[ipxe-devel] [PATCH 3/4] [virtio] Add virtio 1.0 PCI support

[Michael S. Tsirkin]

On Wed, Mar 09, 2016 at 07:20:02PM +0100, Ladi Prosek wrote:
> @@ -151,6 +188,145 @@ static inline void vp_del_vq(unsigned int ioaddr, int queue_index)
>     outl(0, ioaddr + VIRTIO_PCI_QUEUE_PFN);
>  }
>  
> +struct vring_virtqueue;
> +
>  int vp_find_vq(unsigned int ioaddr, int queue_index,
>                 struct vring_virtqueue *vq);
> +
> +/* Virtio 1.0 I/O routines with both port I/O and memory I/O support
> + * and endianness conversions */
> +
> +static inline void vpm_iowrite8(struct virtio_pci_region *region,
> +                                u8 data, size_t offset)
> +{
> +  if (region->flags & VIRTIO_PCI_REGION_PORT) {
> +    outb(data, region->base + offset);
> +  } else {
> +    writeb(data, region->base + offset);
> +  }
> +}

Supporting config cap might also be nice.

-- 
MST