diff options
Diffstat (limited to 'hw/pci/pcie.c')
| -rw-r--r-- | hw/pci/pcie.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index d7d73a31e4..67a5d67372 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -366,6 +366,17 @@ static void hotplug_event_clear(PCIDevice *dev) } } +void pcie_cap_slot_enable_power(PCIDevice *dev) +{ + uint8_t *exp_cap = dev->config + dev->exp.exp_cap; + uint32_t sltcap = pci_get_long(exp_cap + PCI_EXP_SLTCAP); + + if (sltcap & PCI_EXP_SLTCAP_PCP) { + pci_set_word_by_mask(exp_cap + PCI_EXP_SLTCTL, + PCI_EXP_SLTCTL_PCC, PCI_EXP_SLTCTL_PWR_ON); + } +} + static void pcie_set_power_device(PCIBus *bus, PCIDevice *dev, void *opaque) { bool *power = opaque; @@ -446,6 +457,11 @@ void pcie_cap_slot_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, PCIDevice *pci_dev = PCI_DEVICE(dev); uint32_t lnkcap = pci_get_long(exp_cap + PCI_EXP_LNKCAP); + if (pci_is_vf(pci_dev)) { + /* Virtual function cannot be physically disconnected */ + return; + } + /* Don't send event when device is enabled during qemu machine creation: * it is present on boot, no hotplug event is necessary. We do send an * event when the device is disabled later. */ |