Re: [PATCH 1/2] KVM: lapic: fix preemption timer backward when TSC backward

2016-09-02 Thread Paolo Bonzini
On 30/08/2016 10:14, Wanpeng Li wrote: > From: Wanpeng Li > > TSC_OFFSET will be adjusted if discovers TSC backward during vCPU load. > The preemption timer which will leverage guest tsc to reprogram its > preemption timer value is also reprogrammed if vCPU is scheded in to > a different pCP

[PATCH 1/2] KVM: lapic: fix preemption timer backward when TSC backward

2016-08-30 Thread Wanpeng Li
From: Wanpeng Li TSC_OFFSET will be adjusted if discovers TSC backward during vCPU load. The preemption timer which will leverage guest tsc to reprogram its preemption timer value is also reprogrammed if vCPU is scheded in to a different pCPU. However, current implementation reprogram preempti