On 04/03/20 08:41, Liu, Jing2 wrote:
>> trace_kvm_entry(vcpu->vcpu_id);
>> guest_enter_irqoff();
>> - /* The preempt notifier should have taken care of the FPU
>> already. */
>> - WARN_ON_ONCE(test_thread_flag(TIF_NEED_FPU_LOAD));
>> + fpregs_assert_state_consistent();
>> + if (test_thread_flag(TIF_NEED_FPU_LOAD))
>> + switch_fpu_return();
>> if (unlikely(vcpu->arch.switch_db_regs)) {
>> set_debugreg(0, 7);
>
> Can kvm be preempt out again after this (before really enter to guest)?
No, irqs are disabled here.
Paolo
