1997 Jonathan Lemon 3 * Copyright (c) 2008 The DragonFly Project. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/i386/include/pcb_ext.h,v 1.4 1999/12/29 04:33:04 peter Exp $ 28 */ 29 30 #ifndef _MACHINE_PCB_EXT_H_ 31 #define _MACHINE_PCB_EXT_H_ 32 33 #ifndef _SYS_TYPES_H_ 34 #include <sys/types.h> 35 #endif 36 37 /* 38 * Extension to the 386 process control block 39 */ 40 #ifndef _MACHINE_TSS_H_ 41 #include <machine/tss.h> 42 #endif 43 #ifndef _MACHINE_SEGMENTS_H_ 44 #include <machine/segments.h> 45 #endif 46 47 struct pcb_ext { 48 struct user_segment_descriptor ext_tssd; /* tss descriptor */ 49 struct x86_64tss ext_tss; /* per-process x86_64tss */ 50 caddr_t ext_iomap; /* i/o permission bitmap */ 51 }; 52 53 /* JG remove this structure? */ 54 struct pcb_ldt { 55 caddr_t ldt_base; 56 int ldt_len; 57 int ldt_refcnt; 58 u_long ldt_active; 59 struct user_segment_descriptor ldt_sd; 60 }; 61 62 #ifdef _KERNEL 63 64 struct pcb; 65 66 void set_user_ldt (struct pcb *); 67 struct pcb_ldt *user_ldt_alloc (struct pcb *, int); 68 void user_ldt_free (struct pcb *); 69 70 #endif 71 72 #endif /* _MACHINE_PCB_EXT_H_ */ 73