When ldaxr Doesn't Work: Exclusive Accesses and Cacheability on AArch64
- 2026-10-10 Introduction I’ve now been working on floss, my own operating system (OS) from scratch for AArch64, which is really just a kernel so far, for a couple of months since my last post about Interrupts and the Generic Interrupt Controller on AArch64.
- Right now, floss targets QEMU’s virt and Raspberry Pi 4 (rpi4) boards, as well as real Raspberry Pi 5 (rpi5) hardware.
- Testing on real hardware has been rewarding and makes the project exciting.
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- 2026-10-10 Introduction I’ve now been working on floss, my own operating system (OS) from scratch for AArch64, which is really just a kernel so far, for a couple of months since my last post about Interrupts and the Generic Interrupt Controller on AArch64.
- Right now, floss targets QEMU’s virt and Raspberry Pi 4 (rpi4) boards, as well as real Raspberry Pi 5 (rpi5) hardware.
- Testing on real hardware has been rewarding and makes the project exciting.
Sources: Joelsiks