Re: [Xen-devel] [PATCH 2/2] x86: use invpcid to do global flushing

[Juergen Gross <jgross@xxxxxxxx>]

On 13/03/18 10:35, Jan Beulich wrote:
>>>> On 13.03.18 at 10:27, <jgross@xxxxxxxx> wrote:
>> On 13/03/18 09:07, Jan Beulich wrote:
>>>>>> On 12.03.18 at 14:10, <jgross@xxxxxxxx> wrote:
>>>> BTW: are you already working on rebasing your XPTI speed up series to
>>>> current staging? I'd like my series to use your series as a base unless
>>>> you are telling me you won't be able to resend your series soon.
>>>
>>> Coming back to my reply here yesterday - then again I'm a little
>>> reluctant to send out a new version that has no changes other
>>> than being re-based, when there were no comments by Andrew
>>> on most of the remaining patches yet (and in the one case
>>> where there were comments, I'm afraid I continue to disagree,
>>> but I'll see about moving that patch last in the series).
>>
>> In order to move forward, would you prefer me to base my patches on
>> current staging and put your patches on top of my series later? I just
>> don't want to rebase my series on a moving target...
> 
> Well, I'm similarly not intending to re-base onto a series still under
> development / review. That's really the bad thing with deadlines:
> If we didn't freeze the tree at a given time, but at the point where
> previously agreed features and other non-bug-fix changes have
> landed, we wouldn't have such an ordering problem right now (or
> to be precise the ordering issue would still be there, but neither
> of us would be at risk of their changes not making it).

Understandable.

Could you then please repost at least patch 3? It has been approved
by Andrew and just needs the formal R-b: after rebasing.

Andrew, do you think you can find some time commenting on Jan's
other patches of his Meltdown series?

Speaking with my release manager hat on I'd _really_ like to have all
Meltdown/Spectre related patches minimizing the performance penalties
in 4.11.


Juergen

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