Ruby: Add support for functional accesses

This patch rpovides functional access support in Ruby. Currently only
the M5Port of RubyPort supports functional accesses. The support for
functional through the PioPort will be added as a separate patch.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/mem/ruby/system/DirectoryMemory.cc b/src/mem/ruby/system/DirectoryMemory.cc
index fe54c8d79..c461ce09b 100644
--- a/src/mem/ruby/system/DirectoryMemory.cc
+++ b/src/mem/ruby/system/DirectoryMemory.cc
@@ -156,7 +156,7 @@ DirectoryMemory::lookup(PhysAddress address)
     assert(isPresent(address));
     Directory_Entry* entry;
     uint64 idx;
-    DPRINTF(RubyCache, "address: %s\n", address);
+    DPRINTF(RubyCache, "Looking up address: %s\n", address);
 
     if (m_use_map) {
         if (m_sparseMemory->exist(address)) {
@@ -166,6 +166,7 @@ DirectoryMemory::lookup(PhysAddress address)
             // Note: SparseMemory internally creates a new Directory Entry
             m_sparseMemory->add(address);
             entry = m_sparseMemory->lookup(address);
+            entry->changePermission(AccessPermission_Read_Write);
         }
     } else {
         idx = mapAddressToLocalIdx(address);
@@ -175,6 +176,7 @@ DirectoryMemory::lookup(PhysAddress address)
         if (entry == NULL) {
             entry = new Directory_Entry();
             entry->getDataBlk().assign(m_ram->getBlockPtr(address));
+            entry->changePermission(AccessPermission_Read_Only);
             m_entries[idx] = entry;
         }
     }