On Wed, Jun 26, 2013 at 03:43:35PM +0000, Leonid Yegoshin wrote: > This is a precursor for EVA specs implementation on Aptiv cores. > > EVA has different virtual address sets for kernel and user space and it can use memory on different physical address location. For exam, on Malta it can use a natural 0x80000000, one our customer put memory into 0x40000000 etc. Hmm... Any significant reduction below 2GB sounds like opening a can of worms with address space layout assumption in some application code. I guess they were desperately looking to increase kernel memory, highmem didn't fit the bill nor going 64 bit so this was the solution? Ralf