Re: [Xen-devel] HD DMA

[Milan Holzäpfel <lists@xxxxxxxx>]

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On Thu, 30 Dec 2004 17:07:29 -0200
Ronaldo Lazzari <tuamae@xxxxxxxxxxxx> wrote:

> I compiled my own xen0 kernel, but I'm when I try to set DMA to my hard
> diks I get the folow message:
> 
> jack:/# hdparm -d1 /dev/hda
> 
> /dev/hda:
>  setting using_dma to 1 (on)
>  HDIO_SET_DMA failed: Operation not permitted
>  using_dma    =  0 (off)
> 
> Now I don't know if I forgot some stuff in kernel configuration or if I
> realy can't set DMA with xen0.

I risk a guess and say that you forgot to include the IDE driver which
provides DMA for your special chipset was not included because you used
Xen's default config?  (have a look at Device Drivers ->
ATA/ATAPI/MFM/RLL support for 2.6 menuconfig.)

Regards,
Milan

- -- 

                   Milan Holzäpfel alias jagdfalke alias jag

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