netdev - Re: [PATCH v3] ARM: net: JIT compiler for packet filters

lists.openwall.net		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 linux-hardening linux-cve-announce 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]

Message-ID: <4EFB3B06.1090203@gmail.com>
Date:	Wed, 28 Dec 2011 16:51:34 +0100
From:	Mircea Gherzan <mgherzan@...il.com>
To:	David Miller <davem@...emloft.net>
CC:	linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
	linux@....linux.org.uk
Subject: Re: [PATCH v3] ARM: net: JIT compiler for packet filters

Am 20.12.2011 19:55, schrieb David Miller:
> From: Mircea Gherzan<mgherzan@...il.com>
> Date: Tue, 20 Dec 2011 19:04:23 +0100
>
>> Based of Matt Evans's PPC64 implementation.
>>
>> The compiler generates ARM instructions but interworking is
>> supported for Thumb2 kernels.
>>
>> Supports both little and big endian. Unaligned loads are emitted
>> for ARMv6+. Not all the BPF opcodes that deal with ancillary data
>> are supported. The scratch memory of the filter lives on the stack.
>> Hardware integer division is used if it is available.
>>
>> Enabled in the same way as for x86-64 and PPC64:
>>
>> 	echo 1>  /proc/sys/net/core/bpf_jit_enable
>>
>> A value greater than 1 enables opcode output.
>>
>> Signed-off-by: Mircea Gherzan<mgherzan@...il.com>
>
> I'm happy with this going in via the ARM tree once all the details
> are worked out:

I do not really care that much about the tree where this is going, as 
long as it gets into 3.3 :) If you want to take it via the -net tree, 
please synchronize with Russell (I've uploaded the patch to his tracking 
system [1]).

Thanks,
Mircea

[1] http://www.arm.linux.org.uk/developer/patche/viewpatch.php?id=7259/1

> Acked-by: David S. Miller<davem@...emloft.net>


--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html