From: "Aurélien Jarno" <aurelien@aurel32.net>
To: "Hervé Poussineau" <hpoussin@reactos.org>
Cc: qemu-devel@nongnu.org, "Stefan Weil" <sw@weilnetz.de>,
"Jan Kiszka" <jan.kiszka@siemens.com>,
"Andreas Färber" <afaerber@suse.de>,
"Peter Maydell" <peter.maydell@linaro.org>
Subject: Re: [Qemu-devel] [PATCH for-1.6] target-mips: do not raise exceptions when accessing invalid memory
Date: Mon, 5 Aug 2013 16:07:44 +0200 [thread overview]
Message-ID: <20130805140744.GF4193@ohm.aurel32.net> (raw)
In-Reply-To: <51FFAE44.4000205@reactos.org>
On Mon, Aug 05, 2013 at 03:53:08PM +0200, Hervé Poussineau wrote:
> Andreas Färber a écrit :
> >>>[snip]
> >>>
> >>>Have you tested Jan's patches limiting the new unassigned read value -1
> >>>to PIO?
> >>>
> >>I have tried this patches, and they don't fix the problem.
> >
> >Too bad. So what do you propose? Restoring #ifdef and using
> >empty_slot_init() have been suggested so far, any other concrete ideas?
>
> Another idea (not tested): override the
> CPUClass->do_unassigned_level on board level, to only raise IBE and
> no DBE.
> That way, right behaviour is kept in global code, and "bad" code is
> only at board level, where it can be removed later board after
> board.
The problem is that it looks like the code is not "bad". It seems that
real hardware just ignore such accesses, so this should stay forever.
--
Aurelien Jarno GPG: 1024D/F1BCDB73
aurelien@aurel32.net http://www.aurel32.net
next prev parent reply other threads:[~2013-08-05 14:08 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-27 16:18 [Qemu-devel] [PATCH for-1.6] target-mips: do not raise exceptions when accessing invalid memory Hervé Poussineau
2013-07-27 16:49 ` Andreas Färber
2013-07-27 17:43 ` Peter Maydell
2013-07-27 19:37 ` Stefan Weil
2013-07-27 20:43 ` Andreas Färber
2013-07-27 20:57 ` Peter Maydell
2013-07-27 20:58 ` Stefan Weil
2013-07-29 20:35 ` Stefan Weil
2013-08-04 22:04 ` Aurélien Jarno
2013-08-04 22:37 ` Peter Maydell
2013-08-05 5:19 ` Stefan Weil
2013-08-05 12:27 ` Aurélien Jarno
2013-08-05 8:45 ` Andreas Färber
2013-08-05 8:47 ` Jan Kiszka
2013-08-05 13:31 ` Aurélien Jarno
2013-08-05 13:45 ` Andreas Färber
2013-08-05 13:53 ` Hervé Poussineau
2013-08-05 14:07 ` Aurélien Jarno [this message]
2013-08-05 14:15 ` Peter Maydell
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