/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */ /* All Rights Reserved */ #ifndef _SYS_SYSI86_H #define _SYS_SYSI86_H #ifdef __cplusplus extern "C" { #endif #ifndef DIRSIZ #define DIRSIZ 14 #endif /* * Commands for sysi86 system call (1-?) */ #define SI86SWPI 1 /* General swap interface. */ #define SI86SYM 2 /* acquire boot-built symbol table */ #define SI86CONF 4 /* acquire boot-built configuration table */ #define SI86BOOT 5 /* acquire timestamp and name of program */ /* booted */ #define SI86AUTO 9 /* was an auto-config boot done? */ #define SI86EDT 10 /* copy contents of EDT to user */ #define SI86SWAP 12 /* Declare swap space */ #define SI86FPHW 40 /* what (if any?) floating-point hardware */ #define SI86FPSTART 41 /* extended version of SI86FPHW */ #define GRNON 52 /* set green light to solid on state */ #define GRNFLASH 53 /* start green light flashing */ #define STIME 54 /* set internal time */ #define SETNAME 56 /* rename the system */ #define RNVR 58 /* read NVRAM */ #define WNVR 59 /* write NVRAM */ #define RTODC 60 /* read time of day clock */ #define CHKSER 61 /* check soft serial number */ #define SI86NVPRT 62 /* print an xtra_nvr structure */ #define SANUPD 63 /* sanity update of kernel buffers */ #define SI86KSTR 64 /* make a copy of a kernel string */ #define SI86MEM 65 /* return the memory size of system */ #define SI86TODEMON 66 /* Transfer control to firmware. */ #define SI86CCDEMON 67 /* Control character access to demon. */ #define SI86CACHE 68 /* Turn cache on and off. */ #define SI86DELMEM 69 /* Delete available memory for testing. */ #define SI86ADDMEM 70 /* Add back deleted memory. */ /* 71 through 74 reserved for VPIX */ #define SI86V86 71 /* V86 system calls (see below) */ #define SI86SLTIME 72 /* Set local time correction */ #define SI86DSCR 75 /* Set a segment or gate descriptor */ #define RDUBLK 76 /* Read U Block */ /* NFA entry point */ #define SI86NFA 77 /* make nfa_sys system call */ #define SI86VM86 81 #define SI86VMENABLE 82 #define SI86LIMUSER 91 /* license interface */ #define SI86RDID 92 /* ROM BIOS Machid ID */ #define SI86RDBOOT 93 /* Bootable Non-SCSI Hard Disk */ /* XENIX Support */ #define SI86SHFIL 100 /* map a file into addr space of a proc */ #define SI86PCHRGN 101 /* make globally visible change to a region */ #define SI86BADVISE 102 /* badvise subcommand - see below for */ /* badvise subfunction definitions */ #define SI86SHRGN 103 /* enable/disable XENIX small model shared */ /* data context switching */ #define SI86CHIDT 104 /* set user level int 0xf0, ... 0xff handlers */ #define SI86EMULRDA 105 /* remove special emulator read access */ /* * NOTE: Numbers 106 - 110 have been registered and are reserved * for future use for AT&T hardware. */ /* * Commands for allowing the real time clock to keep local time. */ #define WTODC 111 /* write tod clock */ #define SGMTL 112 /* set GMT lag */ #define GGMTL 113 /* get GMT lag */ #define RTCSYNC 114 /* set UNIX 'time' based on RTC and GMT lag */ #define V86SC_IOPL 4 /* The only supported V86 system call */ /* * The SI86DSCR subcommand of the sysi86() system call * sets a segment or gate descriptor in the kernel. * The following descriptor types are accepted: * - executable and data segments in the LDT at DPL 3 * - a call gate in the GDT at DPL 3 that points to a segment in the LDT * The request structure declared below is used to pass the values * to be placed in the descriptor. A pointer to the structure is * passed as the second argument of the system call. * If acc1 is zero, the descriptor is cleared. */ /* * XX64 Do we need to support this for 64-bit apps? * * request structure passed by user */ struct ssd { unsigned int sel; /* descriptor selector */ unsigned int bo; /* segment base or gate offset */ unsigned int ls; /* segment limit or gate selector */ unsigned int acc1; /* access byte 5 */ unsigned int acc2; /* access bits in byte 6 or gate count */ }; #define SI86SSD_TYPE(ssd) ((ssd)->acc1 & 0x1F) #define SI86SSD_DPL(ssd) (((ssd)->acc1 >> 5) & 