Xen regressions for ARM SMMU (non pci-passthrough)

Xen regressions for ARM SMMU (non pci-passthrough)

[manish jaggi]

Hi,

I am trying to find out about  the tests which are part of the Xen
regression suite  for Arm which tests the SMMU and non pic-passthrough
feature.

Can someone please help

-Regards
Manish

Re: Xen regressions for ARM SMMU (non pci-passthrough)

[Ian Campbell]

On Mon, 2014-10-27 at 13:56 +0530, manish jaggi wrote:
> I am trying to find out about  the tests which are part of the Xen
> regression suite  for Arm which tests the SMMU and non pic-passthrough
> feature.

There are currently no such tests in the osstest suite.

Ian.

Re: Xen regressions for ARM SMMU (non pci-passthrough)

[manish jaggi]

On 27 October 2014 14:57, Ian Campbell <Ian.Campbell@citrix.com> wrote:
> On Mon, 2014-10-27 at 13:56 +0530, manish jaggi wrote:
>> I am trying to find out about  the tests which are part of the Xen
>> regression suite  for Arm which tests the SMMU and non pic-passthrough
>> feature.
>
> There are currently no such tests in the osstest suite.
>
Is Julien Planning to add the tests ?
> Ian.
>
>

Re: Xen regressions for ARM SMMU (non pci-passthrough)

[Julien Grall]

Hello Manish,

On 10/27/2014 09:54 AM, manish jaggi wrote:
> On 27 October 2014 14:57, Ian Campbell <Ian.Campbell@citrix.com> wrote:
>> On Mon, 2014-10-27 at 13:56 +0530, manish jaggi wrote:
>>> I am trying to find out about  the tests which are part of the Xen
>>> regression suite  for Arm which tests the SMMU and non pic-passthrough
>>> feature.
>>
>> There are currently no such tests in the osstest suite.

Device passthrough is not supported in Xen upstream. So adding test for
it is not yet relevant.

For SMMU, there is no need to have specific test. Any platform with SMMU
describe in the device tree will use the SMMU drivers in Xen.

We have only one platform with SMMU platform in OSS-test which is
midway. But the device tree provided upstream doesn't have the SMMU nodes.

>>
> Is Julien Planning to add the tests ?

I don't plan to add any test or make midway uses SMMU for testing. You
are welcome to send a patch for it.

Regards,

-- 
Julien Grall

Re: Xen regressions for ARM SMMU (non pci-passthrough)

[manish jaggi]

On 27 October 2014 18:56, Julien Grall <julien.grall@linaro.org> wrote:
> Hello Manish,
>
> On 10/27/2014 09:54 AM, manish jaggi wrote:
>> On 27 October 2014 14:57, Ian Campbell <Ian.Campbell@citrix.com> wrote:
>>> On Mon, 2014-10-27 at 13:56 +0530, manish jaggi wrote:
>>>> I am trying to find out about  the tests which are part of the Xen
>>>> regression suite  for Arm which tests the SMMU and non pic-passthrough
>>>> feature.
>>>
>>> There are currently no such tests in the osstest suite.
>
> Device passthrough is not supported in Xen upstream. So adding test for
> it is not yet relevant.
>
Is it not targeted for Xen 4.5 ? I believed it was part of 4.5 release

> For SMMU, there is no need to have specific test. Any platform with SMMU
> describe in the device tree will use the SMMU drivers in Xen.
>
> We have only one platform with SMMU platform in OSS-test which is
> midway. But the device tree provided upstream doesn't have the SMMU nodes.
>
>>>
>> Is Julien Planning to add the tests ?
>
> I don't plan to add any test or make midway uses SMMU for testing. You
> are welcome to send a patch for it.
Is it not tested on Foundation Model ?
>
> Regards,
>
> --
> Julien Grall

Re: Xen regressions for ARM SMMU (non pci-passthrough)

[Konrad Rzeszutek Wilk]

On Tue, Oct 28, 2014 at 02:49:16PM +0530, manish jaggi wrote:
> On 27 October 2014 18:56, Julien Grall <julien.grall@linaro.org> wrote:
> > Hello Manish,
> >
> > On 10/27/2014 09:54 AM, manish jaggi wrote:
> >> On 27 October 2014 14:57, Ian Campbell <Ian.Campbell@citrix.com> wrote:
> >>> On Mon, 2014-10-27 at 13:56 +0530, manish jaggi wrote:
> >>>> I am trying to find out about  the tests which are part of the Xen
> >>>> regression suite  for Arm which tests the SMMU and non pic-passthrough
> >>>> feature.
> >>>
> >>> There are currently no such tests in the osstest suite.
> >
> > Device passthrough is not supported in Xen upstream. So adding test for
> > it is not yet relevant.
> >
> Is it not targeted for Xen 4.5 ? I believed it was part of 4.5 release

MMIO has been added in Xen 4.5. PCI passthrough = no.
> 
> > For SMMU, there is no need to have specific test. Any platform with SMMU
> > describe in the device tree will use the SMMU drivers in Xen.
> >
> > We have only one platform with SMMU platform in OSS-test which is
> > midway. But the device tree provided upstream doesn't have the SMMU nodes.
> >
> >>>
> >> Is Julien Planning to add the tests ?
> >
> > I don't plan to add any test or make midway uses SMMU for testing. You
> > are welcome to send a patch for it.
> Is it not tested on Foundation Model ?

I am confused. Do you have an foundation model? Are you seeing issues
with it? Did you report the bug to xen-devel?

