[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH RFC v2 0/2] linux/vnuma: vNUMA PV guest support introduction
On mar, 2013-09-17 at 04:33 -0400, Elena Ufimtseva wrote: > This patchset introduces vNUMA for PV domU guest. > I'm picky and I know it, but I think domU and guest are synonyms... Having just one of them should be enough. Also, the subject line "linux/vnuma: vNUMA...". It is indeed a good practice to indicate to what component and subsystem the patches applies to. However, in this case, I don't think havin "linux/" there adds much, since you'll be sending these mainly in LKML (although, yes, they'll go on xen-devel too, but I honestly think we can manage). Regarding the "/vnuma" part, well, vnuma isn't really a subsystem. Actually, it does not even exist before this series, so again, I won't put it there. Actually, from a Linux developer/maintainer point of view, these patches are about Xen, so something like "xen:..." or "x86/xen:" is probably better > Enables PV guest to discover NUMA topology provided by Xen > and initializes NUMA topology on boot. XENMEM subop hypercall > is used to retreive information from Xen. > The fact that this happens during the regular x86 NUMA initialization phase (i.e., in x86_numa_init()) is worth mentioning here. > Xen provides number > of NUMA nodes, memory regions (start and end pfn) constructed > based on e820 domU map, distance table and cpu to node map. i > xen_numa_init is called to setup NUMA related structures. > To enable this mechanism, kernel should be compiled as PV guest > with CONFIG_NUMA=y and Xen should support vNUMA functionality > (patchset > http://lists.xenproject.org/archives/html/xen-devel/2013-09/msg01337.html ). > This is fine. Perhaps I'd add something about future plans, which are to extend this to work for Dom0 too. Dario -- <<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) Attachment:
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