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block:sed-opal: SED Opal keystore

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Add read and write functions that allow SED Opal keys to stored
in a permanent keystore.

Signed-off-by: Greg Joyce <gjoyce@linux.vnet.ibm.com>
Reviewed-by: Jonathan Derrick <jonathan.derrick@linux.dev>
Link: https://lore.kernel.org/r/20231004201957.1451669-2-gjoyce@linux.vnet.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Greg Joyce 2023-10-04 15:19:55 -05:00 committed by Jens Axboe
parent b4e1353f46
commit 96ff37ceb2
1 changed files with 26 additions and 0 deletions
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26
include/linux/sed-opal-key.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* SED key operations.
*
* Copyright (C) 2023 IBM Corporation
*
* These are the accessor functions (read/write) for SED Opal
* keys. Specific keystores can provide overrides.
*
*/
#include <linux/kernel.h>
#ifdef CONFIG_PSERIES_PLPKS_SED
int sed_read_key(char *keyname, char *key, u_int *keylen);
int sed_write_key(char *keyname, char *key, u_int keylen);
#else
static inline
int sed_read_key(char *keyname, char *key, u_int *keylen) {
return -EOPNOTSUPP;
}
static inline
int sed_write_key(char *keyname, char *key, u_int keylen) {
return -EOPNOTSUPP;
}
#endif