kvm_register_mark_available
kvm_register_mark_available(vcpu, reg);
kvm_register_mark_available(vcpu, VCPU_REG_CR3);
kvm_register_mark_available(vcpu, VCPU_REG_RFLAGS);
kvm_register_mark_available(vcpu, VCPU_REG_RFLAGS);
kvm_register_mark_available(vcpu, reg);
kvm_register_mark_available(vcpu, VCPU_REG_PDPTR);
kvm_register_mark_available(vcpu, VCPU_REG_CR0);
kvm_register_mark_available(vcpu, VCPU_REG_CR4);
kvm_register_mark_available(vcpu, VCPU_REG_SEGMENTS);
kvm_register_mark_available(vcpu, VCPU_REG_EXIT_INFO_1);
kvm_register_mark_available(vcpu, VCPU_REG_EXIT_INFO_2);
kvm_register_mark_available(&vmx->vcpu, VCPU_REG_SEGMENTS);