virpci: Drop 'pci-stub' driver

Now that no one uses KVM style of PCI assignment we can safely
remove 'pci-stub' backend.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>
Reviewed-by: NDaniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: NDaniel Henrique Barboza <danielhb413@gmail.com>

src/util/virpci.c

@@ -54,7 +54,6 @@ VIR_ENUM_IMPL(virPCIStubDriver,
               VIR_PCI_STUB_DRIVER_LAST,
               "none",
               "pciback", /* XEN */
-              "pci-stub", /* KVM */
               "vfio-pci", /* VFIO */
 );
 
@@ -1541,16 +1540,6 @@ virPCIDeviceReattach(virPCIDevicePtr dev,
         return -1;
     }
 
-    /* Wait for device cleanup if it is qemu/kvm */
-    if (virPCIDeviceGetStubDriver(dev) == VIR_PCI_STUB_DRIVER_KVM) {
-        int retries = 100;
-        while (virPCIDeviceWaitForCleanup(dev, "kvm_assigned_device")
-               && retries) {
-            usleep(100*1000);
-            retries--;
-        }
-    }
-
     if (virPCIDeviceUnbindFromStub(dev) < 0)
         return -1;
 

src/util/virpci.h

@@ -59,7 +59,6 @@ struct _virPCIDeviceAddress {
 typedef enum {
     VIR_PCI_STUB_DRIVER_NONE = 0,
     VIR_PCI_STUB_DRIVER_XEN,
-    VIR_PCI_STUB_DRIVER_KVM,
     VIR_PCI_STUB_DRIVER_VFIO,
     VIR_PCI_STUB_DRIVER_LAST
 } virPCIStubDriver;