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[Qemu-devel] Re: Problem with DOS application and 286 DOS Extender appli
From: |
Jamie Lokier |
Subject: |
[Qemu-devel] Re: Problem with DOS application and 286 DOS Extender application |
Date: |
Wed, 14 Apr 2010 11:23:34 +0100 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
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