exec, memory: Call to xen_modified_memory.

This patch add some calls to xen_modified_memory to notify Xen about dirtybits
during migration.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Avi Kivity <avi@redhat.com>

2 files changed, 3 insertions, 0 deletions

diff --git a/exec-obsolete.h b/exec-obsolete.h
index c09925610d..286e2f75e1 100644
--- a/exec-obsolete.h
+++ b/exec-obsolete.h
@@ -24,6 +24,7 @@
 #endif
 
 #ifndef CONFIG_USER_ONLY
+#include "hw/xen.h"
 
 ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
                                    MemoryRegion *mr);
@@ -111,6 +112,7 @@ static inline void cpu_physical_memory_set_dirty_range(ram_addr_t start,
     for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
         cpu_physical_memory_set_dirty_flags(addr, dirty_flags);
     }
+    xen_modified_memory(addr, length);
 }
 
 static inline void cpu_physical_memory_mask_dirty_range(ram_addr_t start,
diff --git a/exec.c b/exec.c
index 366684cd78..1114a0932b 100644
--- a/exec.c
+++ b/exec.c
@@ -3427,6 +3427,7 @@ static void invalidate_and_set_dirty(target_phys_addr_t addr,
         /* set dirty bit */
         cpu_physical_memory_set_dirty_flags(addr, (0xff & ~CODE_DIRTY_FLAG));
     }
+    xen_modified_memory(addr, length);
 }
 
 void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,