* KVM/ARM VGIC state saving and restoring implementation. Completed the initial RFC patch and sent it out. [RFC PATCH 1/1] KVM: ARM: add vgic state save and restore support During the implementation, I met a lot issues and some of them were hard to make decision. There're two different ways to implement such function, however, each way has different issues. I currently can not make sure which one is better. So i raised them in the RFC patch and request for people's comments and suggestions.