1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking Benchmarking Platform
Phoromatic Test Orchestration

AArch64/ARM64 Linux Kernel Work Still Ongoing

Linux Kernel

Published on 16 August 2012 08:49 AM EDT
Written by Michael Larabel in Linux Kernel
1 Comment

The ARMv8 64-bit architecture enablement, officially known as AArch64, is still ongoing for the Linux kernel.

Back in early July were the initial Linux kernel patches for AArch64. The initial code drop consisted of about 23,000 lines of code to enable this 64-bit ARMv8 support in Linux. More on the AArch64/ARMv8 Linux enablement was talked about last month at Debian's DebConf 12.

The AArch64 Linux kernel port wasn't merged into the Linux 3.6 kernel as some would have hoped, the code is still being touched. Catalin Marinas of ARM Holdings published the "v2" patch-set this week for the AArch64 architecture enablement. While AArch64 is what ARM prefers to officially call their 64-bit architecture, in this second version of the patches the code is now living in the "arch/arm64" directory and the architecture functions are also using the "amd64" name, per comments on the original patches that some kernel developers didn't like the "AArch64" name. However, via uname and elsewhere, this ARM 64-bit architecture will continue to be referred to as AArch64.

Aside from some AArch64 -> ARM64 renaming, NO_BOOTMEM is now enabled, mem= can be used as a kernel parameter for limiting the amount of memory rather than memory banks, support for ZONE_DMA32, a generic debconfig file is available, and there's various clean-ups and bug-fixes.

The 31 patches amounting to over 22,000 lines of new Linux kernel architecture code can be found on LKML.org. We'll see within a few months time whether the ARMv8 AArch64 kernel code will be ready for merging into the Linux 3.7 kernel.

Meanwhile, other AArch64/ARMv8 Linux work is still in progress as well such as enabling ARMv8 compiler support for GCC.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux News
  1. Mandriva Linux Was Allegedly Brought Down By Employee Lawsuits
  2. GNOME 3.17.2 Is Released As The Latest Look Towards GNOME 3.18
  3. Phoronix Turns 11 Years Old Next Week: How Should We Celebrate?
  4. Ubuntu Community Council Reaffirms Its Decision Against Kubuntu's Leader
  5. Future Plans For Changing Fedora's Installer
  6. Confusion Mounts Over Wayland's Actual License
  7. GNOME's Mutter Now Supports Drag-n-Drop To/From Wayland & X11
  8. Wine 1.7.44 Works On More 64-bit ARM Support
  9. Phoronix Test Suite 5.8 Milestone 5 Brings Near Final "Belev" Experience
  10. For AMD Users, Linux 4.2 Will Bring The New AMDGPU Driver & VCE1 For Radeon
Latest Articles & Reviews
  1. Btrfs RAID 0/1/5/6/10 Five-Disk Benchmarks On Linux 4.1
  2. Opening The Gates To Our Daily Open-Source Linux Benchmark Results
  3. The Latest Features For Linux Performance Management + Benchmark Monitoring
  4. Noctua NH-U12DX i4 + NF-F12
Most Viewed News This Week
  1. NVIDIA's Proprietary Driver Is Moving Closer With Kernel Mode-Setting
  2. Zapcc Claims To Be A "Much Faster C++ Compiler"
  3. OpenWRT 15.05 Preparing Improved Security & Better Networking
  4. Features Added To Mesa 10.6 For Open-Source GPU Drivers
  5. Ubuntu's LXD vs. KVM For The Linux Cloud
  6. Friction Building Around An Ubuntu Community Council Decision
  7. The Latest Linux Kernel Git Code Fixes The EXT4 RAID0 Corruption Problem
  8. Fedora 22 Is Being Released Next Tuesday