On Thu, Dec 24, 2015 at 02:52:53PM +0530, Anshuman Khandual wrote: > On 12/22/2015 10:44 AM, David Gibson wrote: > > I've discussed with Paul and Ben previously the possibility of > > extending PAPR to allow changing the size of a running guest's hash > > page table (HPT). This would allow for much more flexible memory > > hotplug, since the HPT wouldn't have to be sized in advance for the > > maximum possible memory size of the guest. > > Does it include reducing the size of HPT as well ?
It does, but that could fail with H_PTEG_FULL if there's a collision
between bolted entries in the reduced table.
--
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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