From: Chris Smart <chris@distroguy.com>
To: linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 1/2] powerpc: Send SIGBUS on unaligned copy and paste
Date: Tue, 14 Jun 2016 11:50:57 +1000 [thread overview]
Message-ID: <20160614015056.GA29205@distroguy.com> (raw)
In-Reply-To: <edaf7a67-10c9-1e18-e416-38f45e4a5192@c-s.fr>
On Thu, Jun 09, 2016 at 08:57:50AM +0200, Christophe Leroy wrote:
>
>Le 09/06/2016 à 08:01, Chris Smart a écrit :
>>Calling ISA 3.0 instructions copy, copy_first, paste and paste_last
>>generates an alignment fault when copying or pasting unaligned
>>data (128 byte). We catch this and send SIGBUS to the userspace
>>process that caused it.
>>
[snip]
>>+ if ((instruction & 0xfc0006fe) == 0x7c00060c){
>
>Can you define corresponding instruction and mask in
>arch/powerpc/include/asm/ppc-opcode.h
>and use symbolic names here instead of raw values ?
>
Yep, thanks. Will look at doing this for V2.
Cheers,
-c
prev parent reply other threads:[~2016-06-14 1:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-09 6:01 [PATCH 1/2] powerpc: Send SIGBUS on unaligned copy and paste Chris Smart
2016-06-09 6:57 ` Christophe Leroy
2016-06-14 1:50 ` Chris Smart [this message]
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