[Xen-changelog] [xen-unstable] [XEND] Check for and fail on non-existent floppy-drive file when starting HVM guest.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Node ID 0a7fb6788fa746529220768dd66e32a0058db6f7
# Parent  e169814c45ac0aec9117047994b60b69f634e463
[XEND] Check for and fail on non-existent floppy-drive file when starting HVM 
guest.

The qemu device model hangs when a non-existent floppy file is passed
via 'fda' or 'fdb'. The attached patch checks whether the floppy file
exists and raises an error if it does not.

Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxx>
---
 tools/python/xen/xend/image.py |    5 +++++
 1 files changed, 5 insertions(+)

diff -r e169814c45ac -r 0a7fb6788fa7 tools/python/xen/xend/image.py
--- a/tools/python/xen/xend/image.py    Tue Oct 10 16:02:30 2006 +0100
+++ b/tools/python/xen/xend/image.py    Sun Oct 15 09:19:26 2006 +0100
@@ -312,6 +312,11 @@ class HVMImageHandler(ImageHandler):
                 if v:
                     ret.append("-%s" % a)
                     ret.append("%s" % v)
+
+            if a in ['fda', 'fdb' ]:
+                if v:
+                    if not os.path.isfile(v):
+                        raise VmError("Floppy file %s does not exist." % v)
             log.debug("args: %s, val: %s" % (a,v))
 
         # Handle disk/network related options

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