Izik Eidus wrote:
> Anthony Liguori wrote:
>>
>> I think it's just a matter of calling do_mmap() with the appropriate 
>> parameters.  It looks likes there's some drivers call do_mmap() 
>> directly.
>>
> yea, i think you right, this is excellent idea!, when we will merge 
> the swapping to kvm, we will add swapping support to older userspace.

Here's a patch against your series.  The memset in kvmctl ends up making 
the guest use all physical memory to start off with but I did confirm 
that once the system is under memory pressure, the guest's memory 
becomes swappable.  Of course, it's quite painful :-)

A nice thing though is that a lot of the code becomes a bit cleaner and 
we can eliminate the phys_mem array entirely.

Regards,

Anthony Liguori