From: Peter Maydell <peter.maydell@linaro.org>
To: yuyeon.oh@samsung.com
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH] target-arm: fix LDMIA bug on page boundary
Date: Tue, 26 Apr 2011 18:17:14 +0100 [thread overview]
Message-ID: <BANLkTi=2PFyhd-nnMg6xaE15iNOY6BeU1w@mail.gmail.com> (raw)
In-Reply-To: <18082259.13471303694638277.JavaMail.weblogic@epv6ml05>
On 25 April 2011 02:23, YuYeon Oh <yuyeon.oh@samsung.com> wrote:
> target-arm: fix LDMIA bug on page boundary
(You don't need to repeat the Subject summary line in the body, it makes the
git changelog look a bit odd when the patch is applied with 'git am').
> When consecutive memory locations are on page boundary, a base register may be
> loaded before page fault occurs. After page fault handling, it losts the memory
> location information. To solve this problem, loading a base register has to put back.
>
> Signed-off-by: Yuyeon Oh <yuyeon.oh@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
I've tested this and confirmed that it fixes this bug for the
Thumb T2 encoding. However, the same problem still exists for the
T1 (16 bit) encoding; I'll send a patch for that in a moment.
(The ARM encoding did not have this bug.)
-- PMM
next prev parent reply other threads:[~2011-04-26 17:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-25 1:23 [Qemu-devel] [PATCH] target-arm: fix LDMIA bug on page boundary YuYeon Oh
2011-04-26 17:17 ` Peter Maydell [this message]
2011-04-27 18:18 ` Aurelien Jarno
-- strict thread matches above, loose matches on Subject: below --
2011-04-25 1:19 YuYeon Oh
2011-04-24 14:47 오유연
2011-04-24 15:25 ` Peter Maydell
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