util: cpt_upgrader fix vregs size for #PR171

* Make cpt_upgrader set vregs of size MaxVecLenInBytes

Change-Id: Ie7e00d9bf42b705a0fb30c9d203933fc2e9bdcd9

util/cpt_upgraders/riscv-dyn-vlen.py

@@ -0,0 +1,49 @@
+# Copyright (c) 2023 Barcelona Supercomputing Center (BSC)
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+def upgrader(cpt):
+    """
+    Update the checkpoint to support initial RVV implemtation.
+    The updater is taking the following steps.
+
+    Set vector registers to occupy 327680 bytes (40regs * 8192bytes).
+    Vector registers now ocupy this space regardless of VLEN as the
+    VecRegContainer is always MaxVecLenInBytes.
+    """
+
+    for sec in cpt.sections():
+        import re
+
+        # Search for all XC sections
+
+        if re.search(r".*processor.*\.core.*\.xc.*", sec):
+            # Updating RVV vector registers (dummy values)
+            mr = cpt.get(sec, "regs.vector").split()
+            if len(mr) != 327680:
+                cpt.set(
+                    sec, "regs.vector", " ".join("0" for i in range(327680))
+                )