On Wed, 16 Nov 2022, Andre Przywara wrote:
> On Thu, 10 Nov 2022 12:32:49 -0800 (PST)
> Stefano Stabellini wrote:
> > On Wed, 9 Nov 2022, Michal Orzel wrote:
> > > Hi Jiamei,
> > >
> > > On 09/11/2022 09:25, Jiamei Xie wrote:
> > > >
> > > >
> > > > Hi Michal，
> > > >
> > > > Below log can b
; Michal Orzel
> Cc: xen-devel@lists.xenproject.org; Wei Chen ;
> Bertrand Marquis ; jul...@xen.org
> Subject: RE: Xen Arm vpl011 UART will cause segmentation fault in Linux
> guest
>
> Hi
>
> I have wrote a kernel patch to fix this. And I have tested. It will not have
el
>
> Cc: xen-devel@lists.xenproject.org; Wei Chen ;
> Bertrand Marquis ; jul...@xen.org
> Subject: RE: Xen Arm vpl011 UART will cause segmentation fault in Linux
> guest
>
> Hi
>
> > -Original Message-
> > From: Stefano Stabellini
> > Sen
driver:
> the issue is that the pl011 driver and the sbsa-uart driver share the
> same code in Linux so it happens sometimes that a pl011-only feature
> creeps into the sbsa-uart driver by mistake.
>
>
> > >> -----Original Message-
> > >> From: Michal Orzel
>
>
> > >> -----Original Message-----
> > >> From: Michal Orzel
> > >> Sent: Wednesday, November 9, 2022 3:40 PM
> > >> To: Jiamei Xie ; xen-devel@lists.xenproject.org
> > >> Cc: Wei Chen ; Bertrand Marquis
&g
--
> >> From: Michal Orzel
> >> Sent: Wednesday, November 9, 2022 3:40 PM
> >> To: Jiamei Xie ; xen-devel@lists.xenproject.org
> >> Cc: Wei Chen ; Bertrand Marquis
> >> ; jul...@xen.org; sstabell...@kernel.org
> >> Subject: Re: Xen Arm vpl011 UAR
devel@lists.xenproject.org
>> Cc: Wei Chen ; Bertrand Marquis
>> ; jul...@xen.org; sstabell...@kernel.org
>> Subject: Re: Xen Arm vpl011 UART will cause segmentation fault in Linux
>> guest
>>
>> Hi Jiamei,
>>
>> On 09/11/2022 08:20, Jiamei Xie wrote:
; ; jul...@xen.org; sstabell...@kernel.org
> Subject: Re: Xen Arm vpl011 UART will cause segmentation fault in Linux
> guest
>
> Hi Jiamei,
>
> On 09/11/2022 08:20, Jiamei Xie wrote:
> >
> >
> > Hi all,
> >
> > When the guest kernel enables DMA engine
Hi Jiamei,
On 09/11/2022 08:20, Jiamei Xie wrote:
>
>
> Hi all,
>
> When the guest kernel enables DMA engine with "CONFIG_DMA_ENGINE=y", Linux
> AMBA PL011 driver will access PL011 DMACR register. But this register have
> not been supported by vpl011 of Xen. Xen will inject a data abort into
