[libvirt] [PATCH 0/6] Add more options for clock sync

This series adds two new options for clock synchronization The two current options are: <clock offset='utc'/> <clock offset='localtime'/> This introduces a way to set a timezone for localtime <clock offset='localtime' timezone='Europe/Paris'/> And a way to set a completely arbitrary time, by giving the number of seconds offset from UTC. <clock offset='variable' adjustment='123456'/> It is open to debate whether we need to distinguish this last one via the extra string 'variable', or just add 'adjustment' as an optional attribute for the existing term 'utc'. Opinions welcome