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ARM64 ACPI status report 3 (final)
Changes since the last update:
- intrctl(8) is now supported on ARM and ARM64, along with
- Added support for GICv2m MSI/MSI-X on non-ACPI (FDT) platforms.
- We can now build ARM64 kernels with ACPI and without PCI.
- Fixed an issue where ARM64 bus_dma would only allocate memory from the
first memory range.
- Lots and lots of testing and bug fixes related to MSI/MSI-X on GICv3.
- Added support to bootaa64.efi for loading kernels over NFS.
- When netbooting, bootaa64.efi will pass the network interface's MAC
address to the kernel to help it auto-detect the correct root device.
- Fixed acpi_intr_establish to use a new MD interface for establishing
interrupts; the previous interface (acpi_md_OsInstallInterruptHandler)
is meant for ACPI subsystem interrupts and does not allow the caller to
pass in IPL, mpsafe hints, etc.
- Added support for PCI I/O space to acpipchb(4). This is required for
virtio at pci.
So where we are today:
- Softiron Overdrive 1000: works, fully supported
- QEMU (aarch64-softmmu): works, fully supported
- QEMU (KVM w/ GICv3-ITS): works, tested on ROCKPro64, fully supported
- Scaleway ARM64 VPS: works, tested on 4 and 6 CPU configurations, fully
- Gigabyte MT30-GS2: boots, xhci and sata not working (Nick has the
hardware and is working on these issues)
- (not SBSA compliant, but for fun) Raspberry Pi 3: kernel starts, does
not boot due to lack of driver attach glue for ACPI.
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