[v1][KVM][PATCH 1/1] kvm:ppc:booehv: direct ISI exception to Guest

[Scott Wood]

On 05/07/2013 08:53:50 PM, tiejun.chen wrote:
> On 05/08/2013 07:40 AM, Scott Wood wrote:
>> On 05/07/2013 06:06:30 AM, Tiejun Chen wrote:
>>> We also can direct ISI exception to Guest like DSI.
>>> 
>>> Signed-off-by: Tiejun Chen <tiejun.chen at windriver.com>
>>> ---
>>>  arch/powerpc/kvm/booke_emulate.c |    3 +++
>>>  arch/powerpc/kvm/e500mc.c        |    3 ++-
>>>  2 files changed, 5 insertions(+), 1 deletion(-)
>> 
>> Are you seeing a real performance improvement from this?  This will  
>> interfere
> 
> No. But after we reduce the exit to host, shouldn't this improve  
> performance?

Not if ISIs are too rare to matter.

-Scott