paging interface. two new paging interface files are added
(paging.c and paging.h)
 
Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxxxxx>
Signed-off-by: Wei Huang <Wei.Huang2@xxxxxxx>
 
 
b/xen/arch/x86/paging.c        |   53 ++++++++
b/xen/include/asm-x86/paging.h |  258
+++++++++++++++++++++++++++++++++++++++++
xen/arch/x86/Makefile          |    1
3 files changed, 312 insertions(+)