[src/trunk]: src/sys/arch/i386/stand/lib use bios' idea of the basemem size a...

[dbj <dbj%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/88cab8d0c295
branches:  trunk
changeset: 482799:88cab8d0c295
user:      dbj <dbj%NetBSD.org@localhost>
date:      Tue Feb 22 07:45:04 2000 +0000

description:
use bios' idea of the basemem size and create the kernel stack
at the top of it instead of hard coding 0x90000

diffstat:

 sys/arch/i386/stand/lib/exec.c |  9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diffs (44 lines):

diff -r e7eab91c1ba1 -r 88cab8d0c295 sys/arch/i386/stand/lib/exec.c
--- a/sys/arch/i386/stand/lib/exec.c    Tue Feb 22 06:47:27 2000 +0000
+++ b/sys/arch/i386/stand/lib/exec.c    Tue Feb 22 07:45:04 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: exec.c,v 1.14 1999/09/07 18:27:58 ross Exp $    */
+/*     $NetBSD: exec.c,v 1.15 2000/02/22 07:45:04 dbj Exp $     */
 
 /*
  * Copyright (c) 1982, 1986, 1990, 1993
@@ -94,6 +94,7 @@
        u_long          marks[MARK_MAX];
        struct btinfo_symtab btinfo_symtab;
        u_long          extmem;
+       u_long          basemem;
 #ifdef XMS
        u_long          xmsmem;
        physaddr_t      origaddr = loadaddr;
@@ -116,6 +117,7 @@
        BI_ADD(&btinfo_console, BTINFO_CONSOLE, sizeof(struct btinfo_console));
 
        extmem = getextmem();
+       basemem = getbasemem();
 
 #ifdef XMS
        if ((getextmem1() == 0) && (xmsmem = checkxms())) {
@@ -195,7 +197,7 @@
        boot_argv[2] = vtophys(bootinfo);       /* old cyl offset */
        /* argv[3] below */
        boot_argv[4] = extmem;
-       boot_argv[5] = getbasemem();
+       boot_argv[5] = basemem;
 
        close(fd);
 
@@ -241,7 +243,8 @@
        btinfo_symtab.esym = marks[MARK_END];
        BI_ADD(&btinfo_symtab, BTINFO_SYMTAB, sizeof(struct btinfo_symtab));
 
-       startprog(marks[MARK_ENTRY], BOOT_NARGS, boot_argv, 0x90000);
+       startprog(marks[MARK_ENTRY], BOOT_NARGS, boot_argv,
+               i386_trunc_page(basemem*1024));
        panic("exec returned");
 
 out: