1 files changed, 6 insertions, 1 deletions

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a3fd0f91d943..169d07758ee5 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -54,7 +54,7 @@ extern struct kmem_cache *kvm_vcpu_cache;
  */
 struct kvm_io_bus {
         int                   dev_count;
-#define NR_IOBUS_DEVS 6
+#define NR_IOBUS_DEVS 200
         struct kvm_io_device *devs[NR_IOBUS_DEVS];
 };
 
@@ -119,6 +119,11 @@ struct kvm_memory_slot {
         int user_alloc;
 };
 
+static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot)
+{
+        return ALIGN(memslot->npages, BITS_PER_LONG) / 8;
+}
+
 struct kvm_kernel_irq_routing_entry {
         u32 gsi;
         u32 type;