Boot program to help load tape kernels.
(You can even choose a tape segment!)
This commit is contained in:
gwr
parent
3b4d7bd966
commit
c890f5c659
|
|
@ -0,0 +1,13 @@
|
|||
# $NetBSD: Makefile,v 1.1.1.1 1995/10/13 21:27:30 gwr Exp $
|
||||
|
||||
SA_PROG= tapeboot
|
||||
SRCS= boot.c conf.c dev_tape.c version.c
|
||||
|
||||
all: ${SA_PROG}.bin
|
||||
|
||||
.include <bsd.prog.mk>
|
||||
|
||||
install: ${SA_PROG}.bin
|
||||
install ${COPY} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
|
||||
${SA_PROG}.bin ${DESTDIR}${MDEC_DIR}/${SA_PROG}
|
||||
|
||||
|
|
@ -0,0 +1,166 @@
|
|||
/* $NetBSD: boot.c,v 1.1.1.1 1995/10/13 21:27:30 gwr Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1994 Paul Kranenburg
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Paul Kranenburg.
|
||||
* 4. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This is a generic "first-stage" boot program.
|
||||
*
|
||||
* Note that this program has absolutely no filesystem knowledge!
|
||||
*
|
||||
* Instead, this uses a table of disk block numbers that are
|
||||
* filled in by the installboot program such that this program
|
||||
* can load the "second-stage" boot program.
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/reboot.h>
|
||||
#include <sys/exec.h>
|
||||
|
||||
#include <machine/mon.h>
|
||||
|
||||
#include "stand.h"
|
||||
#include "promboot.h"
|
||||
|
||||
/*
|
||||
* Boot device is derived from ROM provided information.
|
||||
*/
|
||||
#define LOADADDR 0x4000
|
||||
|
||||
extern int debug;
|
||||
extern char *version;
|
||||
|
||||
char line[80];
|
||||
|
||||
int block_size = 512;
|
||||
|
||||
|
||||
main()
|
||||
{
|
||||
struct open_file f;
|
||||
struct bootparam *bp;
|
||||
void (*entry)();
|
||||
char *addr;
|
||||
int n, error;
|
||||
|
||||
printf(">> NetBSD tapeboot [%s]\n", version);
|
||||
prom_get_boot_info();
|
||||
|
||||
/*
|
||||
* Set the tape file number to the next one, because
|
||||
* the boot program is first, then the kernel.
|
||||
*/
|
||||
bp = *romp->bootParam;
|
||||
bp->partNum += 1;
|
||||
|
||||
for (;;) {
|
||||
if (prom_boothow & RB_ASKNAME) {
|
||||
printf("tapeboot: segment? [%d] ", bp->partNum);
|
||||
gets(line);
|
||||
if (('0' <= line[0]) && (line[0] <= '9')) {
|
||||
bp->partNum = line[0] - '0';
|
||||
}
|
||||
}
|
||||
|
||||
printf("tapeboot: opening segment %d\n", bp->partNum);
|
||||
f.f_flags = F_RAW;
|
||||
if ((error = devopen(&f, 0, &addr)) != 0) {
|
||||
printf("tapeboot: open failed, error=%d\n", error);
|
||||
goto ask;
|
||||
}
|
||||
|
||||
addr = (char*)LOADADDR;
|
||||
error = loadfile(&f, addr);
|
||||
|
||||
printf("tapeboot: close (rewind)...\n");
|
||||
f.f_dev->dv_close(&f);
|
||||
if (error == 0)
|
||||
break;
|
||||
|
||||
printf("tapeboot: load failed, error=%d\n", error);
|
||||
ask:
|
||||
prom_boothow |= RB_ASKNAME;
|
||||
}
|
||||
|
||||
if (debug) {
|
||||
printf("Debug mode - enter c to continue...");
|
||||
/* This will print "\nAbort at ...\n" */
|
||||
asm(" trap #0");
|
||||
}
|
||||
|
||||
printf("Starting program at 0x%x\n", (long)addr);
|
||||
entry = (void (*)())addr;
|
||||
(*entry)();
|
||||
}
|
||||
|
||||
int
|
||||
loadfile(fp, addr)
|
||||
struct open_file *fp;
|
||||
char *addr;
|
||||
{
|
||||
char *buf;
|
||||
int n, blknum;
|
||||
int error = 0;
|
||||
/*
|
||||
* Loading a kernel. It WILL have an a.out header.
|
||||
* XXX - This assumes OMAGIC format!
|
||||
*/
|
||||
addr -= sizeof(struct exec); /* XXX */
|
||||
|
||||
/* Need to use a buffer that can be mapped into DVMA space. */
|
||||
buf = alloc(block_size);
|
||||
if (!buf)
|
||||
panic("tapeboot: alloc failed");
|
||||
|
||||
printf("tapeboot: loading ... ");
|
||||
/* limit program size to < 2MB */
|
||||
for (blknum = 0; blknum < 4096; blknum++) {
|
||||
|
||||
error = (fp->f_dev->dv_strategy)(fp->f_devdata, F_READ,
|
||||
blknum, block_size, buf, &n);
|
||||
if (error) {
|
||||
printf("(error=%d)\n", error);
|
||||
return EIO;
|
||||
}
|
||||
if (n == 0)
|
||||
break; /* end of tape */
|
||||
if (n != block_size) {
|
||||
printf(" (short read)\n");
|
||||
return EIO;
|
||||
}
|
||||
|
||||
bcopy(buf, addr, block_size);
|
||||
addr += block_size;
|
||||
}
|
||||
|
||||
printf("(%d blocks)\n", blknum);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
/* $NetBSD: conf.c,v 1.1.1.1 1995/10/13 21:27:30 gwr Exp $ */
|
||||
|
||||
#include <stand.h>
|
||||
#include <dev_tape.h>
|
||||
|
||||
struct devsw devsw[] = {
|
||||
{ "tape", tape_strategy, tape_open, tape_close, tape_ioctl },
|
||||
};
|
||||
int ndevs = 1;
|
||||
|
||||
int debug;
|
||||
|
|
@ -0,0 +1,150 @@
|
|||
/* $NetBSD: dev_tape.c,v 1.1.1.1 1995/10/13 21:27:30 gwr Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1993 Paul Kranenburg
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Paul Kranenburg.
