FreeBSD/arm64 is the FreeBSD port to the 64-bit ARM architecture, also known as AArch64 or ARMv8. All supported FreeBSD releases include out-of-the-box support for ARMv8, and over 20,000 packages are available in the 3rd party software collection. Cavium's ThunderX is the initial reference platform for the FreeBSD/arm64 port.
- Useful Links
- Known Limitations
FreeBSD Release Engineering builds specific images for arm64 including Pine64 and rpi3. (The rpi3 image can be used on rpi4 as well.) The Cavium Thunder and SoftIron Overdrive series are supported via the normal build chain. Images for certain other boards can be built by crochet.
The basic FreeBSD/arm64 support is available in FreeBSD-CURRENT, FREEBSD-12-STABLE, and FREEBSD-11-STABLE. (For reference, also see the history of FreeBSD/arm64 commits).
The standard buildworld sequence works:
export MAKEOBJDIRPREFIX=<path-to-suitable-objdir> make buildworld TARGET=arm64
The build sequence for the kernel is a fairly standard one:
export MAKEOBJDIRPREFIX=<path-to-suitable-objdir> make buildkernel TARGET=arm64
This results in an image called 'kernel' created in:
** See the 'Source' section above for the svn-checkout-path.
ARM Foundation Model
The ARMv8 Foundation Model is available from ARM. You must read and accept a click-through license to obtain it. The Foundation model may be run in a Linux virtual machine, or by using the experimental 64-bit Linux emulation support.
QEMU now has aarch64 system mode emulation support. It is available by installing the qemu-devel package or emulators/qemu-devel port.
The Release Engineers build periodic snapshots, including for arm64 on QEMU. Instructions on where to find these are sent to the snapshots mailing list.
See arm64/QEMU for further details on booting FreeBSD/arm64 in QEMU, including links to AArch64 EFI firmware files that are not included with the QEMU port.
The HiKey is a low cost (~$75 - $100 + shipping) ARMv8 board from Linaro.
The http://macchiatobin.net/MACCHIATObin series of boards is supported.
As noted by Greg at unrelenting.technology:
affordable 4-core (Cortex A72) with DDR4 (takes one full size DIMM), SATA, USB 3.0 and PCIe. There is excellent firmware support (upstream EDK2+!TrustedFirmware). However, an affordable 4-core (Cortex A72) with DDR4 (takes one full size DIMM), SATA, USB 3.0 and PCIe. However, the PCIe is rather quirky.
Raspberry Pi 3 + 4 ( RPI3 + RPI4 )
This section has moved to arm/Raspberry Pi
Cavium's ThunderX is the initial reference target platform for FreeBSD/arm64.
FreeBSD supports the ThunderX EVB (evaluation board) and CRB (customer reference board) in SMP mode (48 CPU cores). SATA drives, PCIe expansion cards, and the on-chip network interface are fully supported.
Lenovo ThinkSystem SR330/SR350
SoftIron Overdrive 1000
The FreeBSD 12.0R GENERIC (and later) memstick installation images work on the SoftIron Overdrive 1000 but requires opensolaris_load="YES" to be set in /boot/loader.conf. This can be performed at the end of installation or on first boot by typing ESC during the (likely garbled) "Beastie" boot screen, and typing:
load /boot/kernel/kernel load /boot/kernel/opensolaris.ko load /boot/kernel/zfs.ko boot
Otherwise, the first boot will hit mountroot>
Once booted, add "opensolaris_load="YES" to /boot/loader.conf with the editor of your choice.
To suppress the garbled Beastie boot screen, add beastie_disable="YES" to /boot/loader.conf
The power button is the vertical chrome rectangle on the front.
Be cautious not to frequently cut power to the OD1K as it may corrupt the firmware.
SoftIron Overdrive 3000
FreeBSD mostly works, other than the internal dual 10G networking, however support for this is being worked on. In the interim PCIe NICs work.
- Userland SDT DTrace probes (usdt) do not work
- The Cavium ThunderX vnic driver has several issues, but it's generally functional. See PRs:
- libc does not provide sbrk and some ports have not been updated to cope.
- Much profiling and performance work is still needed