Jeremy Fitzhardinge wrote: > > Hm, you need to quiesce the kernel in some way when you do a migrate, > so making sure it isn't in a hypercall would be just part of that. In > general you'd make sure all but one CPU is parked somewhere, and the > remaining CPU is doing the suspend, right? > > The tricky part for Xen in all this is how to make sure all mfn > references are visible to the hypervisor/toolstack so they can be > remapped; hypercall page contents are not a concern by comparison.
You only need to quiesce if you have guest-visible data-structures that have details about the underlying hardware. So Xen needs to quiesce, but I don't know of any other VMM that would. VMI, KVM and lhype should be capable of transparent migration without guest involvement. Zach ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
