From e9ef63e19d8f9993950f1f06299aee1eb18ded9f Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Thu, 1 Jul 2010 08:45:53 +1000
Subject: [PATCH] Revert "Remove call to iopl(). It's not portable and isn't necessary."

https://bugzilla.redhat.com/show_bug.cgi?id=604660

For details, see:
https://bugzilla.novell.com/show_bug.cgi?id=604966

This reverts commit bcdec3d0cd4434770cd841c33c030e0d7203881f.
---
 tools/vmmouse_detect.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/tools/vmmouse_detect.c b/tools/vmmouse_detect.c
index ac238b4..cfb92e1 100644
--- a/tools/vmmouse_detect.c
+++ b/tools/vmmouse_detect.c
@@ -53,6 +53,11 @@ main(void)
    signal(SIGSEGV, segvCB);
 
 #if defined __i386__ || defined __x86_64__ 
+   /*
+    * To access i/o ports above 0x3ff, we need to be in iopl(3).
+    */
+
+   iopl(3);
    if (VMMouseClient_Enable()) {
       VMMouseClient_Disable();
       return 0;
-- 
1.7.1

