Messages in this thread | | | From | Wanpeng Li <> | Date | Tue, 19 Nov 2019 19:36:19 +0800 | Subject | Re: [PATCH v2 2/3] KVM: VMX: Do not change PID.NDST when loading a blocked vCPU |
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On Tue, 12 Nov 2019 at 01:23, Joao Martins <joao.m.martins@oracle.com> wrote: > > While vCPU is blocked (in kvm_vcpu_block()), it may be preempted which > will cause vmx_vcpu_pi_put() to set PID.SN. If later the vCPU will be
How can this happen? See the prepare_to_swait_exlusive() in kvm_vcpu_block(), the task will be set in TASK_INTERRUPTIBLE state, kvm_sched_out will set vcpu->preempted to true iff current->state == TASK_RUNNING.
Wanpeng
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