Re: [Qemu-devel] [PATCH 02/18] virtio: run drivers in 32bit mode

[Paolo Bonzini]

On 29/06/2015 10:53, Gerd Hoffmann wrote:
> virtio version 1.0 registers can (and actually do in the qemu
> implementation) live in mmio space.  So we must run the blk and
> scsi virtio drivers in 32bit mode, otherwise we can't access them.
> 
> This also allows to drop a bunch of GET_LOWFLAT calls from the virtio
> code in the following patches.

This isn't really necessary though.  The config access capability exists
for this reason.  At least as a follow up it would be nice to add a switch.

Paolo