From: Krishnendra Nathella <Krishnendra.Nathella@arm.com>
Date: Fri, 7 Sep 2012 19:20:53 +0000 (-0500)
Subject: sim: add validation to make sure there is memory where we're loading the kernel
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=3f5ee1cf8c9e840426e3110644180fed5a1dbcb0;p=gem5.git

sim: add validation to make sure there is memory where we're loading the kernel
---

diff --git a/src/sim/system.cc b/src/sim/system.cc
index 2dd4d41bd..4871ac824 100644
--- a/src/sim/system.cc
+++ b/src/sim/system.cc
@@ -266,6 +266,13 @@ System::initState()
          * Load the kernel code into memory
          */
         if (params()->kernel != "")  {
+            // Validate kernel mapping before loading binary
+            if (!(isMemAddr(kernelStart & loadAddrMask) &&
+                            isMemAddr(kernelEnd & loadAddrMask))) {
+                fatal("Kernel is mapped to invalid location (not memory). "
+                      "kernelStart 0x(%x) - kernelEnd 0x(%x)\n", kernelStart,
+                      kernelEnd);
+            }
             // Load program sections into memory
             kernel->loadSections(physProxy, loadAddrMask);