[RFT] mmu optimizations branch

[Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>]

This is a request for testing of the mmu optimizations branch.

Currently the shadow page tables are discarded every time the guest 
performs a context switch.  The mmu branch allows shadow page tables to 
be cached across context switches, greatly reducing the cpu utilization 
on multi process workloads.  It is now stable enough for testing (though 
perhaps not for general use).

I've tested 32-bit Linux (pae and non-pae), 64-bit Linux, and pae 
Windows guests on both 32-bit and 64-bit Intel hosts.

Known problems:

 - no AMD support yet
 - will fail horribly in low host memory situations (so run it with 
plenty of free memory)

I will fix these issues in the next few days.

There are still many optimizations that can be had, and I expect 
performance to improve steadily once it is fully stabilized.

You can download the code from

   http://people.qumranet.com/avi/kvm-mmu-4221.tar.gz

or directly from the subversion repository.

-- 
error compiling committee.c: too many arguments to function


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