diff options
| author | Alex Williamson <alex.williamson@redhat.com> | 2013-03-14 16:01:29 -0600 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2013-03-26 21:02:18 +0200 |
| commit | 0889464a5050c25611d08ca33d8447796c88c7f7 (patch) | |
| tree | 13747521c0ea4664f51a6f7b50ce308fa0900f0c /hw/pci | |
| parent | 8c0bf9e24242c89c1abbd708c714dd2a89febbd2 (diff) | |
pci: Create and use API to determine root buses
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/pci')
| -rw-r--r-- | hw/pci/pci.c | 13 | ||||
| -rw-r--r-- | hw/pci/pci.h | 1 |
2 files changed, 10 insertions, 4 deletions
diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 7f28101cb4..d5257ed4c5 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -302,6 +302,11 @@ bool pci_bus_is_express(PCIBus *bus) return object_dynamic_cast(OBJECT(bus), TYPE_PCIE_BUS); } +bool pci_bus_is_root(PCIBus *bus) +{ + return !bus->parent_dev; +} + void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent, const char *name, MemoryRegion *address_space_mem, @@ -360,7 +365,7 @@ PCIBus *pci_register_bus(DeviceState *parent, const char *name, int pci_bus_num(PCIBus *s) { - if (!s->parent_dev) + if (pci_bus_is_root(s)) return 0; /* pci host bridge */ return s->parent_dev->config[PCI_SECONDARY_BUS]; } @@ -1186,7 +1191,7 @@ static void pci_set_irq(void *opaque, int irq_num, int level) /* Special hooks used by device assignment */ void pci_bus_set_route_irq_fn(PCIBus *bus, pci_route_irq_fn route_intx_to_irq) { - assert(!bus->parent_dev); + assert(pci_bus_is_root(bus)); bus->route_intx_to_irq = route_intx_to_irq; } @@ -1651,7 +1656,7 @@ static PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num) } /* Consider all bus numbers in range for the host pci bridge. */ - if (bus->parent_dev && + if (!pci_bus_is_root(bus) && !pci_secondary_bus_in_range(bus->parent_dev, bus_num)) { return NULL; } @@ -1659,7 +1664,7 @@ static PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num) /* try child bus */ for (; bus; bus = sec) { QLIST_FOREACH(sec, &bus->child, sibling) { - assert(sec->parent_dev); + assert(!pci_bus_is_root(sec)); if (sec->parent_dev->config[PCI_SECONDARY_BUS] == bus_num) { return sec; } diff --git a/hw/pci/pci.h b/hw/pci/pci.h index d715e6f09d..774369cd9e 100644 --- a/hw/pci/pci.h +++ b/hw/pci/pci.h @@ -345,6 +345,7 @@ typedef int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev, #define TYPE_PCIE_BUS "PCIE" bool pci_bus_is_express(PCIBus *bus); +bool pci_bus_is_root(PCIBus *bus); void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent, const char *name, MemoryRegion *address_space_mem, |