Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull more KVM updates from Paolo Bonzini:
 - ARM bugfix and MSI injection support
 - x86 nested virt tweak and OOPS fix
 - Simplify pvclock code (vdso bits acked by Andy Lutomirski).

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  nvmx: mark ept single context invalidation as supported
  nvmx: remove comment about missing nested vpid support
  KVM: lapic: fix access preemption timer stuff even if kernel_irqchip=off
  KVM: documentation: fix KVM_CAP_X2APIC_API information
  x86: vdso: use __pvclock_read_cycles
  pvclock: introduce seqcount-like API
  arm64: KVM: Set cpsr before spsr on fault injection
  KVM: arm: vgic-irqfd: Workaround changing kvm_set_routing_entry prototype
  KVM: arm/arm64: Enable MSI routing
  KVM: arm/arm64: Enable irqchip routing
  KVM: Move kvm_setup_default/empty_irq_routing declaration in arch specific header
  KVM: irqchip: Convey devid to kvm_set_msi
  KVM: Add devid in kvm_kernel_irq_routing_entry
  KVM: api: Pass the devid in the msi routing entry

1 files changed, 18 insertions, 10 deletions

diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c
index df99e9c3b64d..3bcc9990adf7 100644
--- a/virt/kvm/irqchip.c
+++ b/virt/kvm/irqchip.c
@@ -62,12 +62,14 @@ int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi)
 {
 	struct kvm_kernel_irq_routing_entry route;
 
-	if (!irqchip_in_kernel(kvm) || msi->flags != 0)
+	if (!irqchip_in_kernel(kvm) || (msi->flags & ~KVM_MSI_VALID_DEVID))
 		return -EINVAL;
 
 	route.msi.address_lo = msi->address_lo;
 	route.msi.address_hi = msi->address_hi;
 	route.msi.data = msi->data;
+	route.msi.flags = msi->flags;
+	route.msi.devid = msi->devid;
 
 	return kvm_set_msi(&route, kvm, KVM_USERSPACE_IRQ_SOURCE_ID, 1, false);
 }
@@ -177,6 +179,7 @@ int kvm_set_irq_routing(struct kvm *kvm,
 			unsigned flags)
 {
 	struct kvm_irq_routing_table *new, *old;
+	struct kvm_kernel_irq_routing_entry *e;
 	u32 i, j, nr_rt_entries = 0;
 	int r;
 
@@ -200,23 +203,25 @@ int kvm_set_irq_routing(struct kvm *kvm,
 			new->chip[i][j] = -1;
 
 	for (i = 0; i < nr; ++i) {
-		struct kvm_kernel_irq_routing_entry *e;
-
 		r = -ENOMEM;
 		e = kzalloc(sizeof(*e), GFP_KERNEL);
 		if (!e)
 			goto out;
 
 		r = -EINVAL;
-		if (ue->flags) {
-			kfree(e);
-			goto out;
+		switch (ue->type) {
+		case KVM_IRQ_ROUTING_MSI:
+			if (ue->flags & ~KVM_MSI_VALID_DEVID)
+				goto free_entry;
+			break;
+		default:
+			if (ue->flags)
+				goto free_entry;
+			break;
 		}
 		r = setup_routing_entry(kvm, new, e, ue);
-		if (r) {
-			kfree(e);
-			goto out;
-		}
+		if (r)
+			goto free_entry;
 		++ue;
 	}
 
@@ -233,7 +238,10 @@ int kvm_set_irq_routing(struct kvm *kvm,
 
 	new = old;
 	r = 0;
+	goto out;
 
+free_entry:
+	kfree(e);
 out:
 	free_irq_routing_table(new);