Report unmapped addresses in memory_dump (Jan Kiszka)

Instead of dumping incorrect (ie. previously read) data, report the
invalid virtual address to the user.

Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5023 c046a42c-6fe2-441c-8c8c-71466251a162

monitor.c

diff --git a/monitor.c b/monitor.c
index 23b527e..0a3027c 100644
--- a/monitor.c
+++ b/monitor.c
@@ -596,7 +596,10 @@
             env = mon_get_cpu();
             if (!env)
                 break;
-            cpu_memory_rw_debug(env, addr, buf, l, 0);
+            if (cpu_memory_rw_debug(env, addr, buf, l, 0) < 0) {
+                term_printf(" Cannot access memory\n");
+                break;
+            }
         }
         i = 0;
         while (i < l) {