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Re: [PATCH v1 01/14] xen/pci: Refactor MSI code that implements MSI functionality within XEN
- To: Julien Grall <julien@xxxxxxx>
- From: Rahul Singh <Rahul.Singh@xxxxxxx>
- Date: Thu, 19 Aug 2021 14:16:55 +0000
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- Thread-topic: [PATCH v1 01/14] xen/pci: Refactor MSI code that implements MSI functionality within XEN
Hi Julien,
> On 19 Aug 2021, at 1:18 pm, Julien Grall <julien@xxxxxxx> wrote:
>
> Hi Rahul,
>
> On 19/08/2021 13:02, Rahul Singh wrote:
>> MSI code that implements MSI functionality to support MSI within XEN is
>> not usable on ARM. Move the code under CONFIG_HAS_PCI_MSI flag to gate
>
> Can you clarify what you mean by not usable? Is it because we lack of support
> or we have no plan to use it?
We have no plan to use it. Code moved to CONFIG_HAS_PCI_MSI will only be
required for ARM if we
decide to support PCI device access (PCI MSI interrupt support) within XEN. As
of now, we are planning
to add support for PCI device access for DOM0/DOMU guests not for XEN.
Regards,
Rahul
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