[Qemu-devel] [RFC PATCH] pci: deassert intx when pci device unrealize

["Herongguang (Stephen)" <herongguang.he@huawei.com>]

If a pci device is not reset by VM (by writing into config space)
and unplugged by VM, after that when VM reboots, qemu may assert:
pcibus_reset: Assertion `bus->irq_count[i] == 0' failed

Signed-off-by: herongguang <herongguang.he@huawei.com>
---

Is there need to call pci_do_device_reset()?

---
  hw/pci/pci.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 259483b..afe6397 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -1078,6 +1078,7 @@ static void pci_qdev_unrealize(DeviceState *dev, Error **errp)

      pci_unregister_io_regions(pci_dev);
      pci_del_option_rom(pci_dev);
+    pci_device_deassert_intx(pci_dev);

      if (pc->exit) {
          pc->exit(pci_dev);
--
1.7.12.4