Re: [PATCH] kvm/x86: check KVM_REQ_TLB_FLUSH with irqs disabled

[Avi Kivity]

Marcelo Tosatti wrote:
> BTW, I've wondered if the local_irq_enable in svm_vcpu_run is safe:
>
>         clgi();
>
>         local_irq_enable();
>
> There is no way that an interrupt can be handled there without an exit, 
> right?
>   

clgi trumps sti, so all interrupts will be deferred until the guest is 
entered (which will cause an immediate vmexit).

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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