kvm: Add documentation comment for kvm_irqchip_in_kernel() Now we've cleared out the architecture-independent uses of kvm_irqchip_in_kernel(), we can add a doc comment describing what it means. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Avi Kivity <avi@redhat.com>