From e928b741ced0992468f621e95e54f1a666b47269 Mon Sep 17 00:00:00 2001
From: Andrew Waterman <waterman@cs.berkeley.edu>
Date: Thu, 29 Sep 2016 13:52:41 -0700
Subject: [PATCH] Default mtvec=0, not None

Setting it to None was a mistake.  It makes it far harder to
diagnose boot bugs, as you end up fetching from random addreses
after trapping.
---
 src/main/scala/coreplex/Configs.scala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/scala/coreplex/Configs.scala b/src/main/scala/coreplex/Configs.scala
index 304ca115..cd7be71d 100644
--- a/src/main/scala/coreplex/Configs.scala
+++ b/src/main/scala/coreplex/Configs.scala
@@ -100,7 +100,7 @@ class BaseCoreplexConfig extends Config (
       case UseCompressed => true
       case DMKey => new DefaultDebugModuleConfig(site(NTiles), site(XLen))
       case NCustomMRWCSRs => 0
-      case MtvecInit => None
+      case MtvecInit => Some(BigInt(0))
       case MtvecWritable => true
       //Uncore Paramters
       case LNEndpoints => site(TLKey(site(TLId))).nManagers + site(TLKey(site(TLId))).nClients