port msrtool to darwin.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>

with minor changes to allow 32bit and 64bit compilation and (I hope), Peter's
concerns addressed.



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4624 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/util/msrtool/msrtool.c b/util/msrtool/msrtool.c
index 2bb8ded..251da40 100644
--- a/util/msrtool/msrtool.c
+++ b/util/msrtool/msrtool.c
@@ -48,6 +48,7 @@
 
 static struct sysdef allsystems[] = {
 	{ "linux", "Linux with /dev/cpu/*/msr", linux_probe, linux_open, linux_close, linux_rdmsr },
+	{ "darwin", "OS X with DirectIO", darwin_probe, darwin_open, darwin_close, darwin_rdmsr },
 	{ SYSTEM_EOT }
 };