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-rw-r--r--hw/pci/pcie.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c
index 6e28985..a72d516 100644
--- a/hw/pci/pcie.c
+++ b/hw/pci/pcie.c
@@ -261,13 +261,31 @@ void pcie_cap_slot_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
PCI_EXP_HP_EV_PDC | PCI_EXP_HP_EV_ABP);
}
+static void pcie_unplug_device(PCIBus *bus, PCIDevice *dev, void *opaque)
+{
+ object_unparent(OBJECT(dev));
+}
+
void pcie_cap_slot_hot_unplug_request_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
uint8_t *exp_cap;
+ PCIDevice *pci_dev = PCI_DEVICE(dev);
+ PCIBus *bus = pci_dev->bus;
pcie_cap_slot_hotplug_common(PCI_DEVICE(hotplug_dev), dev, &exp_cap, errp);
+ /* In case user cancel the operation of multi-function hot-add,
+ * remove the function that is unexposed to guest individually,
+ * without interaction with guest.
+ */
+ if (pci_dev->devfn &&
+ !bus->devices[0]) {
+ pcie_unplug_device(bus, pci_dev, NULL);
+
+ return;
+ }
+
pcie_cap_slot_push_attention_button(PCI_DEVICE(hotplug_dev));
}
@@ -378,11 +396,6 @@ void pcie_cap_slot_reset(PCIDevice *dev)
hotplug_event_update_event_status(dev);
}
-static void pcie_unplug_device(PCIBus *bus, PCIDevice *dev, void *opaque)
-{
- object_unparent(OBJECT(dev));
-}
-
void pcie_cap_slot_write_config(PCIDevice *dev,
uint32_t addr, uint32_t val, int len)
{