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pci: add creation functions that may fail 

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2011-02-05 14:34:32 +00:00
parent 0bcdeda7e4
commit 7cc050b165
2 changed files with 24 additions and 0 deletions
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20
hw/pci.c
View File

@ -1708,6 +1708,21 @@ PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction,
return DO_UPCAST(PCIDevice, qdev, dev);
}
PCIDevice *pci_try_create_multifunction(PCIBus *bus, int devfn,
bool multifunction,
const char *name)
{
DeviceState *dev;
dev = qdev_try_create(&bus->qbus, name);
if (!dev) {
return NULL;
}
qdev_prop_set_uint32(dev, "addr", devfn);
qdev_prop_set_bit(dev, "multifunction", multifunction);
return DO_UPCAST(PCIDevice, qdev, dev);
}
PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn,
bool multifunction,
const char *name)
@ -1727,6 +1742,11 @@ PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name)
return pci_create_simple_multifunction(bus, devfn, false, name);
}
PCIDevice *pci_try_create(PCIBus *bus, int devfn, const char *name)
{
return pci_try_create_multifunction(bus, devfn, false, name);
}
static int pci_find_space(PCIDevice *pdev, uint8_t size)
{
int config_size = pci_config_size(pdev);

4
hw/pci.h
View File

@ -453,8 +453,12 @@ PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction,
PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn,
bool multifunction,
const char *name);
PCIDevice *pci_try_create_multifunction(PCIBus *bus, int devfn,
bool multifunction,
const char *name);
PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name);
PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name);
PCIDevice *pci_try_create(PCIBus *bus, int devfn, const char *name);
static inline int pci_is_express(const PCIDevice *d)
{