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authorBharata B Rao <bharata@linux.vnet.ibm.com>2015-06-29 14:14:32 +0530
committerDavid Gibson <david@gibson.dropbear.id.au>2015-09-23 10:51:11 +1000
commitb556854bd8524c26b8be98ab1bfdf0826831e793 (patch)
tree7cbe06ba4ca9f0e263e4173f1b59b5fb93ee8223 /hw/ppc/spapr_pci.c
parentc20d332a85c95245e3b720bfea1bd02e3a311463 (diff)
spapr: Don't allow memory hotplug to memory less nodes
Currently PowerPC kernel doesn't allow hot-adding memory to memory-less node, but instead will silently add the memory to the first node that has some memory. This causes two unexpected behaviours for the user. - Memory gets hotplugged to a different node than what the user specified. - Since pc-dimm subsystem in QEMU still thinks that memory belongs to memory-less node, a reboot will set things accordingly and the previously hotplugged memory now ends in the right node. This appears as if some memory moved from one node to another. So until kernel starts supporting memory hotplug to memory-less nodes, just prevent such attempts upfront in QEMU. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc/spapr_pci.c')
0 files changed, 0 insertions, 0 deletions