[Xen-devel] [PATCH V5 4/5] exec, memory: Call to xen_modified_memory.

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

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

Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Reviewed-by: Avi Kivity <avi@xxxxxxxxxx>
---
 exec-obsolete.h | 2 ++
 exec.c          | 1 +
 2 files changed, 3 insertions(+)

diff --git a/exec-obsolete.h b/exec-obsolete.h
index c099256..286e2f7 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 366684c..1114a09 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,
-- 
Anthony PERARD


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