[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Is: cpuid creation of PV guests is not correct. Was:Re: [PATCH v6 00/10] vnuma introduction
On Tue, Jul 22, 2014 at 6:53 PM, Dario Faggioli <dario.faggioli@xxxxxxxxxx> wrote: > On Tue, 2014-07-22 at 15:43 -0400, Konrad Rzeszutek Wilk wrote: >> > I.e., no matter how I pin the vcpus, the guest sees the 4 vcpus as if >> > they were all SMT siblings, within the same core, sharing all cache >> > levels. >> >> My recollection was that the setting of these CPUID values is >> tied in how the toolstack sees it - and since the toolstack >> runs in the initial domain - that is where it picks this data up. >> >> This problem had been discussed by Andrew Cooper at some point >> (Hackathon? Emails? IRC?) and moved under the 'fix cpuid creation/parsing'. >> >> I think that this issue should not affect Elena's patchset - >> as the vNUMA is an innocent bystander that gets affected by this. >> > Agreed. Let's live with the WARN for now or, if that is annoying (e.g. > for testing/benchmarking) with whatever (local!) hack one needs. > > Regards, > Dario Thank you guys, works for me for now. > > -- > <<This happens because I choose it to happen!>> (Raistlin Majere) > ----------------------------------------------------------------- > Dario Faggioli, Ph.D, http://about.me/dario.faggioli > Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK) > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxx > http://lists.xen.org/xen-devel > -- Elena _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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