diff --git a/Makefile b/Makefile
index 11f44de2..5e3b92ee 100644
--- a/Makefile
+++ b/Makefile
@@ -76,7 +76,6 @@ LIB_C_FILES += rtemsbsd/rtems/rtems-bsd-rwlock.c
 LIB_C_FILES += rtemsbsd/rtems/rtems-bsd-shell.c
 LIB_C_FILES += rtemsbsd/rtems/rtems-bsd-shell-netcmds.c
 LIB_C_FILES += rtemsbsd/rtems/rtems-bsd-signal.c
-LIB_C_FILES += rtemsbsd/rtems/rtems-bsd-subr_param.c
 LIB_C_FILES += rtemsbsd/rtems/rtems-bsd-support.c
 LIB_C_FILES += rtemsbsd/rtems/rtems-bsd-sx.c
 LIB_C_FILES += rtemsbsd/rtems/rtems-bsd-syscall-api.c
diff --git a/freebsd-to-rtems.py b/freebsd-to-rtems.py
index 953bb6d9..778d87da 100755
--- a/freebsd-to-rtems.py
+++ b/freebsd-to-rtems.py
@@ -633,7 +633,6 @@ rtems.addRTEMSSourceFiles(
 		'rtems/rtems-bsd-shell.c',
 		'rtems/rtems-bsd-shell-netcmds.c',
 		'rtems/rtems-bsd-signal.c',
-		'rtems/rtems-bsd-subr_param.c',
 		'rtems/rtems-bsd-support.c',
 		'rtems/rtems-bsd-sx.c',
 		'rtems/rtems-bsd-syscall-api.c',
diff --git a/freebsd/sys/sys/systm.h b/freebsd/sys/sys/systm.h
index 75d8a49b..f809174e 100644
--- a/freebsd/sys/sys/systm.h
+++ b/freebsd/sys/sys/systm.h
@@ -75,7 +75,11 @@ extern int bootverbose;		/* nonzero to print verbose messages */
 
 extern int maxusers;		/* system tune hint */
 extern int ngroups_max;		/* max # of supplemental groups */
+#ifndef __rtems__
 extern int vm_guest;		/* Running as virtual machine guest? */
+#else /* __rtems__ */
+#define vm_guest VM_GUEST_NO
+#endif /* __rtems__ */
 
 /*
  * Detected virtual machine guest types. The intention is to expand
diff --git a/rtemsbsd/rtems/rtems-bsd-subr_param.c b/rtemsbsd/rtems/rtems-bsd-subr_param.c
deleted file mode 100644
index efbd7384..00000000
--- a/rtemsbsd/rtems/rtems-bsd-subr_param.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/**
- * @file
- *
- * @ingroup rtems_bsd_rtems
- *
- * @brief This file is an rtems representation of needed methods
- * and/or variables associated with the FreeBSD file subr_param.c
-
-/*
- * COPYRIGHT (c) 2012. On-Line Applications Research Corporation (OAR).
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <machine/rtems-bsd-config.h>
-
-int     vm_guest = 0;