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pcihp: add ACPI PCI hotplug specific is_hotpluggable_bus() callback

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Provide pcihp specific callback to check if bus is hotpluggable
and consolidate its scattered hotplug criteria there.
While at it clean up no longer needed
   qbus_set_hotplug_handler(BUS(bus), NULL)
workarounds since callback makes qbus_is_hotpluggable() return
correct answer even if hotplug_handler is set on bus.

PS:
see ("pci: fix 'hotplugglable' property behavior") for details
why callback was introduced.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20230302161543.286002-35-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2023-03-02 17:15:43 +01:00 • committed by Michael S. Tsirkin
parent 6536e427ce
commit f18e29fc90
7 changed files with 39 additions and 24 deletions
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1
include/hw/acpi/ich9.h
View file

@ -87,6 +87,7 @@ void ich9_pm_device_unplug_request_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp);
void ich9_pm_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp);
bool ich9_pm_is_hotpluggable_bus(HotplugHandler *hotplug_dev, BusState *bus);
void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list);
#endif /* HW_ACPI_ICH9_H */

1
include/hw/acpi/pcihp.h
View file

@ -58,6 +58,7 @@ typedef struct AcpiPciHpState {
void acpi_pcihp_init(Object *owner, AcpiPciHpState *, PCIBus *root,
MemoryRegion *address_space_io, uint16_t io_base);
bool acpi_pcihp_is_hotpluggbale_bus(AcpiPciHpState *s, BusState *bus);
void acpi_pcihp_device_pre_plug_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp);
void acpi_pcihp_device_plug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s,