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From: Ingo Oeser <ioe-lkml@axxeo.de>
To: David Gibson <david@gibson.dropbear.id.au>
Cc: Andrew Morton <akpm@osdl.org>, Anton Blanchard <anton@samba.org>,
	Paul Mackerras <paulus@samba.org>,
	linuxppc64-dev@lists.linuxppc.org, linux-kernel@vger.kernel.org
Subject: Re: [PPC64] Allow emulation of mfpvr on ppc64 kernel
Date: Thu, 10 Mar 2005 23:17:03 +0100	[thread overview]
Message-ID: <200503102317.04027.ioe-lkml@axxeo.de> (raw)
In-Reply-To: <20050310021848.GD30435@localhost.localdomain>

David Gibson wrote:
> Andrew, please apply.
>
> Allow userspace programs on ppc64 to use the (privileged) mfpvr
> instruction to determine the processor type.  At the moment it
> emulates the instruction to provide the real PVR value, though it
> could be made to lie in future if for some reason we wish to restrict
> what CPU features userspace uses.

Why not putting the required information into the AUX table
when executing your ELF programs? I loved this feature in the
ix86 arch.


Regards

Ingo Oeser


  reply	other threads:[~2005-03-10 22:20 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-10  2:18 David Gibson
2005-03-10 22:17 ` Ingo Oeser [this message]
2005-03-11  0:11   ` David Gibson
2005-03-11  2:34   ` Paul Mackerras

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