lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Thu, 03 Jul 2014 11:23:14 +0200
From:	Daniel Borkmann <>
To:	Will Deacon <>
CC:	Zi Shen Lim <>,
	Catalin Marinas <>,
	"David S. Miller" <>,
	Alexei Starovoitov <>,
	Chema Gonzalez <>,
	"" <>,
	"" <>
Subject: Re: [PATCH RFC] arm64: eBPF JIT compiler

On 07/03/2014 11:14 AM, Will Deacon wrote:
> On Wed, Jul 02, 2014 at 06:20:24AM +0100, Zi Shen Lim wrote:
>> The JIT compiler emits A64 instructions. It supports eBPF only.
>> Legacy BPF is supported thanks to conversion by BPF core.
>> JIT is enabled in the same way as for other architectures:
>>          echo 1 > /proc/sys/net/core/bpf_jit_enable
>> Or for additional compiler output:
>>          echo 2 > /proc/sys/net/core/bpf_jit_enable
>> See Documentation/networking/filter.txt for more information.
>> The implementation passes all 57 tests in lib/test_bpf.c
>> on ARMv8 Foundation Model :)
> First off, this is really cool. Thanks for putting in the effort to get this
> supported on arm64! I'm happy to run tests on some real hardware if you tell
> me how to run them :)

We have lib/test_bpf.c for this, see also Documentation/networking/filter.txt.

So, the procedure would be, e.g.:

  1) echo 1 > /proc/sys/net/core/bpf_jit_enable
  2) modprobe/insmod test_bpf
  3) See kernel log for passes/fails

For seccomp/BPF, there's a test suite in:
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists