[Qemu-discuss] control the simulated clock

[Sébastien Barthélémy]

Hi all,

to help debugging a real-time linux-based system, I'd like to control
its clock on the fly. To the idea is
to relieve the real-time constraint in order to hook the system to a
(non real-time) simulator.

Could I run the system under qemu and control the simulated hardware
clock? That would be very convenient.

I fear I cannot (found no matching option in the doc, although the
-clock dynticks), but would welcome a confirmation before discounting
this option.

A solution maybe be to stop/cont the VM from the qemu monitor. But I'm
not sure I'll be able to do it at the frequency of the real-time
system (100Hz).

Any insight on that matter?

Note also that a similar question was asked back in 2008 [1], but got no answer.

[1] http://lists.gnu.org/archive/html/qemu-devel/2008-08/msg01109.html

-- 
Best regards,
Sébastien