diff options
| -rw-r--r-- | hw/pci.c | 36 |
1 files changed, 36 insertions, 0 deletions
@@ -39,6 +39,7 @@ struct PCIBus { PCIBus *next; /* The bus IRQ state is the logical OR of the connected devices. Keep a count of the number of devices with raised IRQs. */ + int nirq; int irq_count[]; }; @@ -49,16 +50,51 @@ target_phys_addr_t pci_mem_base; static int pci_irq_index; static PCIBus *first_bus; +static void pcibus_save(QEMUFile *f, void *opaque) +{ + PCIBus *bus = (PCIBus *)opaque; + int i; + + qemu_put_be32s(f, &bus->nirq); + for (i=0; i<bus->nirq; i++) + qemu_put_be32s(f, &bus->irq_count[i]); +} + +static int pcibus_load(QEMUFile *f, void *opaque, int version_id) +{ + PCIBus *bus = (PCIBus *)opaque; + int i, nirq; + + if (version_id != 1) + return -EINVAL; + + qemu_get_be32s(f, &nirq); + if (bus->nirq != nirq) { + fprintf(stderr, "pcibus_load: nirq mismatch: src=%d dst=%d\n", + nirq, bus->nirq); + return -EINVAL; + } + + for (i=0; i<nirq; i++) + qemu_get_be32s(f, &bus->irq_count[i]); + + return 0; +} + PCIBus *pci_register_bus(pci_set_irq_fn set_irq, pci_map_irq_fn map_irq, qemu_irq *pic, int devfn_min, int nirq) { PCIBus *bus; + static int nbus = 0; + bus = qemu_mallocz(sizeof(PCIBus) + (nirq * sizeof(int))); bus->set_irq = set_irq; bus->map_irq = map_irq; bus->irq_opaque = pic; bus->devfn_min = devfn_min; + bus->nirq = nirq; first_bus = bus; + register_savevm("PCIBUS", nbus++, 1, pcibus_save, pcibus_load, bus); return bus; } |