On 03/05/2013 02:39 AM, Lei Li wrote: > This patch series attempts to add time resync support > to qemu-ga by introducing qemu-ga commands guest-get-time > and guest-set-time. > > Right now, when a guest is paused or migrated to a file > then loaded from that file, the guest OS has no idea that > there was a big gap in the time. Depending on how long the > gap was, NTP might not be able to resynchronize the guest. > So adding new guest-agent command that is called any time > a guest is resumed and which tells the guest to update its > own wall clock time based on the information from the host > will make it easier for a guest to resynchronize without > waiting for NTP. > > The previous RFC send for discussion and suggestion as link > here: > > http://article.gmane.org/gmane.comp.emulators.qemu/186126 > > The interface for these commands like: > > { 'command': 'guest-get-time', 'returns': 'int' } > > { 'command': 'guest-set-time', 'data': { 'time': int } } > > Notes: > For the implementition of win32-specific commands, I plan > to send it out in another thread later. > > Suggestions and comments are welcome! > > Changes since v4: > - Fix the missing error exit pointed by Eric. > - Doc improvement from Eric.
Thanks. Series: Reviewed-by: Eric Blake <ebl...@redhat.com> -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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