mtrr calls

1 files changed, 32 insertions, 0 deletions

diff --git a/lib/libarch/amd64/amd64_set_mtrr.c b/lib/libarch/amd64/amd64_set_mtrr.c
new file mode 100644
index 00000000000..e20c5d17dc6
--- /dev/null
+++ b/lib/libarch/amd64/amd64_set_mtrr.c
@@ -0,0 +1,32 @@
+/*	$OpenBSD: amd64_set_mtrr.c,v 1.1 2004/02/28 23:51:35 deraadt Exp $	*/
+
+/*
+ * Copyright (c) 2004 Theo de Raadt
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <machine/segments.h>
+#include <machine/sysarch.h>
+
+int
+amd64_set_mtrr(struct mtrr *mtrr, int *n)
+{
+	struct amd64_set_mtrr_args a;
+
+	a.mtrrp = mtrr;
+	a.n = n;
+	return sysarch(AMD64_SET_MTRR, (void *)&a);
+}