Re: [discuss] [PATCH 1/3] x86_64: additions to the i386 alternative extensions to support x86_64 architecture

From: Andi Kleen
Date: Mon Feb 19 2007 - 16:29:51 EST

On Monday 19 February 2007 20:07, Joerg Roedel wrote:
> From: Joerg Roedel <joerg.roedel@xxxxxxx>
> This patch adds the necessary changes to extend the i386 alternative
> instruction framework extension on the x86_64 architecture.

Looks complicated and somewhat fragile.

I think I would prefer it if you changed the pad field to a "bit not set"
cpuid field. Then at least 2 alternatives + a nothing alternative could
be described too.

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