diff options
Diffstat (limited to 'sys/arch/i386/stand/libsa/biosdev.c')
| -rw-r--r-- | sys/arch/i386/stand/libsa/biosdev.c | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/sys/arch/i386/stand/libsa/biosdev.c b/sys/arch/i386/stand/libsa/biosdev.c index 4b31eff71c5..76670c34eea 100644 --- a/sys/arch/i386/stand/libsa/biosdev.c +++ b/sys/arch/i386/stand/libsa/biosdev.c @@ -1,4 +1,4 @@ -/* $OpenBSD: biosdev.c,v 1.58 2003/06/03 20:22:11 mickey Exp $ */ +/* $OpenBSD: biosdev.c,v 1.59 2003/06/27 05:13:19 weingart Exp $ */ /* * Copyright (c) 1996 Michael Shalayeff @@ -46,6 +46,7 @@ static int CHS_rw (int, int, int, int, int, int, void *); static int EDD_rw (int, int, u_int64_t, u_int32_t, void *); extern int debug; +int bios_bootdev; #if 0 struct biosdisk { @@ -88,7 +89,7 @@ bios_getdiskinfo(dev, pdi) int dev; bios_diskinfo_t *pdi; { - u_int rv, secl, sech; + u_int rv; /* Just reset, don't check return code */ rv = biosdreset(dev); @@ -122,22 +123,6 @@ bios_getdiskinfo(dev, pdi) pdi->bios_cylinders &= 0x3ff; pdi->bios_cylinders++; - /* - * NOTE: This seems to hang on certain machines. Use function #8 - * first, and verify with #21 IFF #8 succeeds first. - * Do not try this for floppy 0 (to support CD-ROM boot). - */ - if (dev) { - __asm __volatile (DOINT(0x13) ";setc %b0" - : "=a" (rv), "=d" (secl), "=c" (sech) - : "0" (0x15FF), "1" (dev), "2" (0xFFFF) - : "cc"); - if (!(rv & 0xff00)) - return (1); - if (rv & 0xff) - return (1); - } - /* NOTE: * This currently hangs/reboots some machines * The IBM Thinkpad 750ED for one. @@ -148,7 +133,7 @@ bios_getdiskinfo(dev, pdi) * Future hangs (when reported) can be "fixed" * with getSYSCONFaddr() and an exceptions list. */ - if (dev & 0x80) { + if (dev & 0x80 && (dev == 0x80 || dev == 0x81 || dev == bios_bootdev)) { int bm; /* EDD support check */ __asm __volatile(DOINT(0x13) "; setc %b0" |