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From: Alexander Graf <agraf@suse.de>
To: Doug Kwan <dougkwan@google.com>
Cc: riku.voipio@iki.fi, qemu-ppc@nongnu.org, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 2/3] PPC: Allow little-endian user mode.
Date: Thu, 08 May 2014 10:39:17 +0200	[thread overview]
Message-ID: <536B42B5.5040300@suse.de> (raw)
In-Reply-To: <1399537603-6905-3-git-send-email-dougkwan@google.com>

On 05/08/2014 10:26 AM, Doug Kwan wrote:
> This all running PPC64 little-endian in user mode if target is configured
> that way.  In PPC64 LE user mode we set MSR.LE during initialization.
> Byteswapping logic is reversed also when QEMU is running in that mode.
>
> Signed-off-by: Doug Kwan <dougkwan@google.com>

I can't say I'm a huge fan of this patch. It allows for really tricky 
subtile mistakes to happen. Can't we leave the target mode configured on 
big endian?


Alex

  reply	other threads:[~2014-05-08  8:39 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-08  8:26 [Qemu-devel] [PATCH 0/3] Adding new user mode target ppc64el-linux-user Doug Kwan
2014-05-08  8:26 ` [Qemu-devel] [PATCH 1/3] linux-user: Handle ELFv2 PPC64 binaries in user mode Doug Kwan
2014-05-08  8:36   ` Alexander Graf
2014-05-08  8:43     ` Doug Kwan (關振德)
2014-05-08  8:45       ` Alexander Graf
2014-05-08 13:30       ` Ulrich Weigand
2014-05-08  8:26 ` [Qemu-devel] [PATCH 2/3] PPC: Allow little-endian " Doug Kwan
2014-05-08  8:39   ` Alexander Graf [this message]
2014-05-08  8:49     ` Doug Kwan (關振德)
2014-05-08  8:55       ` Alexander Graf
2014-05-08  9:05         ` Doug Kwan (關振德)
2014-05-08  9:11           ` Alexander Graf
2014-05-08  9:24             ` Doug Kwan (關振德)
2014-05-08 12:39     ` Peter Maydell
2014-05-08 12:44       ` Alexander Graf
2014-05-08  8:26 ` [Qemu-devel] [PATCH 3/3] configure: Add new target ppc64el-linux-user Doug Kwan
2014-05-08  8:41   ` Alexander Graf
2014-05-08  8:46     ` Doug Kwan (關振德)
2014-05-08  8:56       ` Alexander Graf
2014-05-08  9:09         ` Doug Kwan (關振德)
2014-05-08 12:18   ` Andreas Färber
2014-05-08 12:28     ` Peter Maydell
2014-05-08 12:45       ` Alexander Graf
2014-05-08 15:57       ` Doug Kwan (關振德)
2014-05-08 14:41   ` Tom Musta
2014-05-08 15:19     ` Doug Kwan (關振德)
2014-05-08 15:25       ` Peter Maydell
2014-05-08 15:32         ` Doug Kwan (關振德)
2014-05-08 15:41           ` Peter Maydell
2014-05-08 15:51             ` Doug Kwan (關振德)
2014-05-08 15:56               ` Peter Maydell
2014-05-08 15:39         ` Tom Musta
2014-05-08 15:43           ` Peter Maydell

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