Or are you merely asking whether said hardware has been tested?
Do you have that hardware?
> >
> > Regards,
> >
> > --
> > Julien Grall
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

Re: Xen regressions for ARM SMMU (non pci-passthrough)

[manish jaggi]

On 28 October 2014 19:27, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
> On Tue, Oct 28, 2014 at 02:49:16PM +0530, manish jaggi wrote:
>> On 27 October 2014 18:56, Julien Grall <julien.grall@linaro.org> wrote:
>> > Hello Manish,
>> >
>> > On 10/27/2014 09:54 AM, manish jaggi wrote:
>> >> On 27 October 2014 14:57, Ian Campbell <Ian.Campbell@citrix.com> wrote:
>> >>> On Mon, 2014-10-27 at 13:56 +0530, manish jaggi wrote:
>> >>>> I am trying to find out about  the tests which are part of the Xen
>> >>>> regression suite  for Arm which tests the SMMU and non pic-passthrough
>> >>>> feature.
>> >>>
>> >>> There are currently no such tests in the osstest suite.
>> >
>> > Device passthrough is not supported in Xen upstream. So adding test for
>> > it is not yet relevant.
>> >
>> Is it not targeted for Xen 4.5 ? I believed it was part of 4.5 release
>
> MMIO has been added in Xen 4.5. PCI passthrough = no.
In my mail I refer to non-pci device passthrough and not pci
passthrough. PCI passthrough is targeted in 4.6.
As per the Xen 4.5 development update mail IMHO non-pci passthrough
(dt node passthrough) is going in 4.5

*  Linux ARM - Device assigment (fair)
  -  Julien Grall

My PCI passthrough work is based on juliens non-pci passthrough xen
unstable tree, which I assume to be merged in 4.5 and I would rebase
on the 4.5 release.


>>
>> > For SMMU, there is no need to have specific test. Any platform with SMMU
>> > describe in the device tree will use the SMMU drivers in Xen.
>> >
>> > We have only one platform with SMMU platform in OSS-test which is
>> > midway. But the device tree provided upstream doesn't have the SMMU nodes.
>> >
>> >>>
>> >> Is Julien Planning to add the tests ?
>> >
>> > I don't plan to add any test or make midway uses SMMU for testing. You
>> > are welcome to send a patch for it.
>> Is it not tested on Foundation Model ?
>
> I am confused. Do you have an foundation model? Are you seeing issues
> with it? Did you report the bug to xen-devel?
>
> Or are you merely asking whether said hardware has been tested?
> Do you have that hardware?
I was enquiring that is there any other platform the Xen 4.5 non
pci-device passthrough works other than midway.
>> >
>> > Regards,
>> >
>> > --
>> > Julien Grall
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xen.org
>> http://lists.xen.org/xen-devel

Re: Xen regressions for ARM SMMU (non pci-passthrough)

[Konrad Rzeszutek Wilk]

On Tue, Oct 28, 2014 at 07:53:07PM +0530, manish jaggi wrote:
> On 28 October 2014 19:27, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
> > On Tue, Oct 28, 2014 at 02:49:16PM +0530, manish jaggi wrote:
> >> On 27 October 2014 18:56, Julien Grall <julien.grall@linaro.org> wrote:
> >> > Hello Manish,
> >> >
> >> > On 10/27/2014 09:54 AM, manish jaggi wrote:
> >> >> On 27 October 2014 14:57, Ian Campbell <Ian.Campbell@citrix.com> wrote:
> >> >>> On Mon, 2014-10-27 at 13:56 +0530, manish jaggi wrote:
> >> >>>> I am trying to find out about  the tests which are part of the Xen
> >> >>>> regression suite  for Arm which tests the SMMU and non pic-passthrough
> >> >>>> feature.
> >> >>>
> >> >>> There are currently no such tests in the osstest suite.
> >> >
> >> > Device passthrough is not supported in Xen upstream. So adding test for
> >> > it is not yet relevant.
> >> >
> >> Is it not targeted for Xen 4.5 ? I believed it was part of 4.5 release
> >
> > MMIO has been added in Xen 4.5. PCI passthrough = no.
> In my mail I refer to non-pci device passthrough and not pci
> passthrough. PCI passthrough is targeted in 4.6.
> As per the Xen 4.5 development update mail IMHO non-pci passthrough
> (dt node passthrough) is going in 4.5
> 
> *  Linux ARM - Device assigment (fair)

Well, that is the Linux side, not the Xen side.

>   -  Julien Grall
> 
> My PCI passthrough work is based on juliens non-pci passthrough xen
> unstable tree, which I assume to be merged in 4.5 and I would rebase

Which tree is that?

> on the 4.5 release.

We are in Xen 4.5 RC1 so the bar for new features is high.

> 
> 
> >>
> >> > For SMMU, there is no need to have specific test. Any platform with SMMU
> >> > describe in the device tree will use the SMMU drivers in Xen.
> >> >
> >> > We have only one platform with SMMU platform in OSS-test which is
> >> > midway. But the device tree provided upstream doesn't have the SMMU nodes.
> >> >
> >> >>>
> >> >> Is Julien Planning to add the tests ?
> >> >
> >> > I don't plan to add any test or make midway uses SMMU for testing. You
> >> > are welcome to send a patch for it.
> >> Is it not tested on Foundation Model ?
> >
> > I am confused. Do you have an foundation model? Are you seeing issues
> > with it? Did you report the bug to xen-devel?
> >
> > Or are you merely asking whether said hardware has been tested?
> > Do you have that hardware?
> I was enquiring that is there any other platform the Xen 4.5 non
> pci-device passthrough works other than midway.
> >> >
> >> > Regards,
> >> >
> >> > --
> >> > Julien Grall
> >>
> >> _______________________________________________
> >> Xen-devel mailing list
> >> Xen-devel@lists.xen.org
> >> http://lists.xen.org/xen-devel