Re: [Xen-devel] SMMU, Unhandled context fault

[Julien Grall <julien.grall@xxxxxxx>]

On 29/04/16 15:28, Peng Fan wrote:
> Hi Julien,
Hello Peng,

> On Thu, Apr 28, 2016 at 02:14:58PM +0100, Julien Grall wrote:
> > > Is there any big difference between XEN SMMU driver and linux SMMU driver?
> > > I know that XEN only support Stage 2. But the initliaization flow is almost the 
> > > same.
> > The SMMU driver for Xen is a port from Linux 3.19-rc0. Since then the Linux
> > driver has been reworked and it might be possible that we have missed some
> > bug fix.
> >
> > Aside that, for Xen, the page tables are always shared between the SMMU and
> > the processor.
> Thanks. I shared two picture that dumped using TRACE32.
>
> https://drive.google.com/file/d/0B9ruJqJLIGp7cHhhSFNSNC00MHc/view?usp=sharing
> https://drive.google.com/file/d/0B9ruJqJLIGp7dmlqVllXYTIxajQ/view?usp=sharing
>
> Would you please help check?
I am sorry but I have got no idea what each columns are supposed to 
contain. Can you share more details?
Regards,

--
Julien Grall

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