diff options
Diffstat (limited to 'hw/spapr_vio.c')
-rw-r--r-- | hw/spapr_vio.c | 84 |
1 files changed, 79 insertions, 5 deletions
diff --git a/hw/spapr_vio.c b/hw/spapr_vio.c index 2dcc0361e..464fe8744 100644 --- a/hw/spapr_vio.c +++ b/hw/spapr_vio.c @@ -749,21 +749,95 @@ static void spapr_vio_register_devices(void) device_init(spapr_vio_register_devices) #ifdef CONFIG_FDT +static int compare_reg(const void *p1, const void *p2) +{ + VIOsPAPRDevice const *dev1, *dev2; + + dev1 = (VIOsPAPRDevice *)*(DeviceState **)p1; + dev2 = (VIOsPAPRDevice *)*(DeviceState **)p2; + + if (dev1->reg < dev2->reg) { + return -1; + } + if (dev1->reg == dev2->reg) { + return 0; + } + + /* dev1->reg > dev2->reg */ + return 1; +} + int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt) { - DeviceState *qdev; - int ret = 0; + DeviceState *qdev, **qdevs; + int i, num, ret = 0; + /* Count qdevs on the bus list */ + num = 0; QTAILQ_FOREACH(qdev, &bus->bus.children, sibling) { - VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev; + num++; + } + + /* Copy out into an array of pointers */ + qdevs = g_malloc(sizeof(qdev) * num); + num = 0; + QTAILQ_FOREACH(qdev, &bus->bus.children, sibling) { + qdevs[num++] = qdev; + } + + /* Sort the array */ + qsort(qdevs, num, sizeof(qdev), compare_reg); + + /* Hack alert. Give the devices to libfdt in reverse order, we happen + * to know that will mean they are in forward order in the tree. */ + for (i = num - 1; i >= 0; i--) { + VIOsPAPRDevice *dev = (VIOsPAPRDevice *)(qdevs[i]); ret = vio_make_devnode(dev, fdt); if (ret < 0) { - return ret; + goto out; } } - return 0; + ret = 0; +out: + free(qdevs); + + return ret; +} + +int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus) +{ + VIOsPAPRDevice *dev; + char *name, *path; + int ret, offset; + + dev = spapr_vty_get_default(bus); + if (!dev) + return 0; + + offset = fdt_path_offset(fdt, "/chosen"); + if (offset < 0) { + return offset; + } + + name = vio_format_dev_name(dev); + if (!name) { + return -ENOMEM; + } + + if (asprintf(&path, "/vdevice/%s", name) < 0) { + path = NULL; + ret = -ENOMEM; + goto out; + } + + ret = fdt_setprop_string(fdt, offset, "linux,stdout-path", path); +out: + free(name); + free(path); + + return ret; } #endif /* CONFIG_FDT */ |