[PATCH] pci-assign: Fix transition MSI->INTx

[Jan Kiszka <jan.kiszka@web.de>]

From: Jan Kiszka <jan.kiszka@siemens.com>

Make sure to re-register the IRQ of an assigned device as INTx when the
guest disables MSI[X] mode again.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 hw/device-assignment.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/hw/device-assignment.c b/hw/device-assignment.c
index f6410f8..fce7567 100644
--- a/hw/device-assignment.c
+++ b/hw/device-assignment.c
@@ -1192,7 +1192,10 @@ static void assigned_dev_update_msi(PCIDevice *pci_dev, unsigned int ctrl_pos)
         if (kvm_assign_irq(kvm_context, &assigned_irq_data) < 0)
             perror("assigned_dev_enable_msi: assign irq");
 
+        assigned_dev->girq = -1;
         assigned_dev->irq_requested_type = assigned_irq_data.flags;
+    } else {
+        assign_irq(assigned_dev);
     }
 }
 #endif
@@ -1332,7 +1335,10 @@ static void assigned_dev_update_msix(PCIDevice *pci_dev, unsigned int ctrl_pos)
             perror("assigned_dev_enable_msix: assign irq");
             return;
         }
+        assigned_dev->girq = -1;
         assigned_dev->irq_requested_type = assigned_irq_data.flags;
+    } else {
+        assign_irq(assigned_dev);
     }
 }
 #endif
-- 
1.7.1