Re: [PATCH 0/6] KVM: PPC: Book3S PR: Add POWER8 support

["Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>]

Alexander Graf <agraf@suse.de> writes:

> On 05/04/2014 06:36 PM, Aneesh Kumar K.V wrote:
>> Alexander Graf <agraf@suse.de> writes:
>>
>>> When running on a POWER8 host, we get away with running the guest as POWER7
>>> and nothing falls apart.
>>>
>>> However, when we start exposing POWER8 as guest CPU, guests will start using
>>> new abilities on POWER8 which we need to handle.
>>>
>>> This patch set does a minimalistic approach to implementing those bits to
>>> make guests happy enough to run.
>>>
>>>
>>> Alex
>>>
>>> Alexander Graf (6):
>>>    KVM: PPC: Book3S PR: Ignore PMU SPRs
>>>    KVM: PPC: Book3S PR: Emulate TIR register
>>>    KVM: PPC: Book3S PR: Handle Facility interrupt and FSCR
>>>    KVM: PPC: Book3S PR: Expose TAR facility to guest
>>>    KVM: PPC: Book3S PR: Expose EBB registers
>>>    KVM: PPC: Book3S PR: Expose TM registers
>>>
>>>   arch/powerpc/include/asm/kvm_asm.h        | 18 ++++---
>>>   arch/powerpc/include/asm/kvm_book3s_asm.h |  2 +
>>>   arch/powerpc/include/asm/kvm_host.h       |  3 ++
>>>   arch/powerpc/kernel/asm-offsets.c         |  3 ++
>>>   arch/powerpc/kvm/book3s.c                 | 34 +++++++++++++
>>>   arch/powerpc/kvm/book3s_emulate.c         | 53 ++++++++++++++++++++
>>>   arch/powerpc/kvm/book3s_hv.c              | 30 -----------
>>>   arch/powerpc/kvm/book3s_pr.c              | 82 +++++++++++++++++++++++++++++++
>>>   arch/powerpc/kvm/book3s_segment.S         | 25 ++++++++++
>>>   9 files changed, 212 insertions(+), 38 deletions(-)
>>>
>> I did most of this as part of
>>
>> [RFC PATCH 01/10] KVM: PPC: BOOK3S: PR: Add POWER8 support
>> http://mid.gmane.org/1390927455-3312-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com
>>
>> Any reason why that is not picked up ? TM was the reason I didn't push the
>> patchset again. I was not sure how to get all the TM details to
>> work.
>
> Ugh, I guess I mostly discarded it as brainstorm patches because they 
> were marked RFC :(
>

Do you want me to rework them ?. I guess facility unavailable part and
TM part in this series are better than what I had. Rest all are more or
less similar. Or you could cherry pick the SPR handling you haven't
added yet from this series ?

-aneesh