On Wed, Apr 11, 2018 at 02:41:58PM -0400, Serhii Popovych wrote:
> Now PowerPC Linux kernel supports hot-add to NUMA nodes not populated
> initially with memory we can enable such support in qemu. This requires
> two changes:
>
> o Add device tree property "ibm,max-associativity-domains" to let
> guest kernel chance to find max possible NUMA node
>
> o Revert commit b556854bd852 ("spapr: Don't allow memory hotplug to
> memory less nodes") to remove check for hot-add to memory-less node.
>
> See description messges for individual changes for more details.
>
> v3:
> - Make layer for max_cpus unspecified instead of setting it to zero.
> Not adding cpu_to_be32(spapr_vcpu_id(spapr, max_cpus - 1)) because
> at the moment we only want max number for numa nodes to enable feat.
> - Rebase to current state of master branch.
>
> v2:
> - Reorder patches in series according to description above.
> - Add extra coment to revert noticing return to previous behaviour for
> guests without support for hot-add to empty node.
> - Drop max_cpus from topology in property due to vcpu id discontiguous
> allocations. Thanks to David Gibson for extra explanation.
> - Rebase to current state of master branch.
>
> Serhii Popovych (2):
> spapr: Add ibm,max-associativity-domains property
> Revert "spapr: Don't allow memory hotplug to memory less nodes"
Applied to ppc-for-2.13, thanks.
--
David Gibson| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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