Move original file into source directory.
Add modified file of linux-3.12.6

Makefile is linux-3.12.6/kernel/Makefile

syscall_64.tbl is linux-3.12.6/arch/x86/syscall/syscall_64.tbl

syscalls.h is linux-3.12.6/include/linux/syscalls.h
The modified version of lookup_paddr.c

add pte related actions.

pay attention on that pte_offset_kernel not pte_offset
The modified version of fork_ex.c

Use system call of lookup_paddr (syscall number be set to 315 here.)
to find the physical address of the virtual memory.
Complete the Report without source code.
Finish the report.