kvm: Rework dirty bitmap synchronization

Extend kvm_physical_sync_dirty_bitmap() so that is can sync across
multiple slots. Useful for updating the whole dirty log during
migration. Moreover, properly pass down errors the whole call chain.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/kvm.h b/kvm.h
index 1d247e093e..d0738f5fa0 100644
--- a/kvm.h
+++ b/kvm.h
@@ -40,8 +40,8 @@ void kvm_set_phys_mem(target_phys_addr_t start_addr,
                       ram_addr_t size,
                       ram_addr_t phys_offset);
 
-void kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
-                                    target_phys_addr_t end_addr);
+int kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
+                                   target_phys_addr_t end_addr);
 
 int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
 int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);