Initial qemu/KVM board support

Added a new board for SLOF running on KVM/qemu.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>

1 files changed, 150 insertions, 0 deletions

diff --git a/board-qemu/slof/tree.fs b/board-qemu/slof/tree.fs
new file mode 100644
index 0000000..c2ab824
--- /dev/null
+++ b/board-qemu/slof/tree.fs
@@ -0,0 +1,150 @@
+\ *****************************************************************************
+\ * Copyright (c) 2004, 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
+\ ****************************************************************************/
+
+: strequal ( str1 len1 str2 len2 -- flag )
+  rot dup rot = IF comp 0= ELSE 2drop drop 0 THEN ; 
+
+400 cp
+
+0 value puid
+
+440 cp
+
+480 cp
+
+\ The root of the device tree and some of its kids.
+" /" find-device
+
+" QEMU" encode-string s" model" property
+
+2 encode-int s" #address-cells" property
+2 encode-int s" #size-cells" property
+
+\ Yaboot is stupid.  Without this, it can't/won't find /etc/yaboot.conf.
+s" chrp" device-type
+
+\ See 3.6.5, and the PowerPC OF binding document.
+new-device
+s" mmu" 2dup device-name device-type
+0 0 s" translations" property
+
+: open  true ;
+: close ;
+
+finish-device
+device-end
+
+4c0 cp
+
+\ Fixup timebase frequency from device-tree
+: fixup-tbfreq
+    " /cpus/@0" find-device
+    " timebase-frequency" get-node get-package-property IF
+        2drop
+    ELSE
+        decode-int to tb-frequency 2drop
+    THEN
+    device-end
+;
+fixup-tbfreq
+
+4d0 cp
+
+\ Grab rtas from qemu
+#include "rtas.fs"
+
+500 cp
+
+: populate-vios ( -- )
+    \ Populate the /vdevice children with their methods
+    \ WARNING: Quite a few SLOFisms here like get-node, set-node, ...
+
+    ." Populating /vdevice methods" cr
+    " /vdevice" find-device get-node child
+    BEGIN
+        dup 0 <>
+    WHILE
+        dup set-node
+        dup " compatible" rot get-package-property 0 = IF
+            drop dup from-cstring
+            2dup " hvterm1" strequal IF
+                " vio-hvterm.fs" included
+            THEN
+            2dup " IBM,v-scsi" strequal IF
+                " vio-vscsi.fs" included
+            THEN
+            2dup " IBM,l-lan" strequal IF
+                " vio-veth.fs" included
+            THEN
+            2drop
+       THEN
+       peer
+    REPEAT drop
+
+    device-end
+;
+
+\ Now do it
+populate-vios
+
+580 cp
+
+5a0 cp
+
+600 cp
+
+\ Add rtas cleanup last
+' rtas-quiesce add-quiesce-xt
+
+640 cp
+
+690 cp
+
+6a0 cp
+
+6a8 cp
+
+6b0 cp
+
+6b8 cp
+
+6c0 cp
+
+s" /cpus/@0" open-dev encode-int s" cpu" set-chosen
+s" /memory" open-dev encode-int s" memory" set-chosen
+
+6e0 cp
+
+700 cp
+
+\ See 3.5.
+s" /openprom" find-device
+   s" SLOF," slof-build-id here swap rmove here slof-build-id nip $cat encode-string s" model" property
+   0 0 s" relative-addressing" property
+device-end
+
+s" /aliases" find-device
+   : open  true ;
+   : close ;
+device-end
+
+s" /mmu" open-dev encode-int s" mmu" set-chosen
+
+#include "available.fs"
+
+\ Setup terminal IO
+
+#include <term-io.fs>
+
+" hvterm" find-alias IF drop
+  " hvterm" io
+THEN