gem5-endian-switch.patch

diff --git a/src/arch/power/isa/decoder.isa b/src/arch/power/isa/decoder.isa
index 0dbe35a88..dd4a3a83c 100644
--- a/src/arch/power/isa/decoder.isa
+++ b/src/arch/power/isa/decoder.isa
@@ -40,6 +40,14 @@
 //
 decode PO default Unknown::unknown() {
 
+    format IntOp {
+        // Fake endianness switch
+        5: esw({{
+            GuestByteOrder = (GuestByteOrder == BigEndianByteOrder) ?
+                LittleEndianByteOrder : BigEndianByteOrder;
+        }});
+    }
+
     // Unconditionally branch to a PC-relative or absoulute address.
     format BranchOp {
         18: b({{ NIA = CIA + disp; }},