Dan Hecht wrote: > Right. But that is only because Xen decides to allocate the page from > the (machine) physical space, rather than from the pseudo-physical > space. My question is: why doesn't Xen allocate shared_info from the > pseudo-physical space? Historical reasons ... > If it had, then this page wouldn't need to be > treated specially. I'm not sure, but I seem to remember on 64-bit > Xen/XenLinux allocated shared_info from pseudo-physical space already... Yep, the ia64 port which came later handles some things differently, specifically some "magic" pages are allocated more clever ;) Changing that for x86 would break existing guests though. cheers, Gerd -- Gerd Hoffmann <kraxel at suse.de>
