RE: [Qemu-devel] enabling bus-master IDE driver

["Andreas Bollhalder" <bolle@geodb.org>]

Tried to load UDMA.SYS from FreeDOS. It complains about a too old BIOS
doesn't load. Has anybody any experience with this ?

Andreas

-----Original Message-----
From: qemu-devel-bounces+bolle=geodb.org@nongnu.org
[mailto:qemu-devel-bounces+bolle=geodb.org@nongnu.org] On Behalf Of
zitu
Sent: Monday, November 08, 2004 11:15 AM
To: qemu-devel@nongnu.org; Jens Axboe
Subject: Re: [Qemu-devel] enabling bus-master IDE driver


*This message was transferred with a trial version of CommuniGate(tm)
Pro*
Quoting Jens Axboe <qemu@kernel.dk>:
> On Sun, Nov 07 2004, Hetz Ben Hamo wrote:
> > > > > -    put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */
> > > > > +    put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA
supported */
> >
> > Care to put all the changes in 1 patch please, so I can put it on
my web
> site?
>
> Here you go.
>
(...)

On win95 guest, I can mark dma box and it stays marked. But
performance on
hdd did not change much.

On win xp guest, I still stay on PIO mode, unfortunately.

On Linux, no change. My original patched version already had DMA ok.

Any chance you'd have a fix for xp guest ?

Thanks for the previous patch.

Zitu
--


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