diff options
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/vmbus_drv.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 4b0f2065a4bd..65535c32662d 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -678,6 +678,23 @@ static const struct attribute_group vmbus_dev_group = { }; __ATTRIBUTE_GROUPS(vmbus_dev); +/* Set up the attribute for /sys/bus/vmbus/hibernation */ +static ssize_t hibernation_show(struct bus_type *bus, char *buf) +{ + return sprintf(buf, "%d\n", !!hv_is_hibernation_supported()); +} + +static BUS_ATTR_RO(hibernation); + +static struct attribute *vmbus_bus_attrs[] = { + &bus_attr_hibernation.attr, + NULL, +}; +static const struct attribute_group vmbus_bus_group = { + .attrs = vmbus_bus_attrs, +}; +__ATTRIBUTE_GROUPS(vmbus_bus); + /* * vmbus_uevent - add uevent for our device * @@ -1024,6 +1041,7 @@ static struct bus_type hv_bus = { .uevent = vmbus_uevent, .dev_groups = vmbus_dev_groups, .drv_groups = vmbus_drv_groups, + .bus_groups = vmbus_bus_groups, .pm = &vmbus_pm, }; |