After discussion I split the patches.

this patch adds autotest.libhugetlbfs test which tests hugepage support 
inside of kvm guest.

Tested by:ldoktor@redhat.com on RHEL5.4 with kvm-83-72.el5

Dne 9.7.2009 11:24, Lukáš Doktor napsal(a):
> This patch adds kvm_hugepage variant. It prepares the host system and
> start vm with -mem-path option. It does not clean after itself, because
> it's impossible to unmount and free hugepages before all guests are
> destroyed.
>
> There is also added autotest.libhugetlbfs test.
>
> I need to ask you what to do with change of qemu parameter. Newest
> versions are using -mempath insted of -mem-path. This is impossible to
> fix using current config file. I can see 2 solutions:
> 1) direct change in kvm_vm.py (parse output and try another param)
> 2) detect qemu capabilities outside and create additional layer (better
> for future occurrence)
>
> Tested by:ldoktor@redhat.com on RHEL5.4 with kvm-83-72.el5