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Date: Wed, 02 May 2012 13:56:05 +0200
From: Christian Borntraeger <borntraeger@de.ibm.com>
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Subject: Re: [Qemu-devel] [PATCH 2/3] geometry detection: use HDIO_GETGEO
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To: Alexander Graf <agraf@suse.de>
Cc: Heinz Graalfs <graalfs@linux.vnet.ibm.com>, qemu-devel <qemu-devel@nongnu.org>, Jens Freimann <jfrei@linux.vnet.ibm.com>, Cornelia Huck <cornelia.huck@de.ibm.com>, Paolo Bonzini <pbonzini@redhat.com>, Einar Lueck <elelueck@de.ibm.com>

> As hinted in my other mail, I think the way to go would be to give a hint to the geometry code that we're running on a DASD disk..

Just as an idea if we are going that path, 
we might use the BIODASDINFO2 or DASDAPIVER ioctls in qemu to detect if that is a dasd.

Christian