1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26/* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 27/* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */ 28/* All Rights Reserved */ 29 30#ifndef _SYS_SYSI86_H 31#define _SYS_SYSI86_H 32 33#pragma ident "%Z%%M% %I% %E% SMI" 34 35#ifdef __cplusplus 36extern "C" { 37#endif 38 39#ifndef DIRSIZ 40#define DIRSIZ 14 41#endif 42 43/* 44 * Commands for sysi86 system call (1-?) 45 */ 46 47#define SI86SWPI 1 /* General swap interface. */ 48#define SI86SYM 2 /* acquire boot-built symbol table */ 49#define SI86CONF 4 /* acquire boot-built configuration table */ 50#define SI86BOOT 5 /* acquire timestamp and name of program */ 51 /* booted */ 52#define SI86AUTO 9 /* was an auto-config boot done? */ 53#define SI86EDT 10 /* copy contents of EDT to user */ 54#define SI86SWAP 12 /* Declare swap space */ 55#define SI86FPHW 40 /* what (if any?) floating-point hardware */ 56#define SI86FPSTART 41 /* extended version of SI86FPHW */ 57 58#define GRNON 52 /* set green light to solid on state */ 59#define GRNFLASH 53 /* start green light flashing */ 60#define STIME 54 /* set internal time */ 61#define SETNAME 56 /* rename the system */ 62#define RNVR 58 /* read NVRAM */ 63#define WNVR 59 /* write NVRAM */ 64#define RTODC 60 /* read time of day clock */ 65#define CHKSER 61 /* check soft serial number */ 66#define SI86NVPRT 62 /* print an xtra_nvr structure */ 67#define SANUPD 63 /* sanity update of kernel buffers */ 68#define SI86KSTR 64 /* make a copy of a kernel string */ 69#define SI86MEM 65 /* return the memory size of system */ 70#define SI86TODEMON 66 /* Transfer control to firmware. */ 71#define SI86CCDEMON 67 /* Control character access to demon. */ 72#define SI86CACHE 68 /* Turn cache on and off. */ 73#define SI86DELMEM 69 /* Delete available memory for testing. */ 74#define SI86ADDMEM 70 /* Add back deleted memory. */ 75/* 71 through 74 reserved for VPIX */ 76#define SI86V86 71 /* V86 system calls (see below) */ 77#define SI86SLTIME 72 /* Set local time correction */ 78#define SI86DSCR 75 /* Set a segment or gate descriptor */ 79#define RDUBLK 76 /* Read U Block */ 80/* NFA entry point */ 81#define SI86NFA 77 /* make nfa_sys system call */ 82#define SI86VM86 81 83#define SI86VMENABLE 82 84#define SI86LIMUSER 91 /* license interface */ 85#define SI86RDID 92 /* ROM BIOS Machid ID */ 86#define SI86RDBOOT 93 /* Bootable Non-SCSI Hard Disk */ 87/* XENIX Support */ 88#define SI86SHFIL 100 /* map a file into addr space of a proc */ 89#define SI86PCHRGN 101 /* make globally visible change to a region */ 90#define SI86BADVISE 102 /* badvise subcommand - see below for */ 91 /* badvise subfunction definitions */ 92#define SI86SHRGN 103 /* enable/disable XENIX small model shared */ 93 /* data context switching */ 94#define SI86CHIDT 104 /* set user level int 0xf0, ... 0xff handlers */ 95#define SI86EMULRDA 105 /* remove special emulator read access */ 96 97/* 98 * NOTE: Numbers 106 - 110 have been registered and are reserved 99 * for future use for AT&T hardware. 100 */ 101 102/* 103 * Commands for allowing the real time clock to keep local time. 104 */ 105 106#define WTODC 111 /* write tod clock */ 107#define SGMTL 112 /* set GMT lag */ 108#define GGMTL 113 /* get GMT lag */ 109#define RTCSYNC 114 /* set UNIX 'time' based on RTC and GMT lag */ 110 111#define V86SC_IOPL 4 /* The only supported V86 system call */ 112 113/* 114 * The SI86DSCR subcommand of the sysi86() system call 115 * sets a segment or gate descriptor in the kernel. 116 * The following descriptor types are accepted: 117 * - executable and data segments in the LDT at DPL 3 118 * - a call gate in the GDT at DPL 3 that points to a segment in the LDT 119 * The request structure declared below is used to pass the values 120 * to be placed in the descriptor. A pointer to the structure is 121 * passed as the second argument of the system call. 122 * If acc1 is zero, the descriptor is cleared. 123 */ 124 125/* 126 * XX64 Do we need to support this for 64-bit apps? 127 * 128 * request structure passed by user 129 */ 130struct ssd { 131 unsigned int sel; /* descriptor selector */ 132 unsigned int bo; /* segment base or gate offset */ 133 unsigned int ls; /* segment limit or gate selector */ 134 unsigned int acc1; /* access byte 5 */ 135 unsigned int acc2; /* access bits in byte 6 or gate count */ 136}; 137 138#define SI86SSD_TYPE(ssd) ((ssd)->acc1 & 0x1F) 139#define SI86SSD_DPL(ssd) (((ssd)->acc1 >> 5) & 0x3) 140#define SI86SSD_PRES(ssd) (((ssd)->acc1 >> 7) & 1) 141#define SI86SSD_ISUSEG(ssd) (SI86SSD_TYPE(ssd) >= SDT_MEMRO) 142#define SI86SSD_ISLONG(ssd) ((ssd)->acc2 & 0x2) 143 144#ifdef _KERNEL 145extern void usd_to_ssd(user_desc_t *, struct ssd *, selector_t); 146extern int setdscr(struct ssd *); 147#endif /* _KERNEL */ 148 149/* 150 * The SI86SHFIL subcommand of the sysi86() system call 151 * maps a file into a region in user address space. 