On 18/12/2024 14:08, Bertrand Marquis wrote:
>
>
> Hi Ayan,
>
>> On 18 Dec 2024, at 12:34, Ayan Kumar Halder <[email protected]> wrote:
>>
>>
>> On 18/12/2024 08:27, Bertrand Marquis wrote:
>>> Hi Ayan,
>> Hi Bertrand,
>>>
>>>> On 12 Dec 2024, at 20:03, Ayan Kumar Halder <[email protected]>
>>>> wrote:
>>>>
>>>> From: Michal Orzel <[email protected]>
>>>>
>>>> Add requirements for dom0less domain creation.
>>>>
>>>> Signed-off-by: Michal Orzel <[email protected]>
>>>> Signed-off-by: Ayan Kumar Halder <[email protected]>
>>>> ---
[...]
>>>> +SPIs
>>>> +----
>>>> +
>>>> +`XenSwdgn~spis~1`
>>>> +
>>>> +Description:
>>>> +Xen shall allocate a specified number of shared peripheral interrupts for
>>>> a
>>>> +domain.
>>> This is very ambiguous. What do you mean here ?
>> Xen shall provide a way to specify the number of shared peripheral
>> interrupts for a domain via the device tree .
>
> I am lost in how you achieve such a thing in the configuration.
> All you can do is assigned an interrupt to a domain, but the sharing part I
> do not see what Xen has to do with it.
This req is about Arm's SPIs (Shared Peripheral Interrupts) and the max number
you can allocate to a domU.
You can see more here:
https://xenbits.xenproject.org/gitweb/?p=xen.git;a=blob;f=docs/misc/arm/device-tree/booting.txt;hb=HEAD#l172
~Michal
