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Re: [Qemu-devel] [PATCH 0/7] icount migration and clock.
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH 0/7] icount migration and clock. |
Date: |
Fri, 01 Aug 2014 09:40:44 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 |
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
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Paolo Bonzini <=