Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / SLOF / slof / lowmem.S

diff --git a/qemu/roms/SLOF/slof/lowmem.S b/qemu/roms/SLOF/slof/lowmem.S
new file mode 100644 (file)
index 0000000..9aaa9f7
--- /dev/null
+++ b/qemu/roms/SLOF/slof/lowmem.S
@@ -0,0 +1,69 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 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
+ *****************************************************************************/
+
+#include <cpu.h>
+#include <xvect.h>
+
+       .globl _start
+       /* All exception vectors *******************/
+_start:
+       .org 0x100
+       /* check if Master / Slave *****************/
+       /* Master will go to XVECT_M_HANDLER       */
+       /* Slave  will go to XVECT_S_HANDLER       */
+#ifdef SECONDARY_CPUS_STOPPED
+       ld      r3,XVECT_S_HANDLER(0)
+       mfspr   r0, PIR
+       cmpwi   r0, 0
+       bne     0f
+#endif
+       ld      r3,XVECT_M_HANDLER(0)
+0:
+       mtctr   r3
+       li      r0,0x100
+       bctr
+
+       /* FIXME: Also need 0280, 0380, 0f20, etc. */
+
+       .irp i, 0x0200,0x0280,0x0300,0x0380,0x0400,0x0480,0x0500,0x0600,0x0700, \
+               0x0800,0x0900,0x0a00,0x0b00,0x0c00,0x0d00,0x0e00,0x0f00, \
+               0x1000,0x1100,0x1200,0x1300,0x1400,0x1500,0x1600,0x1700, \
+               0x1800,0x1900,0x1a00,0x1b00,0x1c00,0x1d00,0x1e00,0x1f00, \
+               0x2000,0x2100,0x2200,0x2300,0x2400,0x2500,0x2600,0x2700, \
+               0x2800,0x2900,0x2a00,0x2b00,0x2c00,0x2d00,0x2e00,0x2f00
+       .org \i
+
+       /* enable this if you get exceptions before the console works    */
+       /* this will allow using the hardware debugger to see where      */
+       /* it traps, and with what register values etc.                  */
+       // b    $
+
+       mtsprg  0,r0
+       mfctr   r0
+       mtsprg  2,r0
+       mflr    r0
+       mtsprg  3,r0
+       ld      r0, XVECT_M_HANDLER(0)
+       mtctr   r0
+       li      r0,\i
+       bctr
+       .endr
+
+
+       .org XVECT_M_HANDLER
+       .quad 0
+
+       .org XVECT_S_HANDLER
+       .quad 0
+
+       .org XVECT_TOPADDR
+       .byte 0x36              # to fill out to exactly 16kB