debugfs의 kernel_page_tables 내용 확인

1. kernel source 다운

apt install linux-source libelf-dev libssl-dev dwarves
tar jxvf /usr/src/linux-source-5.15.0.tar.bz2

linux-source-5.4.0으로 설치됨..

2. kernel compile 및 설치

cd linux-source-5.15.0
make localmodconfig
make menuconfig
#-Enable CONFIG_PTDUMP_DEBUGFS (kernel hackingàmemory debuggingàexport kernel page table ...)
make –j5
make modules_install && make install

안됨...

3. reboot

4.kernel page table 확인

mount –t debugfs /
cat /sys/kernel/debug/kernel_page_tables