From 44045ce9740945056a58ecb53d2af9ae00083632 Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Wed, 12 Nov 2014 22:35:33 +0100
Subject: [PATCH] PPC: mpc8554ds: Tell user about exceeding RAM limits

The mpc8544ds board only supports up to 3GB of RAM due to its limited
address space.

When the user requests more, abort and tell him that he should use less.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 hw/ppc/mpc8544ds.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hw/ppc/mpc8544ds.c b/hw/ppc/mpc8544ds.c
index f13163308e..fb74b3ff80 100644
--- a/hw/ppc/mpc8544ds.c
+++ b/hw/ppc/mpc8544ds.c
@@ -15,6 +15,7 @@
 #include "hw/boards.h"
 #include "sysemu/device_tree.h"
 #include "hw/ppc/openpic.h"
+#include "qemu/error-report.h"
 
 static void mpc8544ds_fixup_devtree(PPCE500Params *params, void *fdt)
 {
@@ -38,6 +39,11 @@ static void mpc8544ds_init(MachineState *machine)
         .spin_base = 0xEF000000ULL,
     };
 
+    if (machine->ram_size > 0xc0000000) {
+        error_report("The MPC8544DS board only supports up to 3GB of RAM");
+        exit(1);
+    }
+
     ppce500_init(machine, &params);
 }
 
-- 
2.11.4.GIT