2 Commits

Author	SHA1	Message	Date
Dietmar Maurer	cf9cc8878d	add backup related monitor commands ... We use a generic BackupDriver struct to encapsulate all archive format related function. Another option would be to simply dump <devid,cluster_num,cluster_data> to the output fh (pipe), and an external binary saves the data. That way we could move the whole archive format related code out of qemu.	2013-02-21 12:16:51 +01:00
Dietmar Maurer	1d0c6dfc96	add basic backup support to block driver ... Function backup_job_create() creates a block job to backup a block device. The coroutine is started with backup_job_start(). We call backup_do_cow() for each write during backup. That function reads the original data and pass it to backup_dump_cb(). The tracked_request infrastructure is used to serialize access. Currently backup cluster size is hardcoded to 65536 bytes.	2013-02-21 12:16:37 +01:00