Re: [PATCH 3/3] virtio: mmio: access configuration space as little-endian

Pawel Moll
2013-10-14T08:44:49Z

On Fri, 2013-10-11 at 15:36 +0100, Marc Zyngier wrote:
> virtio_mmio defines the config space to be little-endian.

This is not exactly true. The configuration *registers* (magic value,
queue selector etc.) are always LE, yes. The configuration *space* (the
free-form stuff starting at 0x100) is still guest-endian.

The spec-in-works makes everything LE and the driver will most likely
get accessors for the config space. Rusty had a go at this a while ago:

http://thread.gmane.org/gmane.linux.kernel.virtualization/19397

Paweł