On 09/06/21 04:15, Wanpeng Li wrote:
On Wed, 9 Jun 2021 at 00:27, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
[...]
Perhaps instead set TMCCT to 0 in kvm_apic_set_state, instead of keeping
the value that was filled in by KVM_GET_LAPIC?
Keeping the value that was filled in by KVM_GET_LAPIC is introduced by
commit 24647e0a39b6 (KVM: x86: Return updated timer current count
register from KVM_GET_LAPIC), could you elaborate more? :)
KVM_GET_LAPIC stores the current value of TMCCT and KVM_SET_LAPIC's
memcpy stores it in vcpu->arch.apic->regs. KVM_SET_LAPIC perhaps could
store zero in vcpu->arch.apic->regs after it uses it, and then the
stored value would always be zero.
Paolo
