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Message-ID: <20140704080751.GA23379@arm.com>
Date: Fri, 4 Jul 2014 09:07:51 +0100
From: Will Deacon <will.deacon@....com>
To: Z Lim <zlim.lnx@...il.com>
Cc: Catalin Marinas <Catalin.Marinas@....com>,
"David S. Miller" <davem@...emloft.net>,
Daniel Borkmann <dborkman@...hat.com>,
Alexei Starovoitov <ast@...mgrid.com>,
Chema Gonzalez <chema@...gle.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH RFC] arm64: eBPF JIT compiler
On Fri, Jul 04, 2014 at 07:56:54AM +0100, Z Lim wrote:
> On Thu, Jul 3, 2014 at 2:14 AM, Will Deacon <will.deacon@....com> wrote:
> > Does this sound remotely feasible?
>
> So I looked at insn.c and the only overlap at this point is B/BL codegen.
> A whole lot more, e.g. arithmetic, logical, and memory ops, will need
> to be shuffled in.
Yup, the more the merrier. I just want to avoid having N subtley different
encoders/decoders, as this stuff tends to be hard to review and easy to make
small mistakes.
> Let me address Alexei's review comments and send out a v2.
> After that, I can take a stab at consolidating bpf_jit.h into
> insn.{c,h}. Sounds good to you?
Perfect.
Will
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