On Thu, Mar 20, 2025 at 7:31 AM Sean Christopherson <seanjc@xxxxxxxxxx> wrote: > > Add a module param to allow disabling device posted interrupts without > having to sacrifice all of APICv/AVIC, and to also effectively enumerate > to userspace whether or not KVM may be utilizing device posted IRQs. > Disabling device posted interrupts is very desirable for testing, and can > even be desirable for production environments, e.g. if the host kernel > wants to interpose on device interrupts. Are you referring to CONFIG_X86_POSTED_MSI, or something else that doesn't exist yet?