1 files changed, 28 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pkey.h b/arch/s390/include/asm/pkey.h
new file mode 100644
index 000000000..dd3d20c33
--- /dev/null
+++ b/arch/s390/include/asm/pkey.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Kernelspace interface to the pkey device driver
+ *
+ * Copyright IBM Corp. 2016,2019
+ *
+ * Author: Harald Freudenberger <freude@de.ibm.com>
+ *
+ */
+
+#ifndef _KAPI_PKEY_H
+#define _KAPI_PKEY_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#include <uapi/asm/pkey.h>
+
+/*
+ * In-kernel API: Transform an key blob (of any type) into a protected key.
+ * @param key pointer to a buffer containing the key blob
+ * @param keylen size of the key blob in bytes
+ * @param protkey pointer to buffer receiving the protected key
+ * @return 0 on success, negative errno value on failure
+ */
+int pkey_keyblob2pkey(const u8 *key, u32 keylen,
+		      struct pkey_protkey *protkey);
+
+#endif /* _KAPI_PKEY_H */