The following two patches should make kdump work when the kvm-intel module is loaded. We need to disable vmx mode before booting the kdump kernel, so I've introduced a notifier interface where KVM can hook and disable virtualization on all CPUs just before they are halted. It has the same purpose of the KVM reboot notifier that gets executed at kexec-time. But on the kdump case, things are not as simple because the kernel has just crashed. The notifier interface being introduced is x86-specific. I don't know if an arch-independent interface would be more appropriate for this case. It was tested only using kvm-intel. Testing on different machines is welcome. -- Eduardo
