From: Jamie Lokier <jamie@shareable.org>
To: Jan Kiszka <jan.kiszka@web.de>
Cc: Gerhard Wiesinger <lists@wiesinger.com>,
qemu-devel@nongnu.org, Roy Tam <roytam@gmail.com>
Subject: [Qemu-devel] Re: Problem with DOS application and 286 DOS Extender application
Date: Wed, 14 Apr 2010 11:23:34 +0100 [thread overview]
Message-ID: <20100414102334.GA8693@shareable.org> (raw)
In-Reply-To: <4BC57515.3030009@web.de>
Jan Kiszka wrote:
> In some scenarios, we use QEMU in emulation mode for such a legacy guest
> (16-bit protected mode), but we mostly run it in KVM mode these days. It
> works fairly well under QEMU, but also we did not explore all corner cases.
I'm glad too see it's alive and well then :-)
> > Or it may be the "reset using keyboard controller and BIOS" method
> > used to switch from protected mode to real mode on a 286 is not
> > implemented properly, or is not supported by the BIOS properly.
I mentioned that because of a discussion just a few months ago about a
BIOS change which might have affected those transitions.
Plus the default BIOS recently got changed from Bochs BIOS to SeaBIOS.
-- Jamie
next prev parent reply other threads:[~2010-04-14 10:23 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-12 18:50 [Qemu-devel] Problem with DOS application and 286 DOS Extender application Gerhard Wiesinger
2010-04-13 5:43 ` Roy Tam
2010-04-13 19:32 ` Gerhard Wiesinger
2010-04-13 23:20 ` Jamie Lokier
2010-04-14 7:56 ` [Qemu-devel] " Jan Kiszka
2010-04-14 10:23 ` Jamie Lokier [this message]
2011-02-13 14:06 ` Gerhard Wiesinger
2011-02-13 14:43 ` Kevin O'Connor
2011-02-14 15:02 ` Kevin O'Connor
2010-04-14 17:48 ` [Qemu-devel] " Gerhard Wiesinger
2010-04-19 19:00 ` Gerhard Wiesinger
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