Re: [Xen-devel] Option iommu=1 causes hypervisor to start debugger

["Zhao, Yu" <yu.zhao@xxxxxxxxx>]

Which patch are you talking about? Since we can't get any clue from your 
log, can you please send us the output of `lspci -vvv'?
Thanks,
Yu

Alexia Benington wrote:
> Thanks Keir. Perhaps I should try with Yu Zhao's patch and see if that
> fixes the problem.
>
> -Alex
>
> On Tue, Feb 3, 2009 at 3:06 AM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx> wrote:
> > It's needed for passing through physical devices to HVM guests.
> >
> >  -- Keir
> >
> > On 02/02/2009 23:42, "Alexia Benington" <alexbenington@xxxxxxxxx> wrote:
> >
> > > If I do not include the iommu option, I/O virtualisation is disabled.
> > > I never thought that iommu is a necessary prerequisite for I/O virt,
> > > or am I mistaken?
> > >
> > > -Alex
> > >
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