152 * The request structure declared below is used to pass the 153 * system call parameters. A pointer to the structure is 154 * passed as the second argument of the system call. 155 */ 156struct mmf { 157 char *mf_filename; /* path name of file */ 158 long mf_filesz; /* Size in bytes of section of file */ 159 /* from which this region is mapped. */ 160 long mf_regsz; /* Size of region in bytes */ 161 short mf_flags; /* Either 0 or RG_NOSHARE */ 162}; 163 164/* 165 * The SI86PCHRGN subcommand of the sysi86() system call 166 * change the memory mapped image of a file. 167 * The request structure declared below is used to pass the values 168 * system call parameters. A pointer to the structure is 169 * passed as the second argument of the system call. 170 */ 171struct cmf { 172 char *cf_srcva; /* modified image address */ 173 char *cf_dstva; /* location to patch */ 174 long cf_count; /* size of patch */ 175}; 176 177/* 178 * The SI86BADVISE subcommand of the sysi86() system call specifies 179 * XENIX variant behavior for certain system calls and kernel routines. 180 * The 'arg' argument of sysi86() for SI86BADVISE is an integer. Bits 181 * 8..15 specify SI86B_SET or SI86B_GET. Bits 0..7 contain 182 * SI86B_PRE_SV, SI86B_XOUT, or SI86B_XSDSWTCH. All these constants are 183 * defined below. The 'arg' argument thus consists of either SI86B_SET 184 * OR'ed with zero or more of SI86B_PRE_SV, SI86B_XOUT, and SI86B_XSDSWTCH, 185 * or of SI86B_GET. 186 */ 187#define SI86B_SET 0x0100 /* set badvise bits */ 188#define SI86B_GET 0x0200 /* retrieve badvise bits */ 189 190#define SI86B_PRE_SV 0x0008 /* follow pre-System V x.out behavior */ 191#define SI86B_XOUT 0x0010 /* follow XENIX x.out behavior */ 192#define SI86B_XSDSWTCH 0x0080 /* XENIX small model shared data */ 193 /* context switching enabled */ 194 195/* 196 * The request structure declared below is used by the XENIX 286 emulator 197 * (/bin/x286emul) in conjunction with the SI86SHRGN subcommand of sysi86(). 198 * The SI86SHRGN subcommand is used by the XENIX 286 emulator to support 199 * XENIX shared data. The second argument passed to sysi86() is a 200 * pointer to an xsdbuf struct. 201 * 202 * If the 'xsd_cmd' field of xsdbuf is SI86SHR_CP, the XENIX 286 emulator is 203 * using the SI86SHRGN subcommand to set up XENIX small model shared data 204 * context switching support for a given XENIX shared data segment. In this 205 * case, the xsdbuf struct contains the start addr for the shared data in 206 * 386 space, followed by the start addr for the shared data in the 286 207 * executable's private data. 208 * 209 * If the 'xsd_cmd' field is SI86SHR_SZ, the XENIX 286 emulator is using the 210 * SI86SHRGN subcommand to retrieve the size of an existing XENIX shared 211 * data segment. In this case, the xsdbuf struct contains the start addr 212 * for the shared data in 386 space. 213 * The size of the shared data segment starting at 'xsd_386vaddr' will 214 * be returned in the 'xsd_size' field by sysi86(). 215 */ 216 217#define SI86SHR_CP 0x1 /* SI86SHRGN used for XENIX sd context switch */ 218#define SI86SHR_SZ 0x2 /* SI86SHRGN used to get XENIX sd seg size */ 219 220struct xsdbuf { 221 unsigned xsd_cmd; /* SI86SHRGN subcommand, either SI86SHR_CP */ 222 /* or SI86SHR_SZ. */ 223 char *xsd_386vaddr; /* Addr of "real" XENIX shared data seg in */ 224 /* the emulator. */ 225 union { 226 char *xsd_286vaddr; /* Addr of XENIX shared data seg */ 227 /* in the 286 data portion of the */ 228 /* emulator. */ 229 unsigned long xsd_size; /* Size of XENIX shared data seg */ 230 } xsd_un; 231}; 232/* End XENIX Support */ 233 234/* 235 * Cascade defines 236 */ 237 238#define C2 'E' 239#define C3 'F' 240#define C4 'G' 241#define C6 'K' 242 243/* Enterprise IDNO defines */ 244#define E8R1 'R' 245 246#ifndef _KERNEL 247#ifdef __STDC__ 248extern int sysi86(int, ...); 249#else 250extern int sysi86(); 251#endif /* __STDC__ */ 252#endif /* !_KERNEL */ 253 254#ifdef __cplusplus 255} 256#endif 257 258#endif /* _SYS_SYSI86_H */ 259