kvm-kmod-2.6.39

After silently releasing kvm-kmod-2.6.38.6 last week as a stable update, here comes the next major new version:

http://sourceforge.net/projects/kvm/files/kvm-kmod/2.6.39/kvm-kmod-2.6.39.tar.bz2/download

The list of changes looks rather unspectacular, also due to the fact that not all new features can be made available via kmod, e.g. directed yield for guest spinlock optimizations.

Major KVM changes since kvm-kmod-2.6.38.6:
- more micro-optimization of vmentry/exit path
- VMX: various small fixes related to real mode
- SVM: Add support for perf-kvm
- further soft-MMU improvements and fixes
- restore PREEMPT-RT compatibility (allows to update KVM in 2.6.33.x-rt)

kvm-kmod changes:
- fix for crashes on XSAVE-capable hosts
- account for Fedora kernels with backported vzalloc
- remove obsolete IA64 arch