On Tue, Nov 06, 2007 at 11:50:13AM -0800, H. Peter Anvin wrote: > Willy Tarreau wrote: > >Just out of curiosity, what would be the problem if the MTRRs covered more > >than the memory size ? For instance, instead of having 512 MB at 4G, why > >not have 1G at 4G ? > > That's fine, *as long as* you don't have any I/O devices there, > including things like UMA graphics devices or memory areas used by SMM. > In theory, those should be marked reserved in e820. In practice...
OK, thanks Peter for the explanation. Cheers, Willy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/