From: David Muench <davemuench@gmail.com>
To: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
Cc: xen-devel List <xen-devel@lists.xensource.com>
Subject: Re: [ivtv-devel] Problems loading ivtv in Xen - DMA issues?
Date: Mon, 11 Jul 2005 09:08:14 -0400 [thread overview]
Message-ID: <bc0c36d305071106087630816c@mail.gmail.com> (raw)
In-Reply-To: <38a9ac6264e50346c160833d732fc567@cl.cam.ac.uk>
On 7/11/05, Keir Fraser <Keir.Fraser@cl.cam.ac.uk> wrote:
>
> One last thing you might want to try is to edit
> linux-2.6.11/arch/xen/i386/kernel/pci-dma.c. There you will see that
> there are four separate uses of memcpy(), each conditional on a test of
> the form 'if (direction != DMA_xxx)'. You *might* have more success if
> you remove the direction-conditional tests and always memcpy.
>
> Apart from that, this needs someone with hardware and expertise, and
> who cares about both ivtv and xen, to wade in. :-)
I'll give that a shot tonight, thanks for the suggestion. I really
appreciate your efforts and if that doesn't help, I'll see if anyone
on the ivtv-devel list is into Xen too. I wish I had the kernel
programming expertise myself. But at least the drivers work well in
dom0.
Stupid question, but is there any way to tell Xen to allocate a domU
contiguously? Or is that just not the Xen way, so to speak?
Dave
--
David Muench - davemuench@gmail.com
Jabber ID: dave@jabber.wasteland.org
next prev parent reply other threads:[~2005-07-11 13:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bc0c36d305070607205e82ea14@mail.gmail.com>
[not found] ` <1120750950.1556.24.camel@mud>
2005-07-07 16:07 ` [ivtv-devel] Problems loading ivtv in Xen - DMA issues? David Muench
2005-07-07 17:22 ` Keir Fraser
2005-07-07 17:34 ` David Muench
2005-07-08 4:01 ` Andrew May
2005-07-08 13:05 ` Keir Fraser
2005-07-08 15:38 ` David Muench
2005-07-08 16:50 ` Keir Fraser
2005-07-11 10:10 ` Keir Fraser
2005-07-11 13:08 ` David Muench [this message]
2005-07-11 13:20 ` Keir Fraser
2005-07-13 19:51 ` David Muench
2005-07-13 22:06 ` Keir Fraser
2005-07-15 12:43 ` David Muench
2005-07-15 12:50 ` Keir Fraser
2005-07-15 12:57 ` David Muench
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