diff options
| -rw-r--r-- | hw/i386/pc.c | 59 | ||||
| -rw-r--r-- | include/hw/i386/pc.h | 8 |
2 files changed, 67 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 4fad414..70527d8 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -58,6 +58,7 @@ #include "hw/boards.h" #include "hw/pci/pci_host.h" #include "acpi-build.h" +#include "hw/mem/pc-dimm.h" /* debug PC/ISA interrupts */ //#define DEBUG_IRQ @@ -1543,12 +1544,70 @@ void qemu_register_pc_machine(QEMUMachine *m) g_free(name); } +static void pc_dimm_plug(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + Error *local_err = NULL; + PCMachineState *pcms = PC_MACHINE(hotplug_dev); + PCDIMMDevice *dimm = PC_DIMM(dev); + PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); + MemoryRegion *mr = ddc->get_memory_region(dimm); + uint64_t addr = object_property_get_int(OBJECT(dimm), PC_DIMM_ADDR_PROP, + &local_err); + if (local_err) { + goto out; + } + + memory_region_add_subregion(&pcms->hotplug_memory, + addr - pcms->hotplug_memory_base, mr); + vmstate_register_ram(mr, dev); +out: + error_propagate(errp, local_err); +} + +static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { + pc_dimm_plug(hotplug_dev, dev, errp); + } +} + +static HotplugHandler *pc_get_hotpug_handler(MachineState *machine, + DeviceState *dev) +{ + PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(machine); + + if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { + return HOTPLUG_HANDLER(machine); + } + + return pcmc->get_hotplug_handler ? + pcmc->get_hotplug_handler(machine, dev) : NULL; +} + +static void pc_machine_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + PCMachineClass *pcmc = PC_MACHINE_CLASS(oc); + HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); + + pcmc->get_hotplug_handler = mc->get_hotplug_handler; + mc->get_hotplug_handler = pc_get_hotpug_handler; + hc->plug = pc_machine_device_plug_cb; +} + static const TypeInfo pc_machine_info = { .name = TYPE_PC_MACHINE, .parent = TYPE_MACHINE, .abstract = true, .instance_size = sizeof(PCMachineState), .class_size = sizeof(PCMachineClass), + .class_init = pc_machine_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_HOTPLUG_HANDLER }, + { } + }, }; static void pc_machine_register_types(void) diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 501d9a0..c3ed858 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -31,9 +31,17 @@ struct PCMachineState { MemoryRegion hotplug_memory; }; +/** + * PCMachineClass: + * @get_hotplug_handler: pointer to parent class callback @get_hotplug_handler + */ struct PCMachineClass { /*< private >*/ MachineClass parent_class; + + /*< public >*/ + HotplugHandler *(*get_hotplug_handler)(MachineState *machine, + DeviceState *dev); }; typedef struct PCMachineState PCMachineState; |