Re: [PATCH] xen/events: fix binding user event channels to cpus

From: Boris Ostrovsky
Date: Mon Jul 01 2019 - 22:09:39 EST


On Fri, Jun 21, 2019 at 08:47:03PM +0200, Juergen Gross wrote:
> When binding an interdomain event channel to a vcpu via
> IOCTL_EVTCHN_BIND_INTERDOMAIN not only the event channel needs to be
> bound, but the affinity of the associated IRQi must be changed, too.
> Otherwise the IRQ and the event channel won't be moved to another vcpu
> in case the original vcpu they were bound to is going offline.
>
> Cc: <stable@xxxxxxxxxxxxxxx> # 4.13
> Fixes: c48f64ab472389df ("xen-evtchn: Bind dyn evtchn:qemu-dm interrupt to next online VCPU")
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>