[PATCH v4 09/11] KVM: arm/arm64: vgic: Prevent userspace injection of a mapped interrupt

[Christoffer Dall]

On Fri, Aug 07, 2015 at 04:45:45PM +0100, Marc Zyngier wrote:
> Virtual interrupts mapped to a HW interrupt should only be triggered
> from inside the kernel. Otherwise, you could end up confusing the
> kernel (and the GIC's) state machine.
> 
> Rearrange the injection path so that kvm_vgic_inject_irq is
> used for non-mapped interrupts, and kvm_vgic_inject_mapped_irq is
> used for mapped interrupts. The latter should only be called from
> inside the kernel (timer, irqfd).
> 
> Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>

Reviewed-by: Christoffer Dall <christoffer.dall at linaro.org>