Re: [PATCH v5 1/2] lxc: Add Real Time Clock device into allowed devices

This commit share host Real Time Clock device (rtc) into LXC containers to support hardware clock. This should be available setting up a `rtc` timer under clock section. Since this option is not emulated, it should be available only for `localtime` clock. This option should be readonly due to security reasons. Before: root# hwclock --verbose hwclock from util-linux 2.32.1 System Time: 1581877557.598365 Trying to open: /dev/rtc0 Trying to open: /dev/rtc Trying to open: /dev/misc/rtc No usable clock interface found. hwclock: Cannot access the Hardware Clock via any known method. Now: root# hwclock 2020-02-16 18:23:55.374134+00:00 root# hwclock -w hwclock: ioctl(RTC_SET_TIME) to /dev/rtc to set the time failed: Permission denied Signed-off-by: Julio Faracco <jcfaracco(a)gmail.com&gt; --- docs/formatdomain.html.in | 2 +- src/lxc/lxc_cgroup.c | 33 ++++++++++++++++++++ src/lxc/lxc_controller.c | 66 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 100 insertions(+), 1 deletion(-)