From: Dongxue Zhang <elta.era@gmail.com>
Date: Tue, 15 Sep 2015 13:14:07 +0000 (-0500)
Subject: dev: IDE Disk: Handle bad IDE image size
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=58ec70444d9cfa50c7405d76a04cda5f9a43e1a1;p=gem5.git

dev: IDE Disk: Handle bad IDE image size

Handle bad IDE disk image size 0. When image size is 0, gem5 will cause an
exception with log "Floating point exception (core dumped)".

Committed by: Nilay Vaish <nilay@cs.wisc.edu>
---

diff --git a/src/dev/ide_disk.cc b/src/dev/ide_disk.cc
index 7298da521..2c8dfceb1 100644
--- a/src/dev/ide_disk.cc
+++ b/src/dev/ide_disk.cc
@@ -90,6 +90,8 @@ IdeDisk::IdeDisk(const Params *p)
     } else {
         if (lba_size >= 63)
             sectors = 63;
+        else if (lba_size == 0)
+            panic("Bad IDE image size: 0\n");
         else
             sectors = lba_size;