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

[manish jaggi <manishjaggi.oss@xxxxxxxxx>]

On 28 October 2014 19:27, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
> On Tue, Oct 28, 2014 at 02:49:16PM +0530, manish jaggi wrote:
>> On 27 October 2014 18:56, Julien Grall <julien.grall@xxxxxxxxxx> wrote:
>> > Hello Manish,
>> >
>> > On 10/27/2014 09:54 AM, manish jaggi wrote:
>> >> On 27 October 2014 14:57, Ian Campbell <Ian.Campbell@xxxxxxxxxx> 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
>>
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>> http://lists.xen.org/xen-devel

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