Re: [PATCH] x86/kvm: Introduce boot parameter no-kvm-pvipi

[Wanpeng Li]

On Wed, 20 Oct 2021 at 20:08, zhenwei pi <pizhenwei@xxxxxxxxxxxxx> wrote:
>
> Although host side exposes KVM PV SEND IPI feature to guest side,
> guest should still have a chance to disable it.
>
> A typicall case of this parameter:
> If the host AMD server enables AVIC feature, the flat mode of APIC
> get better performance in the guest.

Hmm, I didn't find enough valuable information in your posting. We
observe AMD a lot before.
https://lore.kernel.org/all/CANRm+Cx597FNRUCyVz1D=B6Vs2GX3Sw57X7Muk+yMpi_hb+v1w@xxxxxxxxxxxxxx/T/#u

    Wanpeng