Messages in this thread | | | Subject | Re: [PATCH v2] X86/VMX: Disable VMX preemption timer if MWAIT is not intercepted | From | Paolo Bonzini <> | Date | Tue, 10 Apr 2018 13:07:05 +0200 |
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On 10/04/2018 12:08, KarimAllah Ahmed wrote: > @@ -11908,6 +11908,9 @@ static int vmx_set_hv_timer(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc) > u64 guest_tscl = kvm_read_l1_tsc(vcpu, tscl); > u64 delta_tsc = max(guest_deadline_tsc, guest_tscl) - guest_tscl; > > + if (kvm_pause_in_guest(vcpu->kvm)) > + return -EOPNOTSUPP; > +
This is still doing a relatively expensive kvm_read_l1_tsc, so move it even further up. :)
Paolo
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