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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2005 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
#pragma ident "%Z%%M% %I% %E% SMI"
#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);
#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 */
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