From: kajoljain379 <kajoljain797@gmail.com>
Date: Wed, 20 Mar 2019 09:54:48 +0000 (+0530)
Subject: arch-power: Added functionality to update Reference and Change bit
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=67b8a882447953722c563de9e3599fc8e852684d;p=gem5.git

arch-power: Added functionality to update Reference and Change bit

* Update the "Reference" and the "Change" bits on
  the page-table entry whenever a page is accessed.

Change-Id: Iced7c10019e1ebe618f9723a65c6812d992bf27e
Signed-off-by: kajoljain379 <kajoljain797@gmail.com>
---

diff --git a/src/arch/power/radixwalk.cc b/src/arch/power/radixwalk.cc
index ded483033..a0e88ed2e 100644
--- a/src/arch/power/radixwalk.cc
+++ b/src/arch/power/radixwalk.cc
@@ -514,6 +514,13 @@ RadixWalk::walkTree(Addr vaddr ,uint64_t curBase ,ThreadContext * tc ,
               DPRINTF(RadixWalk,"Fault is due to protection violation\n");
               }
 
+            rpte.ref = 1;
+            if (mode == BaseTLB::Write) {
+                rpte.c = 1;
+            }
+            gtobe<uint64_t>(rpte);
+            this->writePhysMem(rpte, dataSize);
+
           return AddrTran;
         }