Messages in this thread |  | | | Date | Wed, 24 Jun 2015 09:31:12 +0530 | | Subject | Re: powerpc,numa: Memory hotplug to memory-less nodes ? | | From | Bharata B Rao <> |
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So will it be correct to say that memory hotplug to memory-less node isn't supported by PowerPC kernel ? Should I enforce the same in QEMU for PowerKVM ?
On Mon, Jun 22, 2015 at 10:18 AM, Bharata B Rao <bharata.rao@gmail.com> wrote: > Hi, > > While developing memory hotplug support in QEMU for PoweKVM, I > realized that guest kernel has specific checks to prevent hot addition > of memory to a memory-less node. > > I am referring to arch/powerpc/mm/numa.c:hot_add_scn_to_nid() which > has explicit checks to ensure that it returns a nid that has some some > memory (NODE_DATA(nid)->node_spanned_pages) even when user wants to > hotplug to a node that currently has zero memory. > > Is this limitation by design ? > > Regards, > Bharata. > -- > http://raobharata.wordpress.com/
-- http://raobharata.wordpress.com/
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