On 08/21/2017 11:30 PM, Stefano Stabellini wrote:
On Mon, 21 Aug 2017, Ross Lagerwall wrote:
When the guest writes to the RTC, Xen emulates it and broadcasts a
TIMEOFFSET ioreq. Emit an RTC_CHANGE QMP message when this happens
rather than ignoring it so that something useful can be done with the
information.
Are there any handlers of the RTC_CHANGE QMP message today? What happens
if there are no handlers?
The libxl toolstack doesn't handle it nor does the XAPI project
currently, although we plan on modifying XAPI to handle it.
It is simply an event that is broadcast to any QMP monitors. If nothing
handles the event, then it is the same behavior as before. If something
is interested in the event, then it can make use of the time offset
however it wants.
--
Ross Lagerwall
