KVM: Portability: Move kvm_vm_stat to x86.h

This patch moves kvm_vm_stat to x86.h, and every arch
can define its own kvm_vm_stat in $arch.h
Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

drivers/kvm/kvm.h

@@ -103,16 +103,6 @@ struct kvm_memory_slot {
 	int user_alloc;
 };
 
-struct kvm_vm_stat {
-	u32 mmu_shadow_zapped;
-	u32 mmu_pte_write;
-	u32 mmu_pte_updated;
-	u32 mmu_pde_zapped;
-	u32 mmu_flooded;
-	u32 mmu_recycled;
-	u32 remote_tlb_flush;
-};
-
 struct kvm {
 	struct mutex lock; /* protects everything except vcpus */
 	struct mm_struct *mm; /* userspace tied to this vm */

drivers/kvm/x86.h

@@ -283,6 +283,16 @@ struct kvm_arch{
 	struct page *apic_access_page;
 };
 
+struct kvm_vm_stat {
+	u32 mmu_shadow_zapped;
+	u32 mmu_pte_write;
+	u32 mmu_pte_updated;
+	u32 mmu_pde_zapped;
+	u32 mmu_flooded;
+	u32 mmu_recycled;
+	u32 remote_tlb_flush;
+};
+
 struct kvm_vcpu_stat {
 	u32 pf_fixed;
 	u32 pf_guest;