Virtualization - Feb 2023 - [EXT] Re: [RFC PATCH 4/4] PCI: endpoint: function: Add EP function driver to provide virtio net device

On 2023/02/08 0:37, Frank Li wrote:
>>> but it may need update host side pci virtio driver.
>> Thanks, is it possible to use  MSI-X as well? The virtio spec
>> indicates to use legacy irq or
>> MSI-X only.
> I supposed yes. It is depend MSI controller type in EP side.
> But not like standard PCI MSI-X, it is platform MSI-X irq.
>
> If use GIC-its, it should support MSI-X.
>
> Thomas Gleixner is working on pre-device msi irq domain.
> https://lore.kernel.org/all/20221121135653.208611233 at linutronix.de
>
> I hope Thomas can finish their work soon.
> so I can continue my patch upstream work.
> https://lore.kernel.org/imx/87wn7evql7.ffs at tglx/T/#u
Thank for sharing this those information. I'll see the details to embed.
>> Best,
>> Shunsuke.
Best,

Shunsuke.