[Intel-gfx] [PATCH] kvm/vfio: Fix potential deadlock on vfio group_lock

[Jason Gunthorpe]

On Tue, Jan 31, 2023 at 09:46:18AM -0500, Anthony Krowiak wrote:

> > Maybe you should split that lock and have a dedicated apcb lock?
> 
> I don't think that would suffice for taking the vCPUs out of SIE.

Then I think we have to keep this patch and also do Matthew's patch to
keep kvm refs inside vfio as well.

Jason