On 2015/12/7 21:56, Marc Zyngier wrote:
+static int kvm_arm_pmu_set_attr(struct kvm_device *dev, >+ struct kvm_device_attr *attr) >+{ >+ switch (attr->group) { >+ case KVM_DEV_ARM_PMU_GRP_IRQ: { >+ int __user *uaddr = (int __user *)(long)attr->addr; >+ int reg; >+ >+ if (get_user(reg, uaddr)) >+ return -EFAULT; >+ >+ if (reg < VGIC_NR_SGIS || reg >= VGIC_NR_PRIVATE_IRQS) >+ return -EINVAL; >+ >+ return kvm_arm_pmu_set_irq(dev->kvm, reg);What prevents the IRQ to be changed while the VM is already running? This should probably be a one-shot thing (change it once, be denied other changes).
So add a helper like vgic_initialized to check whether vPMU is initialized? Thanks, -- Shannon -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
