diff options
| -rw-r--r-- | hmp-commands.hx | 20 | ||||
| -rw-r--r-- | hmp.c | 28 | ||||
| -rw-r--r-- | hmp.h | 1 |
3 files changed, 49 insertions, 0 deletions
diff --git a/hmp-commands.hx b/hmp-commands.hx index d1cdcfb71b..8c6b91a9c7 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -1059,6 +1059,26 @@ using the specified target. ETEXI { + .name = "drive_backup", + .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?", + .params = "[-n] [-f] device target [format]", + .help = "initiates a point-in-time\n\t\t\t" + "copy for a device. The device's contents are\n\t\t\t" + "copied to the new image file, excluding data that\n\t\t\t" + "is written after the command is started.\n\t\t\t" + "The -n flag requests QEMU to reuse the image found\n\t\t\t" + "in new-image-file, instead of recreating it from scratch.\n\t\t\t" + "The -f flag requests QEMU to copy the whole disk,\n\t\t\t" + "so that the result does not need a backing file.\n\t\t\t", + .mhandler.cmd = hmp_drive_backup, + }, +STEXI +@item drive_backup +@findex drive_backup +Start a point-in-time copy of a block device to a specificed target. +ETEXI + + { .name = "drive_add", .args_type = "pci_addr:s,opts:s", .params = "[[<domain>:]<bus>:]<slot>\n" @@ -907,6 +907,34 @@ void hmp_drive_mirror(Monitor *mon, const QDict *qdict) hmp_handle_error(mon, &errp); } +void hmp_drive_backup(Monitor *mon, const QDict *qdict) +{ + const char *device = qdict_get_str(qdict, "device"); + const char *filename = qdict_get_str(qdict, "target"); + const char *format = qdict_get_try_str(qdict, "format"); + int reuse = qdict_get_try_bool(qdict, "reuse", 0); + int full = qdict_get_try_bool(qdict, "full", 0); + enum NewImageMode mode; + Error *errp = NULL; + + if (!filename) { + error_set(&errp, QERR_MISSING_PARAMETER, "target"); + hmp_handle_error(mon, &errp); + return; + } + + if (reuse) { + mode = NEW_IMAGE_MODE_EXISTING; + } else { + mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS; + } + + qmp_drive_backup(device, filename, !!format, format, + full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP, + true, mode, false, 0, false, 0, false, 0, &errp); + hmp_handle_error(mon, &errp); +} + void hmp_snapshot_blkdev(Monitor *mon, const QDict *qdict) { const char *device = qdict_get_str(qdict, "device"); @@ -55,6 +55,7 @@ void hmp_balloon(Monitor *mon, const QDict *qdict); void hmp_block_resize(Monitor *mon, const QDict *qdict); void hmp_snapshot_blkdev(Monitor *mon, const QDict *qdict); void hmp_drive_mirror(Monitor *mon, const QDict *qdict); +void hmp_drive_backup(Monitor *mon, const QDict *qdict); void hmp_migrate_cancel(Monitor *mon, const QDict *qdict); void hmp_migrate_set_downtime(Monitor *mon, const QDict *qdict); void hmp_migrate_set_speed(Monitor *mon, const QDict *qdict); |