[Qemu-devel] [PATCH 4/4] xen: Always set the vram dirty during migration.

[Anthony PERARD <anthony.perard@citrix.com>]

Because the call to track the dirty bit in the video ram during migration won't
work (it returns -1), we set dirtybit on the all video ram.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
---
 xen-all.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/xen-all.c b/xen-all.c
index 498883b..00bdb50 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -502,6 +502,11 @@ static void xen_sync_dirty_bitmap(XenIOState *state,
         return;
     }
 
+    if (unlikely(xen_in_migration)) {
+        /* track_dirty_vram does not work during migration */
+        memory_region_set_dirty(framebuffer, 0, size);
+        return;
+    }
     rc = xc_hvm_track_dirty_vram(xen_xc, xen_domid,
                                  start_addr >> TARGET_PAGE_BITS, npages,
                                  bitmap);
-- 
Anthony PERARD