search for: pageframes

...to attempt to atomically and very quickly determine if there are sufficient pages available in the system and, if so, "set aside" that quantity of pages for future allocations by that domain. Unlike an existing hypercall such as increase_reservation or populate_physmap, specific physical pageframes are not assigned to the domain because this cannot be done sufficiently quickly (especially for very large allocations in an arbitrarily fragmented system) and so the existing mechanisms result in classic time-of-check-time-of-use (TOCTOU) races. One can think of claiming as similar to a "laz...

Radhakrishnan, Prashanth wrote: > Hi, > > I wanted to know if the following would work: > - memory-hotplug on x86_64 domUs > - memory-hotplug + ballooning interplay (e.g. > http://lkml.org/lkml/2008/4/3/449), again on x86_64 domUs > > For starts, if I read the Xen linux src (at > http://xenbits.xensource.com/linux-2.6.18-xen.hg) right, it says that > SPARSEMEM cannot

All, I''m posting to the Xen-devel list and the OSDL fastboot list. There are a number of Xen folks who''ll want to look at the code. For the fastboot folks, this is mostly intended as an announcement of the port. Please limit your replies to the list(s) that they applies to, thanks :-) A number of people have expressed interest in kexec support for Xen guests. In