Re: [Qemu-devel] SMP and qemu scheduler, HELP

2015-08-25 Thread françois Guerret
.org > > On 24 August 2015 at 11:03, françois Guerret > wrote: > > Hello, > > > > I use qemu to emulate a SMP multicore processor and I am looking for a way : > > * either to ask qemu scheduler to execute an other core. For that I need a > > kind of > >

[Qemu-devel] SMP and qemu scheduler, HELP

2015-08-24 Thread françois Guerret
Hello, I use qemu to emulate a SMP multicore processor and I am looking for a way : * either to ask qemu scheduler to execute an other core. For that I need a kind of *yield()* syscall that I could insert into user code and which would be catched by QEMU scheduler. * or to give an optio

[Qemu-devel] QEMU -- SMP and TIME

2015-07-23 Thread françois Guerret
ur goal. > I understand that you want to bind each virtual core with a host thread > then ask the host to schedule it in order to get the same amount of > execution time on each vcpu, is that right ? > I'm not sure that qemu can modify its host OS scheduling. > > Rega

[Qemu-devel] Newcomer -- clock issue

2015-05-18 Thread françois Guerret
Hello, I am a newcomer on QEMU so I would like to ask a few questions about the way QEMU works before beginning to develop. After some experiments and after having read the source code I understood that the time (the clocks) on which the timers are based in QEMU depends: on the host clock on t