Re: [Xen-devel] GPU passthrough performance regression in >4GB vms due to XSA-60 changes

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 19.05.14 at 14:17, <tomasz.wroblewski@xxxxxxxxx> wrote:
> On 05/19/2014 02:06 PM, Jan Beulich wrote:
>>>>> On 19.05.14 at 13:32, <tomasz.wroblewski@xxxxxxxxx> wrote:
>>> Yeah I gave about a day of effort to port us onto unstable and test
>>> there but it sadly looks to be a bigger job, so leaving that as a last
>>> resort (though planning to spend couple more days on it soon).
>> Then as an alternative did you try pulling over the EPT changes
>> from -unstable?
> That would be indeed preferable, I've looked over them but couldn't 
> figure out which particular change would fix the EPT update after MTRR 
> enable. Do you remember which that was? I could test it and try to 
> narrow any other commits it'd require (seems there were a lot of ept 
> related changes)

I used plural for a reason - I'm afraid you would need to start out with
taking them all, and then possibly determine which ones to drop as
being unrelated to the issue at hand.

Jan


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