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[Qemu-devel] Re: qdev: Some ISA devices don't handle second instantiatio


From: Richard W.M. Jones
Subject: [Qemu-devel] Re: qdev: Some ISA devices don't handle second instantiation gracefully (was: isa-applesmc doesn't handle second instantiation gracefully)
Date: Wed, 13 Oct 2010 13:47:38 +0100
User-agent: Mutt/1.5.20 (2009-12-10)

On Tue, Oct 12, 2010 at 03:00:13PM +0200, Markus Armbruster wrote:
> Markus Armbruster <address@hidden> writes:
> 
> > When I try -device isa-applesmc -device isa-applesmc, I get
> >
> >     WARNING: Using AppleSMC with invalid key
> >     qemu: hardware error: register_ioport_read: invalid opaque
> >     [...]
> >
> > and a core dump.
> >
> > I know nothing about this device.  Instantiating twice may well make no
> > sense.  But hw_error() is not a nice way to reject a command line
> > option.
> 
> Actually, ib700 and isa-debugcon fail the same way.

I will just comment that ib700 should not be instantiated twice.  It
lives at a fixed IO address, so it wouldn't make sense even for a real
machine (nevermind that having two watchdogs would be useless).

Rich.

-- 
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