Getting started with CHERIoT-RTOS
As the number of small, internet connected devices grows, the security of these devices becomes increasingly important. Research published by Microsoft found that 70% of all CVEs they assigned arose from memory safety issues. This is a figure that has remained stable over the last decade. As smart devices begin to enter our homes and become a part of our every day lives, addressing this class of security vulnerabilities is a big step towards ensuring smart devices remain secure.
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Getting started with CHERI Linux on RISC-V
In this post, we’ll walk through the steps required to build a CHERI-enabled Linux kernel for RISC-V and boot the said kernel using QEMU. Most of the effort to add support for CHERI targets is taking place within forks hosted by the CHERI Alliance. We’ll cover how to build the CHERI Alliance’s forks of LLVM, RISC-V OpenSBI firmware and Linux kernel, along with CHERI Alliance’s fork of QEMU which supports emulation of RISC-V CHERI architecture (the CHERI extensions to the RISC-V instruction set is formally known as RISC-V RVY architecture).
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