diff --git a/exec.c b/exec.c
index 759055d..f0e2bd3 100644
--- a/exec.c
+++ b/exec.c
@@ -2066,10 +2066,8 @@
 static void invalidate_and_set_dirty(hwaddr addr,
                                      hwaddr length)
 {
-    if (cpu_physical_memory_is_clean(addr)) {
-        /* invalidate code */
-        tb_invalidate_phys_page_range(addr, addr + length, 0);
-        /* set dirty bit */
+    if (cpu_physical_memory_range_includes_clean(addr, length)) {
+        tb_invalidate_phys_range(addr, addr + length, 0);
         cpu_physical_memory_set_dirty_range_nocode(addr, length);
     }
     xen_modified_memory(addr, length);
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index cf1d4c7..8fc75cd 100644
--- a/include/exec/ram_addr.h
+++ b/include/exec/ram_addr.h
@@ -49,6 +49,21 @@
     return next < end;
 }
 
+static inline bool cpu_physical_memory_get_clean(ram_addr_t start,
+                                                 ram_addr_t length,
+                                                 unsigned client)
+{
+    unsigned long end, page, next;
+
+    assert(client < DIRTY_MEMORY_NUM);
+
+    end = TARGET_PAGE_ALIGN(start + length) >> TARGET_PAGE_BITS;
+    page = start >> TARGET_PAGE_BITS;
+    next = find_next_zero_bit(ram_list.dirty_memory[client], end, page);
+
+    return next < end;
+}
+
 static inline bool cpu_physical_memory_get_dirty_flag(ram_addr_t addr,
                                                       unsigned client)
 {
@@ -64,6 +79,16 @@
     return !(vga && code && migration);
 }
 
+static inline bool cpu_physical_memory_range_includes_clean(ram_addr_t start,
+                                                            ram_addr_t length)
+{
+    bool vga = cpu_physical_memory_get_clean(start, length, DIRTY_MEMORY_VGA);
+    bool code = cpu_physical_memory_get_clean(start, length, DIRTY_MEMORY_CODE);
+    bool migration =
+        cpu_physical_memory_get_clean(start, length, DIRTY_MEMORY_MIGRATION);
+    return vga || code || migration;
+}
+
 static inline void cpu_physical_memory_set_dirty_flag(ram_addr_t addr,
                                                       unsigned client)
 {