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 X-Gene v2 Ampere Altra (released this year!) What’s missing here? Any SoC for a platform present at a lower price point. And on why, read https://patchwork.kernel.org/project/linux-acpi/patch/20200103174935.5612-1-vidyas@nvidia.com/ . It’s obvious in this… Continue reading PCIe quirks on Arm systems w/ ACPI
macOS EULA licensing restrictions affecting virtualisation
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 to two (2) additional copies or instances of the Apple Software within virtual operating system environments on each Mac Computer you own or control that is already running the Apple… Continue reading macOS EULA licensing restrictions affecting virtualisation
Standards on Arm platforms for OS support
On the firmware side, an ideally standard Arm machine boots using UEFI and ACPI. The other CPUs are initialised with PSCI and dynamic power management is handled with CPPC. On the hardware side, requirements are having a GIC as an interrupt controller and a standard PCIe ECAM-compliant controller. (+ other sets of MMIO devices, which… Continue reading Standards on Arm platforms for OS support