1 files changed, 61 insertions, 0 deletions
diff --git a/util/msrtool/darwin.c b/util/msrtool/darwin.c
new file mode 100644
index 0000000000..bdd169e97a
--- /dev/null
+++ b/util/msrtool/darwin.c
@@ -0,0 +1,61 @@
+/*
+ * This file is part of msrtool.
+ *
+ * Copyright (c) 2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include "msrtool.h"
+
+int darwin_probe(const struct sysdef *system)
+{
+#ifdef __DARWIN__
+	return iopl(3) == 0;
+#else
+	return 0;
+#endif
+}
+
+int darwin_open(uint8_t cpu, enum SysModes mode)
+{
+	if (cpu > 0) {
+		fprintf(stderr, "%s: only core 0 is supported on Mac OS X right now.\n", __func__);
+		return 0;
+	}
+	return 1;
+}
+
+int darwin_close(uint8_t cpu)
+{
+	return 1;
+}
+
+int darwin_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val)
+{
+	msr_t msr;
+
+	msr = rdmsr(addr);
+
+	val->hi = msr.lo;
+	val->lo = msr.hi;
+	return 1;
+}