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Re: [Qemu-devel] [PATCH 0 of 1] Fix for DOS keyboard problems

From: Stefan Ring
Subject: Re: [Qemu-devel] [PATCH 0 of 1] Fix for DOS keyboard problems
Date: Mon, 24 Aug 2009 11:27:52 +0200

On Mon, Aug 24, 2009 at 11:22 AM, Jamie Lokier<address@hidden> wrote:
> Btw, a timer won't necessarily fix the problem seen with Borland, if
> QEMU/KVM are preempted at the wrong moment - unless there's a virtual
> CPU timer available which is not affected by host scheduling.

That's what I thought. Bochs uses a virtual CPU timer but that's easy
to do in Bochs because everything is emulated. I suppose the same
could be done with QEMU for 16 bit mode because everything is emulated
as well, AFAIK. The more native 32 bit modes would be much more
difficult or almost impossible, though. And it would not be good to
have port 60h behave differently in 16 bit mode vs. 32 bit mode.

Just some random thoughts...

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