0x3) #define SI86SSD_PRES(ssd) (((ssd)->acc1 >> 7) & 1) #define SI86SSD_ISUSEG(ssd) (SI86SSD_TYPE(ssd) >= SDT_MEMRO) #define SI86SSD_ISLONG(ssd) ((ssd)->acc2 & 0x2) #ifdef _KERNEL extern void usd_to_ssd(user_desc_t *, struct ssd *, selector_t); extern int setdscr(struct ssd *); #endif /* _KERNEL */ /* * The SI86SHFIL subcommand of the sysi86() system call * maps a file into a region in user address space. * The request structure declared below is used to pass the * system call parameters. A pointer to the structure is * passed as the second argument of the system call. */ struct mmf { char *mf_filename; /* path name of file */ long mf_filesz; /* Size in bytes of section of file */ /* from which this region is mapped. */ long mf_regsz; /* Size of region in bytes */ short mf_flags; /* Either 0 or RG_NOSHARE */ }; /* * The SI86PCHRGN subcommand of the sysi86() system call * change the memory mapped image of a file. * The request structure declared below is used to pass the values * system call parameters. A pointer to the structure is * passed as the second argument of the system call. */ struct cmf { char *cf_srcva; /* modified image address */ char *cf_dstva; /* location to patch */ long cf_count; /* size of patch */ }; /* * The SI86BADVISE subcommand of the sysi86() system call specifies * XENIX variant behavior for certain system calls and kernel routines. * The 'arg' argument of sysi86() for SI86BADVISE is an integer. Bits * 8..15 specify SI86B_SET or SI86B_GET. Bits 0..7 contain * SI86B_PRE_SV, SI86B_XOUT, or SI86B_XSDSWTCH. All these constants are * defined below. The 'arg' argument thus consists of either SI86B_SET * OR'ed with zero or more of SI86B_PRE_SV, SI86B_XOUT, and SI86B_XSDSWTCH, * or of SI86B_GET. */ #define SI86B_SET 0x0100 /* set badvise bits */ #define SI86B_GET 0x0200 /* retrieve badvise bits */ #define SI86B_PRE_SV 0x0008 /* follow pre-System V x.out behavior */ #define SI86B_XOUT 0x0010 /* follow XENIX x.out behavior */ #define SI86B_XSDSWTCH 0x0080 /* XENIX small model shared data */ /* context switching enabled */ /* * The request structure declared below is used by the XENIX 286 emulator * (/bin/x286emul) in conjunction with the SI86SHRGN subcommand of sysi86(). * The SI86SHRGN subcommand is used by the XENIX 286 emulator to support * XENIX shared data. The second argument passed to sysi86() is a * pointer to an xsdbuf struct. * * If the 'xsd_cmd' field of xsdbuf is SI86SHR_CP, the XENIX 286 emulator is * using the SI86SHRGN subcommand to set up XENIX small model shared data * context switching support for a given XENIX shared data segment. In this * case, the xsdbuf struct contains the start addr for the shared data in * 386 space, followed by the start addr for the shared data in the 286 * executable's private data. * * If the 'xsd_cmd' field is SI86SHR_SZ, the XENIX 286 emulator is using the * SI86SHRGN subcommand to retrieve the size of an existing XENIX shared * data segment. In this case, the xsdbuf struct contains the start addr * for the shared data in 386 space. * The size of the shared data segment starting at 'xsd_386vaddr' will * be returned in the 'xsd_size' field by sysi86(). */ #define SI86SHR_CP 0x1 /* SI86SHRGN used for XENIX sd context switch */ #define SI86SHR_SZ 0x2 /* SI86SHRGN used to get XENIX sd seg size */ struct xsdbuf { unsigned xsd_cmd; /* SI86SHRGN subcommand, either SI86SHR_CP */ /* or SI86SHR_SZ. */ char *xsd_386vaddr; /* Addr of "real" XENIX shared data seg in */ /* the emulator. */ union { char *xsd_286vaddr; /* Addr of XENIX shared data seg */ /* in the 286 data portion of the */ /* emulator. */ unsigned long xsd_size; /* Size of XENIX shared data seg */ } xsd_un; }; /* End XENIX Support */ /* * Cascade defines */ #define C2 'E' #define C3 'F' #define C4 'G' #define C6 'K' /* Enterprise IDNO defines */ #define E8R1 'R' #ifndef _KERNEL #ifdef __STDC__ extern int sysi86(int, ...); #else extern int sysi86(); #endif /* __STDC__ */ #endif /* !_KERNEL */ #ifdef __cplusplus } #endif #endif /* _SYS_SYSI86_H */
