Re: [Qemu-devel] [PATCH 0/7] icount migration and clock.

[Paolo Bonzini]

Il 01/08/2014 01:37, address@hidden ha scritto:
> From: KONRAD Frederic <address@hidden>
> 
> Those are some icount patches required for reverse execution.
> 
> It introduces an icount clock which is only growing with icount.
> It allows QEMU to migrate icount so virtual clock is kept if the VM is 
> migrated
> in icount mode (which is mandatory for migration based snapshot).
> 
> They are rebased on uq/master of
> git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git
> 
> And can be cloned here:
> git://git.greensocs.com/qemu_cexe.git:cexe_1_3_v6_rebased
> 
> Thanks,
> Fred
> 
> KONRAD Frederic (7):
>   icount: put icount variables into TimerState.
>   migration: migrate icount fields.
>   migration: make qemu_savevm_state public.
>   icount: introduce icount timer.
>   icount: check for icount clock deadline when cpu loop exits.
>   icount: make icount extra computed on icount clock as well.
>   timer: add cpu_icount_to_ns function.
> 
>  cpus.c                  | 95 
> ++++++++++++++++++++++++++++++++++++++-----------
>  include/qemu/timer.h    | 10 +++++-
>  include/sysemu/sysemu.h |  1 
>  qemu-timer.c            |  8 ++++-
>  savevm.c                |  2 +-
>  stubs/cpu-get-icount.c  |  2 +-
>  6 files changed, 94 insertions(+), 24 deletions(-)
> 

Thanks, I applied all patches and pushed everything to icount on
git://github.com/bonzini/qemu.git.  I've also dropped Sebastian's
"icount: Make icount_time_shift available everywhere" and adjusted his
stuff to use cpu_icount_to_ns instead.

I'm planning to send out patches 1/2/7 in my first 2.2 pull request,
together with Sebastian's host clock alignment feature.  The others will
have to wait for the reverse execution patches which actually use it.

Paolo