[Xen-changelog] [xen-4.0-testing] compat-guest accessor macros do not need address check for hvm guests.

["Xen patchbot-4.0-testing" <patchbot-4.0-testing@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1274858913 -3600
# Node ID 872ddbd95ad00fe70c1fe6a3653263d27423b8d6
# Parent  2758a8028721c84e5349405b4f0984b065738c22
compat-guest accessor macros do not need address check for hvm guests.

Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
xen-unstable changeset:   21456:a69d09da4917
xen-unstable date:        Wed May 26 08:09:38 2010 +0100
---
 xen/include/xen/compat.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

diff -r 2758a8028721 -r 872ddbd95ad0 xen/include/xen/compat.h
--- a/xen/include/xen/compat.h  Wed May 26 08:28:11 2010 +0100
+++ b/xen/include/xen/compat.h  Wed May 26 08:28:33 2010 +0100
@@ -90,8 +90,9 @@
  * Allows use of faster __copy_* functions.
  */
 #define compat_handle_okay(hnd, nr)                                  \
+    (paging_mode_external(current->domain) ||                        \
     compat_array_access_ok((void *)(full_ptr_t)(hnd).c, (nr),        \
-                           sizeof(**(hnd)._))
+                           sizeof(**(hnd)._)))
 
 #define __copy_to_compat_offset(hnd, off, ptr, nr) ({                \
     const typeof(*(ptr)) *_s = (ptr);                                \

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