CTRL-ALT-TLB Artifacts

Test Machines

Name	CPU	OS
Meteorlake	Intel Ultra 7 155H	Ubuntu 24.04.3
Kabylake	Intel Core i5-7260U	Ubuntu 24.04.3

Repository Structure

Directory	Description
kernel/	Kernel module providing an ioctl interface to invalidate TLB entries (requires ring-0 privileges)
Flexo/	Flexo framework variants for TLB-based weird-machine execution (DCache and TLB covert channels)
tools/	Tools for transient window and TLB exploration (tlb-info, tlb-test)

Setup

Kernel Module

The kernel module is required for all experiments. Build and insert it with root privileges:

cd kernel/
make
insmod tlb_ioctl.ko

To remove the module:

rmmod tlb_ioctl