We’ve talked about Ironclad a few times, but there’s been two new releases since the 0.6.0 release we covered last, so let’s see what the project’s been up to. As a refresher, Ironclad is a formally verified, hard real-time capable kernel written in SPARK and Ada. Versions 0.7.0 and 0.8.0 improved support for block device caching, added a basic NVMe driver, added support for x86’s SMAP, switched from KVM to NVMM for Ironclad’s virtualization interface, and much, much more. In the meantime, Ironclad also added support for RISC-V, making it usable on any 64 bit RISC-V target that supports a Limine-protocol compatible bootloader.
The easiest way to try out Ironclad is to download Gloire, a distribution that uses Ironclad and the GNU tools. It can be installed in both a virtual machine and on real hardware.
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