Re: [PATCH 20/29] KVM: x86: add planes support for interrupt delivery
From: Sean Christopherson
Date: Fri Jun 06 2025 - 12:30:51 EST
On Tue, Apr 01, 2025, Paolo Bonzini wrote:
> Plumb the destination plane into struct kvm_lapic_irq and propagate it
> everywhere. The in-kernel IOAPIC only targets plane 0.
Can we get more aggressive and make KVM_CREATE_IRQCHIP mutually exclusive with
planes? AIUI, literally every use case for planes is for folks that run split
IRQ chips.
And we should require an in-kernel local APIC to create a plane.