Environment

iso: ubuntu-16.04.3-desktop-amd64.iso

kernel:

root@integrity:~# uname -a
Linux integrity 4.10.0-28-generic #32~16.04.2-Ubuntu SMP Thu Jul 20 10:19:48 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
root@integrity:~#

get the kernel source code：

apt-get install linux-source

check when compiling kernel：

    Kernel hacking  --->
        [*] Export kernel pagetable layout to userspace via debugfs

Description

├── patch
│   └── dump_all_pagetables.c
├── x86_32
└── x86_64
    ├── kernel_all_page_tables
    ├── kernel_all_user_page_tables
    └── kernel_page_tables

• patch: the patch to be added in the kernel source code.
  • dump_all_pagetables.c should be added into arch/x86/mm/. Additionally, please modify the Makefile: obj-$(CONFIG_X86_PTDUMP_CORE) += dump_pagetables.o dump_all_pagetables.o
• x86_64: page tables in x86_64
  • kernel_all_page_tables: exported by dump_all_pagetables.c when the pgd points to &init_level4_pgt(x86_64) or swapper_pg_dir(x86_32)
  • kernel_all_user_page_tables: exported by dump_all_pagetables.c when the pgd points to current->mm->pgd
  • kernel_page_tables: exported by dump_pagetables.c when the pgd points to &init_level4_pgt(x86_64) or swapper_pg_dir(x86_32)
• x86_32: page tables in x86_32