|
||||
* 4. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This module implements a "raw device" interface suitable for
|
||||
* use by the stand-alone I/O library UFS file-system code, and
|
||||
* possibly for direct access (i.e. boot from tape).
|
||||
*
|
||||
* The implementation is deceptively simple because it uses the
|
||||
* drivers provided by the Sun PROM monitor. Note that only the
|
||||
* PROM driver used to load the boot program is available here.
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <machine/mon.h>
|
||||
#include <machine/saio.h>
|
||||
|
||||
#include "stand.h"
|
||||
|
||||
#include "dvma.h"
|
||||
#include "promdev.h"
|
||||
/* #include "dev_tape.h" XXX - needs stdarg.h */
|
||||
|
||||
struct saioreq tape_ioreq;
|
||||
|
||||
int
|
||||
tape_open(f, devname)
|
||||
struct open_file *f;
|
||||
char *devname; /* Device part of file name (or NULL). */
|
||||
{
|
||||
struct bootparam *bp;
|
||||
struct saioreq *si;
|
||||
int error;
|
||||
|
||||
#ifdef DEBUG_PROM
|
||||
printf("tape_open: %s\n", devname);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Setup our part of the saioreq.
|
||||
* (determines what gets opened)
|
||||
*/
|
||||
si = &tape_ioreq;
|
||||
bzero((caddr_t)si, sizeof(*si));
|
||||
bp = *romp->bootParam;
|
||||
|
||||
si->si_boottab = bp->bootDevice;
|
||||
si->si_ctlr = bp->ctlrNum;
|
||||
si->si_unit = bp->unitNum;
|
||||
si->si_boff = bp->partNum;
|
||||
|
||||
if ((error = prom_iopen(si)) != 0)
|
||||
return (error);
|
||||
|
||||
f->f_devdata = si;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
tape_close(f)
|
||||
struct open_file *f;
|
||||
{
|
||||
struct saioreq *si;
|
||||
|
||||
si = f->f_devdata;
|
||||
prom_iclose(si);
|
||||
f->f_devdata = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
tape_strategy(devdata, flag, dblk, size, buf, rsize)
|
||||
void *devdata;
|
||||
int flag;
|
||||
daddr_t dblk;
|
||||
u_int size;
|
||||
char *buf;
|
||||
u_int *rsize;
|
||||
{
|
||||
struct saioreq *si;
|
||||
struct boottab *ops;
|
||||
char *dmabuf;
|
||||
int si_flag, xcnt;
|
||||
|
||||
si = devdata;
|
||||
ops = si->si_boottab;
|
||||
|
||||
#ifdef DEBUG_PROM
|
||||
printf("tape_strategy: size=%d dblk=%d\n", size, dblk);
|
||||
#else
|
||||
twiddle();
|
||||
#endif
|
||||
|
||||
dmabuf = dvma_mapin(buf, size);
|
||||
|
||||
si->si_bn = dblk;
|
||||
si->si_ma = dmabuf;
|
||||
si->si_cc = size;
|
||||
|
||||
si_flag = (flag == F_READ) ? SAIO_F_READ : SAIO_F_WRITE;
|
||||
xcnt = (*ops->b_strategy)(si, si_flag);
|
||||
dvma_mapout(dmabuf, size);
|
||||
|
||||
#ifdef DEBUG_PROM
|
||||
printf("tape_strategy: xcnt = %x\n", xcnt);
|
||||
#endif
|
||||
|
||||
/* At end of tape, xcnt == 0 (not an error) */
|
||||
if (xcnt < 0)
|
||||
return (EIO);
|
||||
|
||||
*rsize = xcnt;
|
||||
return (0);
|
||||
}
|
||||
|
||||
int
|
||||
tape_ioctl()
|
||||
{
|
||||
return EIO;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
/* $NetBSD: dev_tape.h,v 1.1.1.1 1995/10/13 21:27:30 gwr Exp $ */
|
||||
|
||||
int tape_open __P((struct open_file *, ...));
|
||||
int tape_close __P((struct open_file *));
|
||||
int tape_strategy __P((void *, int, daddr_t, size_t, void *, size_t *));
|
||||
int tape_ioctl();
|
||||
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
/* $NetBSD: version.c,v 1.1.1.1 1995/10/13 21:27:30 gwr Exp $ */
|
||||
|
||||
/*
|
||||
* NOTE ANY CHANGES YOU MAKE TO THE BOOTBLOCKS HERE.
|
||||
*
|
||||
* 1.1
|
||||
*/
|
||||
|
||||
char *version = "$Revision: 1.1.1.1 $";
|
||||
Loading…
Reference in New Issue