diff --git a/yocto-poky/meta/classes/qemu.bbclass b/yocto-poky/meta/classes/qemu.bbclass
index 601f587..75739db 100644
--- a/yocto-poky/meta/classes/qemu.bbclass
+++ b/yocto-poky/meta/classes/qemu.bbclass
@@ -13,7 +13,19 @@
         target_arch = "ppc64"
 
     return "qemu-" + target_arch
-#
+
+def qemu_wrapper_cmdline(data, rootfs_path, library_paths):
+    import string
+
+    qemu_binary = qemu_target_binary(data)
+    if qemu_binary == "qemu-allarch":
+        qemu_binary = "qemuwrapper"
+
+    qemu_options = data.getVar("QEMU_OPTIONS", True)    
+
+    return "PSEUDO_UNLOAD=1 " + qemu_binary + " " + qemu_options + " -L " + rootfs_path\
+            + " -E LD_LIBRARY_PATH=" + ":".join(library_paths) + " "
+
 # Next function will return a string containing the command that is needed to
 # to run a certain binary through qemu. For example, in order to make a certain
 # postinstall scriptlet run at do_rootfs time and running the postinstall is
@@ -23,29 +35,25 @@
 # ${@qemu_run_binary(d, '$D', '/usr/bin/test_app')} [test_app arguments]
 #
 def qemu_run_binary(data, rootfs_path, binary):
-    qemu_binary = qemu_target_binary(data)
-    if qemu_binary == "qemu-allarch":
-        qemu_binary = "qemuwrapper"
-
     libdir = rootfs_path + data.getVar("libdir", False)
     base_libdir = rootfs_path + data.getVar("base_libdir", False)
-    qemu_options = data.getVar("QEMU_OPTIONS", True)
 
-    return "PSEUDO_UNLOAD=1 " + qemu_binary + " " + qemu_options + " -L " + rootfs_path\
-            + " -E LD_LIBRARY_PATH=" + libdir + ":" + base_libdir + " "\
-            + rootfs_path + binary
+    return qemu_wrapper_cmdline(data, rootfs_path, [libdir, base_libdir]) + rootfs_path + binary
 
-# QEMU_EXTRAOPTIONS is not meant to be directly used, the extensions are 
-# PACKAGE_ARCH, not overrides and hence have to do this dance. Simply being arch 
-# specific isn't good enough.
+# QEMU_EXTRAOPTIONS is not meant to be directly used, the extensions are
+# PACKAGE_ARCH, *NOT* overrides.
+# In some cases (e.g. ppc) simply being arch specific (apparently) isn't good
+# enough and a PACKAGE_ARCH specific -cpu option is needed (hence we have to do
+# this dance). For others (e.g. arm) a -cpu option is not necessary, since the
+# qemu-arm default CPU supports all required architecture levels.
+
 QEMU_OPTIONS = "-r ${OLDEST_KERNEL} ${@d.getVar("QEMU_EXTRAOPTIONS_%s" % d.getVar('PACKAGE_ARCH', True), True) or ""}"
-QEMU_EXTRAOPTIONS_iwmmxt    = " -cpu pxa270-c5"
-QEMU_EXTRAOPTIONS_armv6     = " -cpu arm1136"
-QEMU_EXTRAOPTIONS_armv7a    = " -cpu cortex-a8"
-QEMU_EXTRAOPTIONS_e500v2    = " -cpu e500v2"
-QEMU_EXTRAOPTIONS_e500mc    = " -cpu e500mc"
-QEMU_EXTRAOPTIONS_e5500     = " -cpu e5500"
-QEMU_EXTRAOPTIONS_e5500-64b = " -cpu e5500"
-QEMU_EXTRAOPTIONS_e6500     = " -cpu e6500"
-QEMU_EXTRAOPTIONS_e6500-64b = " -cpu e6500"
-QEMU_EXTRAOPTIONS_ppc7400   = " -cpu 7400"
+QEMU_OPTIONS[vardeps] += "QEMU_EXTRAOPTIONS_${PACKAGE_ARCH}"
+
+QEMU_EXTRAOPTIONS_ppce500v2 = " -cpu e500v2"
+QEMU_EXTRAOPTIONS_ppce500mc = " -cpu e500mc"
+QEMU_EXTRAOPTIONS_ppce5500 = " -cpu e500mc"
+QEMU_EXTRAOPTIONS_ppc64e5500 = " -cpu e500mc"
+QEMU_EXTRAOPTIONS_ppce6500 = " -cpu e500mc"
+QEMU_EXTRAOPTIONS_ppc64e6500 = " -cpu e500mc"
+QEMU_EXTRAOPTIONS_ppc7400 = " -cpu 7400"