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+\ *****************************************************************************
+\ * 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
+
+\ The root of the device tree and some of its kids.
+" /" find-device
+
+\ The following properties have been provided by the FDT from QEMU already,
+\ so we do not have to create them on our own:
+
+\ " QEMU" encode-string s" model" property
+\ 2 encode-int s" #address-cells" property
+\ 2 encode-int s" #size-cells" property
+\ s" chrp" device-type
+
+480 cp
+
+\ 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
+
+include fbuffer.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
+ 2dup " qemu,spapr-nvram" strequal IF
+ " rtas-nvram.fs" included
+ THEN
+ 2drop
+ THEN
+ peer
+ REPEAT drop
+
+ device-end
+;
+
+\ Now do it
+populate-vios
+
+580 cp
+
+5a0 cp
+
+#include "pci-scan.fs"
+
+: populate-pci-busses ( -- )
+ \ Populate the /pci* children with their methods
+ " /" find-device get-node child
+ BEGIN
+ dup 0 <>
+ WHILE
+ dup set-node
+ dup " name" rot get-package-property 0 = IF
+ drop dup from-cstring
+ 2dup s" pci" strequal IF
+ s" pci-phb.fs" included
+ THEN
+ 2drop
+ THEN
+ peer
+ REPEAT drop
+
+ device-end
+;
+
+populate-pci-busses
+
+600 cp
+
+: check-patch-kernel-sc1 ( -- )
+ \ At this point we can try our best to patch the kernel. This function
+ \ gets called from the "quiesce" call that kernels execute before they
+ \ take over the system.
+ \
+ \ Here we know that ciregs->r4 contains the return address that gets us
+ \ back into enter_prom inside the guest kernel.
+ \ We assume that within a range of +- 16MB of that pointer all sc 1
+ \ instructions inside of that kernel reside.
+
+ \ test_ins (instruction that tells us the kernel's endianness; we use the
+ \ return address back into the kernel here.)
+ ciregs >r4 @
+ \ test_ins + 16MB (end of search range)
+ dup 1000000 +
+ \ MAX(test_ins - 16MB, 0) (start of search range)
+ dup 2000000 < IF 0 ELSE dup 2000000 - THEN
+ swap
+ check-and-patch-sc1
+;
+
+\ Add sc 1 patching
+' check-patch-kernel-sc1 add-quiesce-xt
+
+\ 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@0" 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>
+
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