KVM: Refactor IRQ names of assigned devices

Cosmetic change, but it helps to correlate IRQs with PCI devices.

Acked-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c
index 1d77ce16360a..7623408dbc81 100644
--- a/virt/kvm/assigned-dev.c
+++ b/virt/kvm/assigned-dev.c
@@ -231,8 +231,7 @@ static int assigned_device_enable_host_intx(struct kvm *kvm,
          * are going to be long delays in accepting, acking, etc.
          */
         if (request_threaded_irq(dev->host_irq, NULL, kvm_assigned_dev_thread,
-                                 IRQF_ONESHOT, "kvm_assigned_intx_device",
-                                 (void *)dev))
+                                 IRQF_ONESHOT, dev->irq_name, (void *)dev))
                 return -EIO;
         return 0;
 }
@@ -251,7 +250,7 @@ static int assigned_device_enable_host_msi(struct kvm *kvm,
 
         dev->host_irq = dev->dev->irq;
         if (request_threaded_irq(dev->host_irq, NULL, kvm_assigned_dev_thread,
-                                 0, "kvm_assigned_msi_device", (void *)dev)) {
+                                 0, dev->irq_name, (void *)dev)) {
                 pci_disable_msi(dev->dev);
                 return -EIO;
         }
@@ -278,8 +277,7 @@ static int assigned_device_enable_host_msix(struct kvm *kvm,
         for (i = 0; i < dev->entries_nr; i++) {
                 r = request_threaded_irq(dev->host_msix_entries[i].vector,
                                          NULL, kvm_assigned_dev_thread,
-                                         0, "kvm_assigned_msix_device",
-                                         (void *)dev);
+                                         0, dev->irq_name, (void *)dev);
                 if (r)
                         goto err;
         }
@@ -336,6 +334,9 @@ static int assign_host_irq(struct kvm *kvm,
         if (dev->irq_requested_type & KVM_DEV_IRQ_HOST_MASK)
                 return r;
 
+        snprintf(dev->irq_name, sizeof(dev->irq_name), "kvm:%s",
+                 pci_name(dev->dev));
+
         switch (host_irq_type) {
         case KVM_DEV_IRQ_HOST_INTX:
                 r = assigned_device_enable_host_intx(kvm, dev);