Re: [Xen-devel] help for dirty bitmap

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Sun, 2015-11-15 at 13:13 +0800, éå wrote:
> Hi,alls
> 
> Â Â As we know,xen 4+Âmaintains a dirty bitmap. Snapshot or migration
> will use this bitmap.ÂWhen the guest domain changes the memory pageï VMM
> can capture it and set dirty bitmap to 1.Â
> 
> Â Â But I can't know how VMM to maintain this dirty bitmap. Under what
> circumstances VMM will set the dirty page bitmap to 1, and how to track
> the page is be dirty?

The keyword you are looking for is "logdirty". Grepping the source base for
that should get you on the right track.

Ian.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel