1 files changed, 40 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/secvar.h b/arch/powerpc/include/asm/secvar.h
new file mode 100644
index 000000000..4828e0ab7
--- /dev/null
+++ b/arch/powerpc/include/asm/secvar.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 IBM Corporation
+ * Author: Nayna Jain
+ *
+ * PowerPC secure variable operations.
+ */
+#ifndef SECVAR_OPS_H
+#define SECVAR_OPS_H
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/sysfs.h>
+
+extern const struct secvar_operations *secvar_ops;
+
+struct secvar_operations {
+	int (*get)(const char *key, u64 key_len, u8 *data, u64 *data_size);
+	int (*get_next)(const char *key, u64 *key_len, u64 keybufsize);
+	int (*set)(const char *key, u64 key_len, u8 *data, u64 data_size);
+	ssize_t (*format)(char *buf, size_t bufsize);
+	int (*max_size)(u64 *max_size);
+	const struct attribute **config_attrs;
+
+	// NULL-terminated array of fixed variable names
+	// Only used if get_next() isn't provided
+	const char * const *var_names;
+};
+
+#ifdef CONFIG_PPC_SECURE_BOOT
+
+int set_secvar_ops(const struct secvar_operations *ops);
+
+#else
+
+static inline int set_secvar_ops(const struct secvar_operations *ops) { return 0; }
+
+#endif
+
+#endif