[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH RFC 1/4] xen: evtchn: make evtchn_reset() ready for soft reset
On 04/06/15 15:05, Tim Deegan wrote: > At 15:35 +0200 on 03 Jun (1433345719), Vitaly Kuznetsov wrote: >> We need to close all event channel so the domain performing soft reset >> will be able to open them back. Interdomain channels are, however, >> special. We need to keep track of who opened it as in (the most common) >> case it was opened by the control domain we won't be able (and allowed) to >> re-establish it. > > > I'm not sure I understand -- can you give an example of what this is > avoiding? I would have thought that the kexec'ing VM needs to tear > down _all_ its connections and then restart the ones it wantrs in the > new OS. There are some that are in state ECS_UNBOUND (console, xenstore, I think) at start of day that are allocated on behalf of the domain by the toolstack. The kexec'd image will expect them in these same state. David _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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