From: Michael Walle <michael@walle.cc>
To: Jan Kiszka <jan.kiszka@web.de>
Cc: qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: Commit 9c9bb6c89d4 breaks code execution from flash
Date: Fri, 7 May 2010 22:57:57 +0200 [thread overview]
Message-ID: <201005072257.57198.michael@walle.cc> (raw)
In-Reply-To: <4BD14B05.3050301@web.de>
[sorry didn't see the CC to the mailinglist]
Am Friday 23 April 2010 09:23:49 schrieb Jan Kiszka:
> Michael Walle wrote:
> > Hi Jan,
> >
> > your commit "Optimize consecutive CFI02 writes by remapping memory
> > lazily" breaks the code execution from flash.
> >
> > If you write to the flash, the flash will switch into I/O mode. Now if
> > code is executed from this flash, a cpu_abort will be raised ("Trying to
> > execute code outside RAM or ROM").
>
> Hmm, guess I didn't test execute-in-place back then. Do you happen to
> have a test case for this scenario? I'll look into this.
Only for my qemu-lm32 port.. But reading the flash id, while executing this
code from flash should trigger the bug.
--
michael
next prev parent reply other threads:[~2010-05-07 20:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-22 21:38 [Qemu-devel] Commit 9c9bb6c89d4 breaks code execution from flash Michael Walle
2010-04-23 7:23 ` [Qemu-devel] " Jan Kiszka
2010-05-07 20:57 ` Michael Walle [this message]
2010-05-12 7:56 ` Jan Kiszka
2010-05-12 23:02 ` Michael Walle
2010-05-13 7:38 ` Jan Kiszka
2010-05-13 10:58 ` Michael Walle
2010-05-13 11:46 ` Jan Kiszka
2010-05-13 11:57 ` Jan Kiszka
2010-05-13 12:38 ` Jan Kiszka
2010-05-13 13:51 ` Michael Walle
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