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
