Am 04.01.2011 12:43, Glauber Costa wrote:
> On Tue, 2011-01-04 at 12:34 +0100, Jan Kiszka wrote:
>> Am 04.01.2011 12:08, Glauber Costa wrote:
>>> On Tue, 2011-01-04 at 09:32 +0100, Jan Kiszka wrote:
>>>> From: Jan Kiszka <jan.kis...@siemens.com>
>>>>
>>>> If kvmclock is used, which implies the kernel supports it, register a
>>>> kvmclock device with the sysbus. Its main purpose is to save and restore
>>>> the kernel state on migration, but this will also allow to visualize it
>>>> one day.
>>>
>>> I would prefer having no pre-save, and doing the ioctl in the state
>>> change handler. But I won't nitpick about that, if the maintainers think
>>> this is okay, all the rest of the patch looks fine as well.
>>
>> I did this for a reason: to be able to obtain the current clock state
>> even while the vm is running. It's cleaner IMHO.
> 
> but if we're on pre-save, we are certain that the vm is stopped at this
> moment, no ?

Maybe at the moment, but not for device state dumping or maybe (dunno)
for Kemari's continuous sync'ing. I simply want to avoid this implicit
dependency.

Jan

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