From 5e3f9115d395e23764c449195fb7c8ba86cacad7 Mon Sep 17 00:00:00 2001
From: Howard Mao <zhehao.mao@gmail.com>
Date: Fri, 25 Sep 2015 09:02:35 -0700
Subject: [PATCH] make sure HTIF mem_mb doesn't exceed MMIOBase

---
 csrc/htif_emulator.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/csrc/htif_emulator.h b/csrc/htif_emulator.h
index 9cd216c7..de9b416f 100644
--- a/csrc/htif_emulator.h
+++ b/csrc/htif_emulator.h
@@ -25,7 +25,10 @@ class htif_emulator_t : public htif_pthread_t
     htif_pthread_t::start();
   }
 
-  uint32_t mem_mb() { return _memsz_mb; }
+  uint32_t mem_mb() {
+    uint32_t scr_mb = htif_pthread_t::mem_mb();
+    return (_memsz_mb < scr_mb) ? _memsz_mb : scr_mb;
+  }
 
  private:
   uint32_t _memsz_mb;