diff options
| author | Toomas Soome <tsoome@me.com> | 2018-08-16 14:26:58 +0300 |
|---|---|---|
| committer | Dan McDonald <danmcd@joyent.com> | 2018-08-28 10:22:41 -0400 |
| commit | f8e0ecf7cceff807dcd13fe031936e1ff28193e3 (patch) | |
| tree | 041356807b9b493c280f4be48076398a5b9bc19d | |
| parent | 8a702e5580b812176cb498d7b89713e44435866a (diff) | |
| download | illumos-joyent-f8e0ecf7cceff807dcd13fe031936e1ff28193e3.tar.gz | |
9742 libi386: Add workaround for HP BIOS issues
Reviewed by: Yuri Pankov <yuripv@yuripv.net>
Approved by: Dan McDonald <danmcd@joyent.com>
| -rw-r--r-- | usr/src/boot/sys/boot/i386/libi386/biosdisk.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/usr/src/boot/sys/boot/i386/libi386/biosdisk.c b/usr/src/boot/sys/boot/i386/libi386/biosdisk.c index a760a373fa..6218465960 100644 --- a/usr/src/boot/sys/boot/i386/libi386/biosdisk.c +++ b/usr/src/boot/sys/boot/i386/libi386/biosdisk.c @@ -91,6 +91,8 @@ static int nbdinfo = 0; #define BD(dev) (bdinfo[(dev)->dd.d_unit]) +static void bd_io_workaround(struct disk_devdesc *dev); + static int bd_io(struct disk_devdesc *, daddr_t, int, caddr_t, int); static int bd_int13probe(struct bdinfo *bd); @@ -648,6 +650,14 @@ bd_chs_io(struct disk_devdesc *dev, daddr_t dblk, int blks, caddr_t dest, return (0); } +static void +bd_io_workaround(struct disk_devdesc *dev) +{ + uint8_t buf[8 * 1024]; + + bd_edd_io(dev, 0xffffffff, 1, (caddr_t)buf, 0); +} + static int bd_io(struct disk_devdesc *dev, daddr_t dblk, int blks, caddr_t dest, int dowrite) @@ -659,9 +669,18 @@ bd_io(struct disk_devdesc *dev, daddr_t dblk, int blks, caddr_t dest, return (-1); /* + * Workaround for a problem with some HP ProLiant BIOS failing to work + * out the boot disk after installation. hrs and kuriyama discovered + * this problem with an HP ProLiant DL320e Gen 8 with a 3TB HDD, and + * discovered that an int13h call seems to cause a buffer overrun in + * the bios. The problem is alleviated by doing an extra read before + * the buggy read. It is not immediately known whether other models + * are similarly affected. * Loop retrying the operation a couple of times. The BIOS * may also retry. */ + if (dowrite == 0 && dblk >= 0x100000000) + bd_io_workaround(dev); for (retry = 0; retry < 3; retry++) { /* if retrying, reset the drive */ if (retry > 0) { |