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extboot should update number of HDs reported by BIOS

PATCH Applied Gleb Natapov 4 participants 5 messages Mar 24, 2009 KVM

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Gleb Natapov

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#0 lore raw

PATCH 1/1 extboot should update number of HDs reported by BIOS

This fixes Vista boot from virtio-blk issue.

Signed-off-by Gleb Natapov <[email protected]>
extboot/extboot.S +3 -0
index e3d1adf..1e60f68 100644
@@ -32,6 +32,9 @@ _start:
 	xor %ax, %ax
 	mov %ax, %ds
 
+	/* there is one more bootable HD */
+	incb 0x0475
+
 	/* save old int 19 */
 	mov (0x19*4), %eax
 	mov %eax, %cs:old_int19

--
Gleb.

#1 lore raw
Quoted 1 line · Gleb Natapov

This fixes Vista boot from virtio-blk issue.

Did I miss Windows virtio block drivers? ;)

Signature · 2 lines
Tomasz Chmielewski
http://wpkg.org
author
#2 lore raw
Quoted 5 lines · Tomasz Chmielewski
Quoted 1 line · Gleb Natapov

This fixes Vista boot from virtio-blk issue.

Did I miss Windows virtio block drivers? ;)

With this patch you'll get better experience with virtio block drivers when they will be released! :)

--
Gleb.

Applied
#4 lore raw
In reply to Gleb Natapov
Quoted 3 lines · Gleb Natapov

This fixes Vista boot from virtio-blk issue.

Applied, thanks.

Signature · 1 line
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
#3 lore raw
In reply to Gleb Natapov
Quoted 4 lines · Gleb Natapov
Quoted 2 lines · Tomasz Chmielewski

Gleb Natapov schrieb:

Quoted 9 lines
Quoted 5 lines
Quoted 2 lines

This fixes Vista boot from virtio-blk issue.

Did I miss Windows virtio block drivers? ;)

With this patch you'll get better experience with virtio block drivers when they will be released! :)

We're actively working on open source the net and block windows drivers. There is no due date but it is progressing nicely.

Quoted 7 lines

--
Gleb.
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