On Mon, 2022-08-08 at 14:06 -0500, Coleman Dietsch wrote: > Stop Xen timer (if it's running) prior to changing the IRQ vector and > potentially (re)starting the timer. Changing the IRQ vector while the > timer is still running can result in KVM injecting a garbage event, e.g. > vm_xen_inject_timer_irqs() could see a non-zero xen.timer_pending from > a previous timer but inject the new xen.timer_virq. Hm, wasn't that already addressed in the first patch I saw, which just called kvm_xen_stop_timer() unconditionally before (possibly) setting it up again?
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