import invisispec-1.0 source by Mengjia Yan

The original code is at https://github.com/mjyan0720/InvisiSpec-1.0
This code is rebased on upstream gem5 commit 866b200c, which features:
- rdtscp support
- some C++ code optimizations
- newer Linux kernel version number in SE mode

1 files changed, 3 insertions, 1 deletions

diff --git a/src/mem/ruby/structures/CacheMemory.cc b/src/mem/ruby/structures/CacheMemory.cc
index 6c93c3260..943ccdf26 100644
--- a/src/mem/ruby/structures/CacheMemory.cc
+++ b/src/mem/ruby/structures/CacheMemory.cc
@@ -177,7 +177,9 @@ CacheMemory::tryCacheAccess(Addr address, RubyRequestType type,
             return true;
         }
         if ((entry->m_Permission == AccessPermission_Read_Only) &&
-            (type == RubyRequestType_LD || type == RubyRequestType_IFETCH)) {
+            (type == RubyRequestType_LD ||
+             type == RubyRequestType_IFETCH ||
+             type == RubyRequestType_SPEC_LD)) {
             return true;
         }
         // The line must not be accessible