Minggui Cao c04949d993 DM: add disk-logger to write log into file system ...

disk-logger used to save persistent log as file in disk.
log path: /var/log/acrn-dm/

each log file size is 2MB; default 8 log files; the log
files' suffix will be increased; when file count more than 8,
the last one added, the first one is removed, like form 1-8 to
2-9 to 3-10 ...

Tracked-On: #3012
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>

2019-06-13 13:06:51 +08:00

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