[SeaBIOS] [PATCH v2 02/22] virtio: run drivers in 32bit mode

Kevin O'Connor kevin at koconnor.net
Tue Jun 30 16:36:29 CEST 2015

On Tue, Jun 30, 2015 at 10:38:53AM +0200, 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.

I think this patch is missing a "if (!MODESEGMENT)" check in
src/hw/blockcmd.c - otherwise the virtio scsi code will still be
included in the 16bit section.

Also, this patch (or a follow up patch) should update the Makefile to
not compile the virtio code in 16bit mode.


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