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-rw-r--r--arch/powerpc/platforms/pseries/plpks.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/plpks.h b/arch/powerpc/platforms/pseries/plpks.h
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+++ b/arch/powerpc/platforms/pseries/plpks.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2022 IBM Corporation
+ * Author: Nayna Jain <nayna@linux.ibm.com>
+ *
+ * Platform keystore for pseries LPAR(PLPKS).
+ */
+
+#ifndef _PSERIES_PLPKS_H
+#define _PSERIES_PLPKS_H
+
+#include <linux/types.h>
+#include <linux/list.h>
+
+#define OSSECBOOTAUDIT 0x40000000
+#define OSSECBOOTENFORCE 0x20000000
+#define WORLDREADABLE 0x08000000
+#define SIGNEDUPDATE 0x01000000
+
+#define PLPKS_VAR_LINUX 0x02
+#define PLPKS_VAR_COMMON 0x04
+
+struct plpks_var {
+ char *component;
+ u8 *name;
+ u8 *data;
+ u32 policy;
+ u16 namelen;
+ u16 datalen;
+ u8 os;
+};
+
+struct plpks_var_name {
+ u8 *name;
+ u16 namelen;
+};
+
+struct plpks_var_name_list {
+ u32 varcount;
+ struct plpks_var_name varlist[];
+};
+
+/**
+ * Writes the specified var and its data to PKS.
+ * Any caller of PKS driver should present a valid component type for
+ * their variable.
+ */
+int plpks_write_var(struct plpks_var var);
+
+/**
+ * Removes the specified var and its data from PKS.
+ */
+int plpks_remove_var(char *component, u8 varos,
+ struct plpks_var_name vname);
+
+/**
+ * Returns the data for the specified os variable.
+ */
+int plpks_read_os_var(struct plpks_var *var);
+
+/**
+ * Returns the data for the specified firmware variable.
+ */
+int plpks_read_fw_var(struct plpks_var *var);
+
+/**
+ * Returns the data for the specified bootloader variable.
+ */
+int plpks_read_bootloader_var(struct plpks_var *var);
+
+#endif