From: Dan Malek <dan@embeddededge.com>
To: Kumar Gala <galak@freescale.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] ppc32: Fix alignment exception checking on load/store multiple instructions
Date: Tue, 12 Apr 2005 10:46:29 -0400 [thread overview]
Message-ID: <83a359bdf2c4d4902f58e6788c37811a@embeddededge.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0504120101210.10781@blarg.somerset.sps.mot.com>
On Apr 12, 2005, at 2:03 AM, Kumar Gala wrote:
> The handling of misaligned load/store multiplies did not check to see
> if
> the address were ok to access before __{get,put}_user().
I think we should also take the opportunity to fix up the lawrx
case and look for other reserved/conditional instructions
that may slip through. Since these are atomic operations, we
can't emulate them. According to the PEM, an alignment fault
on these is a fatal programming error.
Thanks.
-- Dan
next prev parent reply other threads:[~2005-04-12 14:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-12 6:03 [PATCH] ppc32: Fix alignment exception checking on load/store multiple instructions Kumar Gala
2005-04-12 14:46 ` Dan Malek [this message]
2005-04-12 15:06 ` Kumar Gala
2005-04-12 15:26 ` Kumar Gala
2005-04-12 16:20 ` Dan Malek
2005-04-12 15:31 ` Dan Malek
2005-04-19 14:50 ` Kumar Gala
2005-04-20 1:26 ` Paul Mackerras
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