On Mon, 24 Aug 2020 at 09:03, Wanpeng Li wrote:
>
> From: Wanpeng Li
>
> The kick after setting KVM_REQ_PENDING_TIMER is used to handle the timer
> fires on a different pCPU which vCPU is running on, this kick is expensive
> since memory barrier, rcu, preemption disable/enable operations. We
From: Wanpeng Li
The kick after setting KVM_REQ_PENDING_TIMER is used to handle the timer
fires on a different pCPU which vCPU is running on, this kick is expensive
since memory barrier, rcu, preemption disable/enable operations. We don't
need this kick when injecting already-expired timer,
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