Useful for ACPI hotplug.
Signed-off-by: Michael S. Tsirkin <[email protected]>
---
hw/pci/pci.c | 17 +++++++++++++++++
include/hw/pci/pci.h | 3 +++
2 files changed, 20 insertions(+)
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 8680063..a4f7f8d 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -1679,6 +1679,23 @@ static PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num)
return NULL;
}
+void pci_for_each_bus(PCIBus *bus,
+ void (*fn)(PCIBus *bus, void *opaque),
+ void *opaque)
+{
+ PCIBus *sec;
+
+ if (!bus) {
+ return;
+ }
+
+ fn(bus, opaque);
+
+ QLIST_FOREACH(sec, &bus->child, sibling) {
+ pci_for_each_bus(sec, fn, opaque);
+ }
+}
+
PCIDevice *pci_find_device(PCIBus *bus, int bus_num, uint8_t devfn)
{
bus = pci_find_bus_nr(bus, bus_num);
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index 209dda4..a82c1c7 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -391,6 +391,9 @@ int pci_bus_num(PCIBus *s);
void pci_for_each_device(PCIBus *bus, int bus_num,
void (*fn)(PCIBus *bus, PCIDevice *d, void *opaque),
void *opaque);
+void pci_for_each_bus(PCIBus *bus,
+ void (*fn)(PCIBus *bus, void *opaque),
+ void *opaque);
PCIBus *pci_find_primary_bus(void);
PCIBus *pci_device_root_bus(const PCIDevice *d);
const char *pci_root_bus_path(PCIDevice *dev);
--
MST
