[CRIU] [PATCH 0/5] cpuinfo: Rework cpuinfo dumping, make it optional

[Cyrill Gorcunov]

On Fri, Sep 12, 2014 at 02:04:45PM +0400, Pavel Emelyanov wrote:
> Can you sum up the API change you propose with this?
> 

Currently (with this series applied)
====================================

 - by default cpu caps are not dumped at all, one need to
   pass --cpu-cap all to force CRIU write cpu caps bits into
   the image

 - on restore we test if image with cpuinfo is present on disk,
   and if so -- test that image is capable with runtime cpu

that's all for current status

What's need to be done
======================

 - criud helpers which would take cpuinfo from the stream (via
   RPC requiest) and test if the cpu it is spinning on is capable
   with cpuinfo bits obtained from the stream

That's basically I thought how would it work,

Now why I think cpuinfo must be bound into criu dump files (ie not
as some separate file created with "criu dump-cpuinfo" command) --
the cpuinfo bits are entangled with instructions saved in program's
executable memory block.

Thus base functionality is implemented in this series if we need
anything else helpers -- we can do that on top.

	Cyrill