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Rototill the primary boot for... 

1. much faster speed
  2. support of more media types
This commit is contained in:
ross 1998-10-15 00:55:48 +00:00
parent c33589db84
commit df51a43618
1 changed files with 78 additions and 28 deletions
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106
sys/arch/alpha/stand/bootxx/bootxx.c
View File

@ -1,5 +1,16 @@
/* $NetBSD: bootxx.c,v 1.5 1998/08/27 12:20:51 tv Exp $ */
/* $NetBSD: bootxx.c,v 1.6 1998/10/15 00:55:48 ross Exp $ */
/*
* Copyright (C) 1998 by Ross Harvey
*
* This work was supported by Ross Harvey, Avalon Computer Systems, and The
* NetBSD Foundation.
*
* This work may be distributed under the terms of the original license
* below, provided that this notice is not changed. ROSS HARVEY,
* AVALON COMPUTER SYSTEMS, INC., AND THE NETBSD FOUNDATION DISCLAIM
* ALL LIABILITY OF ANY KIND FOR THE USE OF THIS SOFTWARE.
*/
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
@ -30,12 +41,13 @@
#include <sys/param.h>
#include <machine/prom.h>
#include <lib/libkern/libkern.h>
#include "stand/common/common.h"
#include "stand/common/bbinfo.h"
extern int _end, start;
extern void puts __P((char*)); /* XXX private, does not append '\n' */
extern void puts __P((const char *)); /* XXX private, does not append '\n' */
struct bbinfoloc desc = {
0xbabefacedeadbeef,
@ -45,7 +57,24 @@ struct bbinfoloc desc = {
0xdeadbeeffacebabe
};
int
#ifdef PBDEBUG
static void
errorstatus(const char *msg, u_int64_t val)
{
int i, c;
puts(msg);
for(i=60; i >= 0; i -= 4) {
c = val >> i & 0xf;
if (c >= 10)
c = c - 10 + 'a';
else c += '0';
putchar(c);
}
}
#endif
static int
open_dev(fd)
int *fd;
{
@ -62,23 +91,25 @@ open_dev(fd)
devlen = ret.u.retval;
ret.bits = prom_open(devname, devlen);
if (ret.u.status)
return 0;
*fd = ret.u.retval;
return 1;
}
int
load_file(bbinfop, loadaddr)
static int
load_file(fd, bbinfop, loadaddr)
int fd;
struct bbinfo *bbinfop;
char *loadaddr;
{
char *cp;
int twiddle;
prom_return_t ret;
int32_t cksum, *int32p;
int i, n, fd, rv;
char *cp;
int i, j, n, rv, nextblk, wantblk, blksize;
if (bbinfop->nblocks <= 0) {
puts("invalid number of blocks in boot program description\n");
@ -105,51 +136,70 @@ load_file(bbinfop, loadaddr)
return 0;
}
if (!open_dev(&fd)) {
puts("couldn't open disk device\n");
return 0;
}
cp = loadaddr;
rv = 1;
for (i = 0; i < bbinfop->nblocks; i++) {
puts(".");
ret.bits = prom_read(fd, bbinfop->bsize, cp,
bbinfop->blocks[i]);
puts("\b");
nextblk = 16;
for (i = twiddle = 0; i < bbinfop->nblocks; i++) {
wantblk = bbinfop->blocks[i];
blksize = bbinfop->bsize;
for(j = 1; i + 1 < bbinfop->nblocks
&& bbinfop->blocks[i + 1] == wantblk + j
&& blksize < 50 * 1024; ++i, ++j)
blksize += bbinfop->bsize;
for(; nextblk < wantblk && wantblk - nextblk <= 4; ++nextblk) {
putchar('+');
prom_read(fd, 512, cp, nextblk);
}
putchar(".oOo"[twiddle++ & 3]);
ret.bits = prom_read(fd, blksize, cp, wantblk);
putchar('\b');
nextblk += blksize / 512;
cp += blksize;
if (ret.u.status) {
rv = 0;
puts("BLOCK READ ERROR!\n");
puts("\nBLOCK READ ERROR!\n");
break;
}
cp += bbinfop->bsize;
}
prom_close(fd);
puts(".\n");
return (rv);
}
static void printdec(int n)
{
if (n)
printdec(n/10);
putchar(n % 10 | '0');
}
void
main()
{
struct bbinfo *bbinfop;
int fd;
char *loadaddr;
void (*entry) __P((void));
struct bbinfo *bbinfop;
void (*entry) __P((int));
/* Init prom callback vector. */
init_prom_calls();
puts("\nNetBSD/Alpha Primary Boot\n");
puts("\nNetBSD/Alpha " NETBSD_VERS " Primary Boot +\n");
bbinfop = (struct bbinfo *)&_end;
loadaddr = (char *)SECONDARY_LOAD_ADDRESS;
if (!load_file(bbinfop, loadaddr)) {
if (!open_dev(&fd)) {
puts("Can't open boot device\n");
return;
}
if (!load_file(fd, bbinfop, loadaddr)) {
puts("\nLOAD FAILED!\n\n");
return;
}
puts("Jumping to entry point...\n");
entry = (void (*)())loadaddr;
(*entry)();
puts("SECONDARY BOOT BLOCK RETURNED!\n");
entry = (void (*)(int))loadaddr;
(*entry)(fd);
puts("SECONDARY BOOT RETURNED!\n");
}