[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: pause PV domain with pci passthrough
On 30/11/2010 14:17, "Sander Eikelenboom" <linux@xxxxxxxxxxxxxx> wrote: > The idea was that pausing it would make it possible to switch between running > and not running faster than with complete create/shutdown. > But it's not terribly important, just wondering if it was possible (already > thought that the pci stuff would probably be difficult) You could try pci detach/attach across 'xm pause'? -- Keir > -- > Sander > > Tuesday, November 30, 2010, 3:13:40 PM, you wrote: > >> On 30/11/2010 12:48, "Sander Eikelenboom" <linux@xxxxxxxxxxxxxx> wrote: > >>> Hmm save isn't allowed with a pci device passed through: >>> >>> #xm save 14 /tmp/savedomain.xen >>> Error: Migration not permitted with assigned PCI device. >>> >>> Would perhaps be wise to do that for pause as well when a pci device is >>> assigned ? > >> Yes, probably. Why do you want to pause a domain, anyway? Is it actually >> useful to be able to do that? > >> -- Keir > >>> -- >>> Sander >>> >>> >>> Tuesday, November 30, 2010, 1:36:59 PM, you wrote: >>> >>>> 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 >>>>> >>> >>> >>> >>> > > > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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