qemu/msi: clean used vectors state on load

Clean up msix vector usage state on load. Since guest might have control
over it through the device, the device will have to load this state from
file.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

diff --git a/hw/msix.c b/hw/msix.c
index e1308572ef95d191cbbc9d2604a426de262133f9..47e014017c67e27c83ca1ea564ecb8bdab9a9767 100644 (file)
--- a/hw/msix.c
+++ b/hw/msix.c
@@ -302,6 +302,7 @@ void msix_load(PCIDevice *dev, QEMUFile *f)
         return;
     }
 
+    msix_free_irq_entries(dev);
     qemu_get_buffer(f, dev->msix_table_page, n * MSIX_ENTRY_SIZE);
     qemu_get_buffer(f, dev->msix_table_page + MSIX_PAGE_PENDING, (n + 7) / 8);
 }