On Thu, 3 Jun 2021 at 23:20, Sean Christopherson <seanjc@xxxxxxxxxx> wrote: > > On Thu, Jun 03, 2021, Wanpeng Li wrote: > > From: Wanpeng Li <wanpengli@xxxxxxxxxxx> > > > > According to the SDM 10.5.4.1: > > > > A write of 0 to the initial-count register effectively stops the local > > APIC timer, in both one-shot and periodic mode. > > > > The lapic timer oneshot/periodic mode which is emulated by vmx-preemption > > timer doesn't stop since vmx->hv_deadline_tsc is still set. > > But the VMX preemption timer is only used for deadline, never for oneshot or > periodic. Am I missing something? Yes, it is upstream. https://lore.kernel.org/kvm/1477304593-3453-1-git-send-email-wanpeng.li@xxxxxxxxxxx/ Wanpeng
