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

[Andreas Bollhalder]

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: address@hidden
[mailto:address@hidden On Behalf Of
zitu
Sent: Monday, November 08, 2004 11:15 AM
To: address@hidden; Jens Axboe
Subject: Re: [Qemu-devel] enabling bus-master IDE driver


*This message was transferred with a trial version of CommuniGate(tm)
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Quoting Jens Axboe <address@hidden>:
> 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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