kvm on amd64 - >6G?

[Kris Kennaway]

Daniel O'Connor wrote:
> On Wed, 27 Aug 2008, Kris Kennaway wrote:
>> will now get you this:
>>
>> vm.kvm_free: 547729960960
>> vm.kvm_size: 549755809792
>>
>> on HEAD.  :-)
> 
> Holy fat cache Batman!
> 
> Any chance it could be made a tunable?
> 

I don't know what the impact might be of changing these constants to 
runtime variable accesses, if they are in a critical path somewhere.

Kris