// SPDX-License-Identifier: GPL-2.0
/*
* pkey device driver
*
* Copyright IBM Corp. 2017,2019
* Author(s): Harald Freudenberger
*/
#define KMSG_COMPONENT "pkey"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/kallsyms.h>
#include <linux/debugfs.h>
#include <linux/random.h>
#include <linux/cpufeature.h>
#include <asm/zcrypt.h>
#include <asm/cpacf.h>
#include <asm/pkey.h>
#include <crypto/aes.h>
#include "zcrypt_api.h"
#include "zcrypt_ccamisc.h"
MODULE_LICENSE("GPL");
MODULE_AUTHOR("IBM Corporation");
MODULE_DESCRIPTION("s390 protected key interface");
#define KEYBLOBBUFSIZE 8192 /* key buffer size used for internal processing */
#define MAXAPQNSINLIST 64 /* max 64 apqns within a apqn list */
/* mask of available pckmo subfunctions, fetched once at module init */
static cpacf_mask_t pckmo_functions;