From 8649a3ebda6b01ab0701ad7bb6cf495fda90b977 Mon Sep 17 00:00:00 2001 From: Blue Swirl Date: Sat, 5 Feb 2011 14:34:32 +0000 Subject: [PATCH] pci: add creation functions that may fail Signed-off-by: Blue Swirl --- hw/pci.c | 20 ++++++++++++++++++++ hw/pci.h | 4 ++++ 2 files changed, 24 insertions(+) diff --git a/hw/pci.c b/hw/pci.c index d5bbba9..5e6e216 100644 --- a/hw/pci.c +++ b/hw/pci.c @@ -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); diff --git a/hw/pci.h b/hw/pci.h index 0d2753f..113e556 100644 --- a/hw/pci.h +++ b/hw/pci.h @@ -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) { -- 2.7.4