linux-kernel - Re: [PATCH 1/2] x86, crypto, Generate .byte code for some new instructions via gas macro

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Message-ID: <20091108105619.GF11372@elte.hu>
Date:	Sun, 8 Nov 2009 11:56:19 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	Huang Ying <ying.huang@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>
Subject: Re: [PATCH 1/2] x86, crypto, Generate .byte code for some new
 instructions via gas macro


* H. Peter Anvin <hpa@...or.com> wrote:

> On 11/05/2009 06:23 AM, Herbert Xu wrote:
> > On Thu, Nov 05, 2009 at 02:44:15PM +0800, Huang Ying wrote:
> >> It will take some time for binutils (gas) to support some newly added
> >> instructions, such as SSE4.1 instructions or the AES-NI instructions
> >> found in upcoming Intel CPU.
> >>
> >> To make the source code can be compiled by old binutils, .byte code is
> >> used instead of the assembly instruction. But the readability and
> >> flexibility of raw .byte code is not good.
> >>
> >> This patch solves the issue of raw .byte code via generating it via
> >> assembly instruction like gas macro. The syntax is as close as
> >> possible to real assembly instruction.
> >>
> >> Some helper macros such as MODRM is not a full feature
> >> implementation. It can be extended when necessary.
> >>
> >> Signed-off-by: Huang Ying <ying.huang@...el.com>
> > 
> > Once Ingo acks this I'll throw it into cryptodev.
> > 
> 
> I'm not Ingo, but:
> 
> Acked-by: H. Peter Anvin <hpa@...or.com>

Fine to me too and for future variations thereof.

	Ingo
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