Re: [PATCH v2 0/6] KVM: nVMX: Enlightened VMCS for Hyper-V on KVM

Vitaly Kuznetsov
2018-07-23T11:34:10Z

Vitaly Kuznetsov <vkuznets@redhat.com> writes:

> Changes since v1 [Liran Alon]:
> - Split PATCH2 into two.
> - Add a comment explaining eVMCS versioning.
> - Convert evmcs_needs_write() to inline function.
> - Drop 'unlikely' in vmx_vcpu_run().
> - Add Reviewed-by tags.
>
> Description:
>
> This is an initial implementation of Enlightened VMCS for nested Hyper-V on
> KVM. Using it helps to spare 1500 cpu cycles for nested vmexit (tight cpuid
> loop in WS2016 with Hyper-V role on KVM: 15200 cycles -> 13700
> cycles).

It's been a month, ping :-)

--
Vitaly