From 08ff887056f6948eeb929fb3c6dfe1e8eb604e7d Mon Sep 17 00:00:00 2001
From: Steven Edwards <winehacker@gmail.com>
Date: Tue, 1 Jun 2004 19:08:53 +0000
Subject: [PATCH] revert to 1.3. I didnt mean to commit that

svn path=/trunk/; revision=9586
---
 reactos/subsys/system/vmwinst/vmwinst.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/reactos/subsys/system/vmwinst/vmwinst.c b/reactos/subsys/system/vmwinst/vmwinst.c
index 8813b48f891..dcca5ddaf7d 100644
--- a/reactos/subsys/system/vmwinst/vmwinst.c
+++ b/reactos/subsys/system/vmwinst/vmwinst.c
@@ -16,7 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id: vmwinst.c,v 1.4 2004/06/01 19:06:50 sedwards Exp $
+/* $Id: vmwinst.c,v 1.5 2004/06/01 19:08:53 sedwards Exp $
  *
  * COPYRIGHT:   See COPYING in the top level directory
  * PROJECT:     ReactOS VMware(r) driver installation utility
@@ -56,7 +56,24 @@ LONG WINAPI ExceptionHandler(LPEXCEPTION_POINTERS ExceptionInfo)
 BOOL
 DetectVMware(int *Version)
 {
+  int magic, ver;
+  
+  magic = 0;
+  ver = 0;
+  
+  /* Try using a VMware I/O port. If not running in VMware this'll throw an
+     exception! */
+  __asm__ __volatile__("inl  %%dx, %%eax"
+    : "=a" (ver), "=b" (magic)
+    : "0" (0x564d5868), "d" (0x5658), "c" (0xa));
+
+  if(magic == 0x564d5868)
+  {
+    *Version = ver;
     return TRUE;
+  }
+  
+  return FALSE;
 }
 
 BOOL