1 files changed, 13 insertions, 0 deletions
diff --git a/util/cpt_upgraders/arm-contextidr-el2.py b/util/cpt_upgraders/arm-contextidr-el2.py
new file mode 100644
index 000000000..9910ded78
--- /dev/null
+++ b/util/cpt_upgraders/arm-contextidr-el2.py
@@ -0,0 +1,13 @@
+# Add the ARM CONTEXTIDR_EL2 miscreg.
+def upgrader(cpt):
+    if cpt.get('root','isa') == 'arm':
+        for sec in cpt.sections():
+            import re
+            # Search for all ISA sections
+            if re.search('.*sys.*\.cpu.*\.isa$', sec):
+                miscRegs = cpt.get(sec, 'miscRegs').split()
+                # CONTEXTIDR_EL2 defaults to 0b11111100000000000001
+                miscRegs[599:599] = [0xFC001]
+                cpt.set(sec, 'miscRegs', ' '.join(str(x) for x in miscRegs))
+
+legacy_version = 14