1 files changed, 35 insertions, 0 deletions
diff --git a/src/roms/SLOF/board-qemu/slof/virtio.fs b/src/roms/SLOF/board-qemu/slof/virtio.fs
new file mode 100644
index 0000000..818c132
--- /dev/null
+++ b/src/roms/SLOF/board-qemu/slof/virtio.fs
@@ -0,0 +1,35 @@
+\ *****************************************************************************
+\ * Copyright (c) 2011 IBM Corporation
+\ * All rights reserved.
+\ * This program and the accompanying materials
+\ * are made available under the terms of the BSD License
+\ * which accompanies this distribution, and is available at
+\ * http://www.opensource.org/licenses/bsd-license.php
+\ *
+\ * Contributors:
+\ *     IBM Corporation - initial implementation
+\ ****************************************************************************/
+
+\ This struct must match "struct virtio_device" in virtio.h!
+STRUCT
+   /n FIELD vd>base
+   /l FIELD vd>type
+CONSTANT /vd-len
+
+
+\ Initialize virtiodev structure for the current node
+: virtio-setup-vd  ( vdstruct -- )
+   >r
+   \ Does it have a "class-code" property? If yes, assume we're a PCI device
+   s" class-code" get-node get-property 0= IF
+      \ Set up for PCI device interface
+      2drop
+      s" 10 config-l@ translate-my-address 3 not AND" evaluate
+      ( io-base ) r@ vd>base !
+      0 r@ vd>type l!
+   ELSE
+      ." unsupported virtio interface!" cr
+      1 r@ vd>type l!
+   THEN
+   r> drop
+;