Re: [PATCH v2 0/6] KVM: x86: cleanup and speedup for APICv

Paolo Bonzini
2017-02-07T17:23:19Z

On 19/12/2016 17:17, Paolo Bonzini wrote:
> These are the fixed patches that now pass vmx.flat. The issue in
> "KVM: x86: do not scan IRR twice on APICv vmentry" was that,
> in v1 of the patches, kvm_cpu_get_interrupt did not scan IRR
> at all if it found PIR.ON=0. This is now fixed in patches 4 and 5.
>
> Another latent bug has to be fixed in patch 2. The patch also
> highlights the maze that check_nested_events has become. Fixing
> that is left for later.
>
> The patches are on top of the (non-APICv-related) KVM_REQ_EVENT
> patches from this morning. According to kvm-unit-tests, patch 6 speeds
> up self-IPIs (if not done through the accelerated self-IPI MSR) by 5-10%.
>
> Paolo

Ping?

Paolo