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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 0x01
#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