diff options
| author | Kenneth R Westerback <krw@cvs.openbsd.org> | 2011-03-14 22:14:41 +0000 |
|---|---|---|
| committer | Kenneth R Westerback <krw@cvs.openbsd.org> | 2011-03-14 22:14:41 +0000 |
| commit | 69b33539c4420ab485161d9744ad57280e229fa7 (patch) | |
| tree | b5502d3403d4ba32abc4a364e1499192a6ec4d5b /sys/arch/amd64/stand/libsa/biosdev.h | |
| parent | 26cdeae19d2eaec023adb36e2b08a132e413779b (diff) | |
Clamp BIOS io attempts to < 2 ^28 - 1 sectors (a.k.a. 128GB for
512-byte sectors) as some BIOSen get confused when we ask for sectors
higher up.
Uss u_int throughout the boot code to calculate sector addresses,
since 32 bits is enough to do 28 ^ 1 - 1 arithmetic. Add checks
for wraparound.
I can now install and boot from the 7th extended partition below
128GB.
Much feedback & guidance from deraadt@. Also from weingart@ on
BIOS io.
ok deraadt@ (less a couple of minor tweaks found in testing)
Diffstat (limited to 'sys/arch/amd64/stand/libsa/biosdev.h')
| -rw-r--r-- | sys/arch/amd64/stand/libsa/biosdev.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/arch/amd64/stand/libsa/biosdev.h b/sys/arch/amd64/stand/libsa/biosdev.h index 765ba0d0e59..fc0a0ce69ea 100644 --- a/sys/arch/amd64/stand/libsa/biosdev.h +++ b/sys/arch/amd64/stand/libsa/biosdev.h @@ -1,4 +1,4 @@ -/* $OpenBSD: biosdev.h,v 1.3 2011/03/13 00:13:52 deraadt Exp $ */ +/* $OpenBSD: biosdev.h,v 1.4 2011/03/14 22:14:40 krw Exp $ */ /* * Copyright (c) 1996 Michael Shalayeff @@ -49,7 +49,7 @@ int biosopen(struct open_file *, ...); int biosclose(struct open_file *); int biosioctl(struct open_file *, u_long, void *); int bios_getdiskinfo(int, bios_diskinfo_t *); -int biosd_io(int, bios_diskinfo_t *, daddr32_t, int, void *); +int biosd_io(int, bios_diskinfo_t *, u_int, int, void *); const char * bios_getdisklabel(bios_diskinfo_t *, struct disklabel *); /* diskprobe.c */ |