Re: [PATCH 3/3] KVM: PPC: Book3S HV: Implement H_CLEAR_REF and H_CLEAR_MOD

2015-09-12 Thread Nathan Whitehorn 

On 09/06/15 16:52, Paul Mackerras wrote:

On Sun, Sep 06, 2015 at 12:47:12PM -0700, Nathan Whitehorn wrote:

Anything I can do to help move these along? It's a big performance
improvement for FreeBSD guests.

These patches are in Paolo's kvm-ppc-next branch and should go into
Linus' tree in the next couple of days.

Paul.



One additional question. What is your preferred way to enable these? 
Since these are part of the mandatory part of the PAPR spec, I think 
there's an argument to add them to the default_hcall_list? Otherwise, 
they should be enabled by default in QEMU (I can take care of sending 
that patch if you prefer this route).

-Nathan

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Re: [PATCH 3/3] KVM: PPC: Book3S HV: Implement H_CLEAR_REF and H_CLEAR_MOD

2015-09-12 Thread Nathan Whitehorn 

On 09/06/15 16:52, Paul Mackerras wrote:

On Sun, Sep 06, 2015 at 12:47:12PM -0700, Nathan Whitehorn wrote:

Anything I can do to help move these along? It's a big performance
improvement for FreeBSD guests.

These patches are in Paolo's kvm-ppc-next branch and should go into
Linus' tree in the next couple of days.

Paul.



One additional question. What is your preferred way to enable these? 
Since these are part of the mandatory part of the PAPR spec, I think 
there's an argument to add them to the default_hcall_list? Otherwise, 
they should be enabled by default in QEMU (I can take care of sending 
that patch if you prefer this route).

-Nathan

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Re: [PATCH 3/3] KVM: PPC: Book3S HV: Implement H_CLEAR_REF and H_CLEAR_MOD

2015-09-12 Thread Alexander Graf 


> Am 12.09.2015 um 18:47 schrieb Nathan Whitehorn :
> 
>> On 09/06/15 16:52, Paul Mackerras wrote:
>>> On Sun, Sep 06, 2015 at 12:47:12PM -0700, Nathan Whitehorn wrote:
>>> Anything I can do to help move these along? It's a big performance
>>> improvement for FreeBSD guests.
>> These patches are in Paolo's kvm-ppc-next branch and should go into
>> Linus' tree in the next couple of days.
>> 
>> Paul.
> 
> One additional question. What is your preferred way to enable these? Since 
> these are part of the mandatory part of the PAPR spec, I think there's an 
> argument to add them to the default_hcall_list? Otherwise, they should be 
> enabled by default in QEMU (I can take care of sending that patch if you 
> prefer this route).

The default hcall list just describes which hcalls were implicitly enabled at 
the point in time we made them enableable by user space. IMHO no new hcalls 
should get added there.

So yes, please send a patch to qemu :).


Alex

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Re: [PATCH 3/3] KVM: PPC: Book3S HV: Implement H_CLEAR_REF and H_CLEAR_MOD

2015-09-12 Thread Alexander Graf 


> Am 12.09.2015 um 18:47 schrieb Nathan Whitehorn :
> 
>> On 09/06/15 16:52, Paul Mackerras wrote:
>>> On Sun, Sep 06, 2015 at 12:47:12PM -0700, Nathan Whitehorn wrote:
>>> Anything I can do to help move these along? It's a big performance
>>> improvement for FreeBSD guests.
>> These patches are in Paolo's kvm-ppc-next branch and should go into
>> Linus' tree in the next couple of days.
>> 
>> Paul.
> 
> One additional question. What is your preferred way to enable these? Since 
> these are part of the mandatory part of the PAPR spec, I think there's an 
> argument to add them to the default_hcall_list? Otherwise, they should be 
> enabled by default in QEMU (I can take care of sending that patch if you 
> prefer this route).

The default hcall list just describes which hcalls were implicitly enabled at 
the point in time we made them enableable by user space. IMHO no new hcalls 
should get added there.

So yes, please send a patch to qemu :).


Alex

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