KVM: arm: vgic: Drop useless Group0 warning

If a GICv3-enabled guest tries to configure Group0, we print a
warning on the console (because we don't support Group0 interrupts).

This is fairly pointless, and would allow a guest to spam the
console. Let's just drop the warning.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

virt/kvm/arm/vgic-v3-emul.c

@@ -76,8 +76,6 @@ static bool handle_mmio_ctlr(struct kvm_vcpu *vcpu,
 	vgic_reg_access(mmio, &reg, offset,
 			ACCESS_READ_VALUE | ACCESS_WRITE_VALUE);
 	if (mmio->is_write) {
-		if (reg & GICD_CTLR_ENABLE_SS_G0)
-			kvm_info("guest tried to enable unsupported Group0 interrupts\n");
 		vcpu->kvm->arch.vgic.enabled = !!(reg & GICD_CTLR_ENABLE_SS_G1);
 		vgic_update_state(vcpu->kvm);
 		return true;