Re: [PATCH] x86/kvm: Introduce boot parameter no-kvm-pvipi
From: Wanpeng Li <hidden>
Date: 2021-10-20 12:23:07
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On Wed, 20 Oct 2021 at 20:08, zhenwei pi [off-list ref] 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@mail.gmail.com/T/#u (local) Wanpeng