virtio-pci: update virtio pci bar layout documentation

The modern io bar was never documented.

Signed-off-by: Anthoine Bourgeois <anthoine.bourgeois@gmail.com>
Message-Id: <20200422215455.10244-2-anthoine.bourgeois@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>

diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 4cb784389c5144f617bf477988cf1e4ac1330861..d028c17c240ebf8e141f4eb2dac0af9bc5958b88 100644 (file)
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1705,6 +1705,7 @@ static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp)
      *
      *   region 0   --  virtio legacy io bar
      *   region 1   --  msi-x bar
+     *   region 2   --  virtio modern io bar (off by default)
      *   region 4+5 --  virtio modern memory (64bit) bar
      *
      */