Re: [PATCH 07/13] KVM: PPC: Book3S HV: Adjust host/guest context switch for POWER9

2016-11-18 Thread Paul Mackerras
On Fri, Nov 18, 2016 at 08:05:47PM +0530, Aneesh Kumar K.V wrote: > Paul Mackerras writes: > > > Some special-purpose registers that were present and accessible > > by guests on POWER8 no longer exist on POWER9, so this adds > > feature sections to ensure that we don't try to context-switch > > t

Re: [PATCH 07/13] KVM: PPC: Book3S HV: Adjust host/guest context switch for POWER9

2016-11-18 Thread Aneesh Kumar K.V
Paul Mackerras writes: > Some special-purpose registers that were present and accessible > by guests on POWER8 no longer exist on POWER9, so this adds > feature sections to ensure that we don't try to context-switch > them when going into or out of a guest on POWER9. These are > all relatively o

[PATCH 07/13] KVM: PPC: Book3S HV: Adjust host/guest context switch for POWER9

2016-11-17 Thread Paul Mackerras
Some special-purpose registers that were present and accessible by guests on POWER8 no longer exist on POWER9, so this adds feature sections to ensure that we don't try to context-switch them when going into or out of a guest on POWER9. These are all relatively obscure, rarely-used registers, but