Re: [PATCH] Move VMEnter and VMExit tracepoints closer to the actual event

From: Dario Faggioli
Date: Fri May 21 2021 - 03:58:32 EST


On Thu, 2021-05-20 at 18:18 +0200, Paolo Bonzini wrote:
> On 20/05/21 17:32, Sean Christopherson wrote:
> > On VMX, I think the tracepoint can be moved below the VMWRITEs
> > without much
> > contention (though doing so is likely a nop), but moving it below
> > kvm_load_guest_xsave_state() requires a bit more discussion.
> Indeed; as a rule of thumb, the tracepoint on SVM could match the
> clgi/stgi region, and on VMX it could be placed in a similar
> location.
Ok. So, if this is uncontroversial enough, we're more than happy to go
for it... For now. :-)

Let us try it, and see how things end up looking.

Thanks and Regards
Dario Faggioli, Ph.D
Virtualization Software Engineer
<<This happens because _I_ choose it to happen!>> (Raistlin Majere)

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