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: Avi Kivity <avi@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/hw/msix.c b/hw/msix.c
index 0d400793e..227f482e4 100644
--- a/hw/msix.c
+++ b/hw/msix.c
@@ -428,6 +428,7 @@ 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);
 }