[vfio-users] Intel x2APIC and APIC Virtualization (APICv or vAPIC)

[Zycorax Tokoroa]

I'd say that at least some consumer product support apicv, as it happens 
with PCIe ACS probably. My i7-5930K reports it HAS support for it, and 
it is enabled by default.

Zycorax Tokoroa


>
> cat /sys/module/kvm_intel/parameters/enable_apicv
>
> Should its possible to determine that consumer platforms doesn't
> supports APICv at all, I suppose that you may want to add again hv-vapic
> for your Windows VMs if your removed it thinking that your platform
> supports APICv. I suppose that the performance scale for VMs goes like
> this: Emulated x2APIC -> HyperV hv-vapic (For Windows VMs) -> Intel
> APICv (On Intel enterprise platforms).
>