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Re: [Xen-users] DMA not enabled in Xen Kernel?

To: Charles Johnson <johnsoncharles@xxxxxxxxxxx>
Subject: Re: [Xen-users] DMA not enabled in Xen Kernel?
From: "M.A. Williamson" <maw48@xxxxxxxxx>
Date: 06 Jun 2005 17:45:22 +0100
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Chances are that the default XenLinux config doesn't support DMA for your IDE chipset. It'll work but you'll need to get the source release and compile a kernel (instructions in the manual) with support for your chipset.

Cheers,
Mark

On Jun 6 2005, Charles Johnson wrote:

I installed Xen using the binary release on debian sarge and got it to boot no problem but when I check if dma is enabled with 'hdparm /dev/hda' it's not.

I can't enable it either with 'hdparm -d1 /dev/hda'. Says operation not permited. Using my debian default kernel dma works just fine.

How can I enable dma with the Xen Kernel?

Thanks!



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