Re: [RFC PATCH] xen: privcmd: fix ioeventfd/ioreq crashing PV domain

Demi Marie Obenour
2025-10-19T01:07:11Z

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On 10/18/25 20:42, Demi Marie Obenour wrote:
> I'm pretty sure Xen doesn't support ioeventfd at all yet. There are
> two options:
>
> 1. Port the backend to use an ioreq server instead of ioeventfd.
> 2. Modify Linux (and possibly Xen) to support ioeventfd.
>
> Which virtio device are you trying to implement? virtio-GPU will need
> a lot of additional work and it would probably be best to discuss
> this privately (over a call or similar). Others are likely to be
> significantly easier.

Whoops, I got confused and didn't see you were using a Xen-native
frontend.