> Subject: Re: [PATCHv3 1/1] locking/qspinlock/x86: Avoid test-and-set when PV_DEDICATED is set > > On Thu, Nov 09, 2017 at 05:05:36PM +0100, Radim Krcmar wrote: > > 2017-11-09 10:53-0500, Pankaj Gupta: > > > 2] PV TLB should also behave as per option PV_DEDICATED for better > > > performance. > > > > Right, > > Shouldn't KVM do flush_tlb_other() in any case? Not sure how > PV_DEDICATED can help with that. Yes. If I understand it correctly, It will just avoid traversing all the cpus another time just to check/set 'KVM_VCPU_PREEMPTED'/FLUSH value and clear the cpu mask. Thanks, Pankaj
