commit b0fb84236da4a36a852010b6b5d5d3ca497a2b68
author Alexander Graf <agraf@suse.de> Thu Jun 02 13:53:40 2011 +0200
committer Alexander Graf <agraf@suse.de> Fri Jun 17 02:58:23 2011 +0200
tree 870571337a99ee5de81c8150a641b49f80a27bd0
parent eb47d7c5d96060040931c42773ee07e61e547af9

PPC: E500: Implement reboot controller

When Linux reboots an e500 VM, it writes to a magic register in the
"global-utilities" device indicated by the device tree. We were not
emulating that device so far, rendering the VM reboot-less.

This patch implements that device with only the reboot functionality
implemented and adds it to the device tree. With this patch applied,
I can successfully reboot a -M mpc8544ds VM.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Andreas Färber <andreas.faerber@web.de>

hw/ppce500_mpc8544ds.c

diff --git a/hw/ppce500_mpc8544ds.c b/hw/ppce500_mpc8544ds.c
index 6b57fbf..3ba8e75 100644
--- a/hw/ppce500_mpc8544ds.c
+++ b/hw/ppce500_mpc8544ds.c
@@ -50,6 +50,7 @@
 #define MPC8544_PCI_REGS_SIZE      0x1000
 #define MPC8544_PCI_IO             0xE1000000
 #define MPC8544_PCI_IOLEN          0x10000
+#define MPC8544_UTIL_BASE          (MPC8544_CCSRBAR_BASE + 0xe0000)
 
 struct boot_info
 {
@@ -270,6 +271,9 @@
                        serial_hds[0], 1, 1);
     }
 
+    /* General Utility device */
+    sysbus_create_simple("mpc8544-guts", MPC8544_UTIL_BASE, NULL);
+
     /* PCI */
     dev = sysbus_create_varargs("e500-pcihost", MPC8544_PCI_REGS_BASE,
                                 mpic[pci_irq_nrs[0]], mpic[pci_irq_nrs[1]],