x86: mmu: don't mark generic sections as present if desired

With demand paging, it is possible for data pages to not be
present in physical memory. The gen_mmu.py script is updated
so that, if so desired, the generic sections are marked
non-present so the paging mechanism can bring them in
if needed.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
1 file changed