diff options
| -rw-r--r-- | include/sysemu/block-backend.h | 1 | ||||
| -rw-r--r-- | qdev-monitor.c | 18 |
2 files changed, 19 insertions, 0 deletions
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 410eb68145..3b29317349 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -112,6 +112,7 @@ void blk_attach_dev_nofail(BlockBackend *blk, void *dev); void blk_detach_dev(BlockBackend *blk, void *dev); void *blk_get_attached_dev(BlockBackend *blk); BlockBackend *blk_by_dev(void *dev); +BlockBackend *blk_by_qdev_id(const char *id, Error **errp); void blk_set_dev_ops(BlockBackend *blk, const BlockDevOps *ops, void *opaque); int blk_pread_unthrottled(BlockBackend *blk, int64_t offset, uint8_t *buf, int count); diff --git a/qdev-monitor.c b/qdev-monitor.c index bc0213f5e3..4f78ecb091 100644 --- a/qdev-monitor.c +++ b/qdev-monitor.c @@ -28,6 +28,7 @@ #include "qemu/config-file.h" #include "qemu/error-report.h" #include "qemu/help_option.h" +#include "sysemu/block-backend.h" /* * Aliases were a bad idea from the start. Let's keep them @@ -838,6 +839,23 @@ void qmp_device_del(const char *id, Error **errp) } } +BlockBackend *blk_by_qdev_id(const char *id, Error **errp) +{ + DeviceState *dev; + BlockBackend *blk; + + dev = find_device_state(id, errp); + if (dev == NULL) { + return NULL; + } + + blk = blk_by_dev(dev); + if (!blk) { + error_setg(errp, "Device does not have a block device backend"); + } + return blk; +} + void qdev_machine_init(void) { qdev_get_peripheral_anon(); |