Assuming that instructions from https://kernelshaman.blogspot.com/2021/01/building-xnu-for-macos-big-sur-1101.html were already followed including for the iPhoneOS target… The patch: The build command line: Of course, without kexts that’s not… Read More »Building Arm 64-bit XNU (Darwin 20)
Tachyum is a CPU startup that claims that they will release a VLIW CPU for general purpose use, a claim has been made countless times.… Read More »Thoughts on Tachyum
For checkra1n, we have some non-trivial requirements for the build infrastructure. One of them is that checkra1n must be buildable on both Linux and macOS… Read More »checkra1n/toolchain: targeting Linux and Windows
The hardened runtime is enforced for all executables bundled as part of macOS. As such, chroot isn’t usable anymore for running a macOS CLI environment.
This post is a followup of the prior State of the GPU compute APIs today post on this blog. Users migrate to newer GPUs, sometimes… Read More »GPU compute APIs: importance of binary compatibility
pongoOS 2.4.5 is now available at https://github.com/checkra1n/pongoOS. pongoOS 2.4.5 open-sources the SEP exploit, making that part fully open-source for the very first time. This makes… Read More »The checkra1n open-sourcing process: pongoOS 2.4.5
Intel Houdini is a dynamic binary translation layer to run Arm applications on x86_64 systems. Its targeted platform is Android, but you can use it… Read More »Houdini: run Arm 32-bit and 64-bit applications on an x86_64 system
NVIDIA: Pioneer of the field, mature toolkits. Still evolving quickly, especially for higher-level APIs. Every GPU that NVIDIA sells supports CUDA. The HPC SDK, formerly… Read More »State of the GPU compute APIs today
Taking a look at the list of platforms which have quirks in drivers/acpi/pci_mcfg.c for Arm today: AWS Graviton Qualcomm QDF2432 HiSilicon HIP05/06/07 Cavium ThunderX X-Gene v1… Read More »PCIe quirks on Arm systems w/ ACPI
So what are the biggest restrictions affecting virtualisation of macOS today in the macOS EULA (available at https://www.apple.com/legal/sla/docs/macOSBigSur.pdf)? (iii) to install, use and run up… Read More »macOS EULA licensing restrictions affecting virtualisation