Memory-Aware Cache DOS Attacks

This repository contains code for recreating the experimental results in our paper "Memory-Aware Denial-of-Service Attacks on Shared Cache in Multicore Real-Time Systems", which can be found at https://arxiv.org/abs/2005.10864.

Note that we only provide code for the experiments run with a synthetic workload as the victim task.

Allocate HugePages

$ sudo bash
# echo 200 > /proc/sys/vm/nr_hugepages
# cat /proc/meminfo
# exit

If not available, HugePages can be added to a system by building the Linux kernel with the following configuration options enabled:

CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y

Initialize the IsolBench directory

$ cd MemoryAwareDOS
$ git submodule update --init
$ git submodule update --recursive

Before building and installing the IsolBench benchmarks, change the dram_bitmask value in IsolBench/bench/attacker3.cpp to match the address mapping bitmask of the target platform. For example, on the Pi 4, dram_bitmask should be set as follows:

(line 74) static unsigned long dram_bitmask = 0x7900;

Once set, build and install the necessary IsolBench benchmarks with:

$ cd IsolBench/bench
$ make bandwidth latency-mlp attacker3
$ sudo cp bandwidth latency-mlp attacker3 /usr/bin
$ cd ../..

Run the tests

$ ./bwread-tests.sh

Generate the figures

$ python3 gen-dat.py
$ cd figures
$ gnuplot gen.gp

The figures can then be found at figures/Fig6.pdf and figures/Fig7.pdf.