1 files changed, 24 insertions, 0 deletions
diff --git a/os/boot/pc/ilock.c b/os/boot/pc/ilock.c
new file mode 100644
index 00000000..977b9ad2
--- /dev/null
+++ b/os/boot/pc/ilock.c
@@ -0,0 +1,24 @@
+#include "u.h"
+#include "lib.h"
+#include "mem.h"
+#include "dat.h"
+#include "fns.h"
+#include "io.h"
+
+void
+ilock(Lock *lk)
+{
+	if(lk->locked != 0)
+		panic("ilock");
+	lk->spl = splhi();
+	lk->locked = 1;
+}
+
+void
+iunlock(Lock *lk)
+{
+	if(lk->locked != 1)
+		panic("iunlock");
+	lk->locked = 0;
+	splx(lk->spl);
+}