On Sun, 2011-02-20 at 07:49 +0000, Pavel Machek wrote: > On Sat 2011-02-19 15:12:35, Shriram Rajagopalan wrote: > > The current implementation of xen guest save/restore/checkpoint functionality > > uses PM_SUSPEND and PM_RESUME events. This is not optimal when taking > > checkpoints of a virtual machine (where the suspend hypercall returns > > non-zero, requiring the devices and xenbus to just pickup from where they left > > off instead of a complete teardown/reconnect to backend). > > > > The following set of patches modify this implementation to use Hibernate style > > control flow (freeze/restore for save/restore and freeze/thaw for checkpoint, > > which is merely a cancelled save akin to failed swsusp() ). > > > > These patches are against Ian Campbell's PVHVM tree at > > git://xenbits.xen.org/people/ianc/linux-2.6.git for-stefano/pvhvm > > > > at commit 8a8d1bc753c4e2dda5f2890292d60c67d6ebb573 > > kernel version: 2.6.38-rc4 > > Series looks ok to me... Thanks Pavel, may we take that as an Acked-by? For my part the Xen side is: Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx> The changes to drivers/xen/manage.c depend on some other cleanups made on the Xen side (in linux-next soon if not already via Stefano's tree) so how would you like to handle them? I could point you to a suitable to apply the pm.h bits to or we could carry them in the Xen tree if you are happy with them. Ian. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
