--- cloudinit/util.py.orig
+++ cloudinit/util.py
@@ -2337,7 +2337,7 @@ def read_dmi_data(key):
 
     # running dmidecode can be problematic on some arches (LP: #1243287)
     uname_arch = os.uname()[4]
-    if uname_arch.startswith("arm") or uname_arch == "aarch64":
+    if uname_arch.startswith("arm") or uname_arch.startswith("ppc"):
         LOG.debug("dmidata is not supported on %s", uname_arch)
         return None
 
--- tests/unittests/test_util.py.orig
+++ tests/unittests/test_util.py
@@ -384,7 +384,7 @@ class TestReadDMIData(helpers.Filesystem
         dmi_name = 'use-dmidecode'
         self._configure_dmidecode_return(dmi_name, dmi_val)
 
-        expected = {'armel': None, 'aarch64': None, 'x86_64': dmi_val}
+        expected = {'armel': None, 'aarch64': dmi_val, 'x86_64': dmi_val}
         found = {}
         # we do not run the 'dmi-decode' binary on some arches
         # verify that anything requested that is not in the sysfs dir