Re: [Qemu-devel] DMA in Windows 2000/XP/2003

[Brad Campbell]

Kazu wrote:
> This patch might help..
>
> http://ebisa.hp.infoseek.co.jp/qemu/arcs/qemu-piix4-udma-20050514.zip

Interesting.. after applying that patch both my win2k and winxp installs 
refused to boot.
Winxp gets as far as the safe mode selection screen, select safe mode and it goes straight back to 
the selection screen. Win2k just bluescreens during the boot process mumbling something about being 
unable to access the boot disk.

However, a fresh clean winxp install appears to be working and is reporting DMA 
enabled.
(Also appears to be a little lighter on the host cpu, but have not really got 
any way of benchmarking).

Go figure ?!?

I'm wondering if this patch is ever likely to make it into mainline?

Brad
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