From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gerd Hoffmann <kraxel@redhat.com>
Subject: Re: [PATCHv3] virtio-spec: 64 bit features, used/avail event, fixes
Date: Thu, 04 Aug 2011 09:55:13 +0200
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References: <20110601102548.GA11013@redhat.com> <87ei3dxas0.fsf@rustcorp.com.au> <20110803160518.GA16563@redhat.com> <4E397425.90808@redhat.com> <20110803163923.GA17244@redhat.com>
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Cc: Rusty Russell <rusty@rustcorp.com.au>,
	virtualization@lists.linux-foundation.org,
	habanero@linux.vnet.ibm.com, Shirley Ma <mashirle@us.ibm.com>,
	Krishna Kumar2 <krkumar2@in.ibm.com>, kvm@vger.kernel.org,
	steved@us.ibm.com, Tom Lendacky <tahm@linux.vnet.ibm.com>,
	borntraeger@de.ibm.com, avi@redhat.com,
	bryanv@daemoninthecloset.org
To: "Michael S. Tsirkin" <mst@redhat.com>
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   Hi,

> Hmm, wait, we could go 32 bit, then we are not limited to 32
> bridges anymore, right? Does our bios support that?

How you want go to 32bit? io space (not mmio) is fixed at 16bit in x86, 
isn't it?

cheers,
   Gerd