[Xen-devel] Re: pause PV domain with pci passthrough

[Keir Fraser <keir@xxxxxxx>]

On 30/11/2010 12:14, "Sander Eikelenboom" <linux@xxxxxxxxxxxxxx> wrote:

> Hi Keir/Konrad,
> 
> Should it be possible to pause a PV domain ("xm pause") when it has pci
> devices passed through ?
> If not, should it work with a HVM with pci passthrough ?
> 
> Trying with a PV domain gave troubles so far.

It might give problems with pending pass-thru interrupts not getting handled
by the paused domain? That could block other, more critical interrupts, like
for disc controllers in dom0. Just a theory. I wouldn't generally recommend
pausing any domain, as a guest OS could get upset getting descheduled for
significant periods of time without being told about it (as a PV guest is
for save/restore).

 -- Keir

> --
> Sander
> 



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