Re: [Xen-devel] [PATCH v2] x86/HVM: correct page dirty marking in hvm_map_guest_frame_rw()

2015-09-22 Thread Jan Beulich
>>> On 22.09.15 at 15:02, wrote: > On 22/09/15 13:53, Jan Beulich wrote: >> Rather than dirtying a page when establishing a (permanent) mapping, >> dirty it when the page gets unmapped, or - if still mapped - on the >> final iteration of a save operation (or in other cases where the guest >> is pa

Re: [Xen-devel] [PATCH v2] x86/HVM: correct page dirty marking in hvm_map_guest_frame_rw()

2015-09-22 Thread Andrew Cooper
On 22/09/15 13:53, Jan Beulich wrote: Rather than dirtying a page when establishing a (permanent) mapping, dirty it when the page gets unmapped, or - if still mapped - on the final iteration of a save operation (or in other cases where the guest is paused or already shut down). (Transient mapping

[Xen-devel] [PATCH v2] x86/HVM: correct page dirty marking in hvm_map_guest_frame_rw()

2015-09-22 Thread Jan Beulich
Rather than dirtying a page when establishing a (permanent) mapping, dirty it when the page gets unmapped, or - if still mapped - on the final iteration of a save operation (or in other cases where the guest is paused or already shut down). (Transient mappings continue to get dirtied upon getting m