On Mon, 04/27 18:28, Paolo Bonzini wrote: > Most of the time, not all bitmaps have to be marked as dirty; > do not do anything if the interesting ones are already dirty. > Previously, any clean bitmap would have cause all the bitmaps to be > marked dirty. > > In fact, unless running TCG most of the time bitmap operations need > not be done at all, because memory_region_is_logging returns zero. > In this case, skip the call to cpu_physical_memory_range_includes_clean > altogether as well. > > With this patch, cpu_physical_memory_set_dirty_range is called > unconditionally, so there need not be anymore a separate call to > xen_modified_memory. > > Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
Reviewed-by: Fam Zheng <f...@redhat.com>
