On Tue, Sep 04, 2007 at 09:24:17PM -0600, Alex Williamson wrote: > On Wed, 2007-09-05 at 10:20 +0900, Isaku Yamahata wrote: > > > > How about this option? > > - Allocate pseudo physical contiguous region from the end of > > conventional memory and relinquish at somewhere of the booting > > process. It would be almost the same effect ot reduce dom0 size by xen. > > I'm not sure I see where the advantage is here. If xen doesn't have > enough free memory to allocate the contiguous region, how does moving > dom0 memory help that? It might make sense to do this from the > standpoint of preserving low memory and making it more likely that a > contiguous region for low memory can be created, but I don't see the > advantage in the case where xen is already under memory pressure. Can > you explain?
You're correct. This option doesn't work under memory pressure. By using the self grant table unmap and replace, I think we can achieve the similar result without allocation memory from the end. -- yamahata _______________________________________________ Xen-ia64-devel mailing list Xen-ia64-devel@lists.xensource.com http://lists.xensource.com/xen-ia64-devel
