diff options
Diffstat (limited to 'blockdev.c')
-rw-r--r-- | blockdev.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/blockdev.c b/blockdev.c index 1780d7723a..e595910476 100644 --- a/blockdev.c +++ b/blockdev.c @@ -135,6 +135,23 @@ void blockdev_auto_del(BlockDriverState *bs) } } +/** + * Returns the current mapping of how many units per bus + * a particular interface can support. + * + * A positive integer indicates n units per bus. + * 0 implies the mapping has not been established. + * -1 indicates an invalid BlockInterfaceType was given. + */ +int drive_get_max_devs(BlockInterfaceType type) +{ + if (type >= IF_IDE && type < IF_COUNT) { + return if_max_devs[type]; + } + + return -1; +} + static int drive_index_to_bus_id(BlockInterfaceType type, int index) { int max_devs = if_max_devs[type]; |