diff options
Diffstat (limited to 'hw/pci/pcie.c')
| -rw-r--r-- | hw/pci/pcie.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index a72d516e4f..32c65c27a4 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -249,16 +249,16 @@ void pcie_cap_slot_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, return; } - /* TODO: multifunction hot-plug. - * Right now, only a device of function = 0 is allowed to be - * hot plugged/unplugged. + /* To enable multifunction hot-plug, we just ensure the function + * 0 added last. When function 0 is added, we set the sltsta and + * inform OS via event notification. */ - assert(PCI_FUNC(pci_dev->devfn) == 0); - - pci_word_test_and_set_mask(exp_cap + PCI_EXP_SLTSTA, - PCI_EXP_SLTSTA_PDS); - pcie_cap_slot_event(PCI_DEVICE(hotplug_dev), - PCI_EXP_HP_EV_PDC | PCI_EXP_HP_EV_ABP); + if (pci_get_function_0(pci_dev)) { + pci_word_test_and_set_mask(exp_cap + PCI_EXP_SLTSTA, + PCI_EXP_SLTSTA_PDS); + pcie_cap_slot_event(PCI_DEVICE(hotplug_dev), + PCI_EXP_HP_EV_PDC | PCI_EXP_HP_EV_ABP); + } } static void pcie_unplug_device(PCIBus *bus, PCIDevice *dev, void *opaque) |