diff options
Diffstat (limited to 'hw/pci/pcie.c')
| -rw-r--r-- | hw/pci/pcie.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index b22527000d..f8490a00de 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -594,7 +594,15 @@ void pcie_cap_slot_reset(PCIDevice *dev) hotplug_event_update_event_status(dev); } -void pcie_cap_slot_write_config(PCIDevice *dev, +void pcie_cap_slot_get(PCIDevice *dev, uint16_t *slt_ctl, uint16_t *slt_sta) +{ + uint32_t pos = dev->exp.exp_cap; + uint8_t *exp_cap = dev->config + pos; + *slt_ctl = pci_get_word(exp_cap + PCI_EXP_SLTCTL); + *slt_sta = pci_get_word(exp_cap + PCI_EXP_SLTSTA); +} + +void pcie_cap_slot_write_config(PCIDevice *dev, uint16_t slt_ctl, uint16_t slt_sta, uint32_t addr, uint32_t val, int len) { uint32_t pos = dev->exp.exp_cap; @@ -623,7 +631,9 @@ void pcie_cap_slot_write_config(PCIDevice *dev, * controller is off, it is safe to detach the devices. */ if ((sltsta & PCI_EXP_SLTSTA_PDS) && (val & PCI_EXP_SLTCTL_PCC) && - ((val & PCI_EXP_SLTCTL_PIC_OFF) == PCI_EXP_SLTCTL_PIC_OFF)) { + (val & PCI_EXP_SLTCTL_PIC_OFF) == PCI_EXP_SLTCTL_PIC_OFF && + (!(slt_ctl & PCI_EXP_SLTCTL_PCC) || + (slt_ctl & PCI_EXP_SLTCTL_PIC_OFF) != PCI_EXP_SLTCTL_PIC_OFF)) { PCIBus *sec_bus = pci_bridge_get_sec_bus(PCI_BRIDGE(dev)); pci_for_each_device(sec_bus, pci_bus_num(sec_bus), pcie_unplug_device, NULL); |