|Subject:||Re: [Qemu-devel] time inside qemu|
|Date:||Fri, 29 Dec 2006 18:53:37 +0100|
|User-agent:||Thunderbird 22.214.171.124 (Windows/20061207)|
As I understand, OSes running inside qemu "have" notion of time: (its date and time works, time(1) command works, etc.).
My question is about how qemu manages time. I need to stop and start again this "virtual-time".
I just tried with cpu_disable_ticks() and cpu_enable_ticks(). It seems to work partially: at least now system date and time are out of sync..
Paul Brook wrote:
On Friday 29 December 2006 16:22, Màrius Montón wrote:Hi, For my work on QEMU-SC, I need to stop time inside qemu. I need it in order to simulate HW modules with SystemC simulator, and meanwhile stop qemu time. In this way, applications running on qem should see its time freeze, and measurements of total time spent by application + specific HW be more realistic (now, total time is the sum of SW + HW simulation )qemu is not cycle accurate or even deterministic. Fabrice was working on some code to make it deterministic, but he never posted the code. Paul
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