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26149b0202
The secvar code only supports one consumer at a time. Multiple consumers aren't possible at this point in time, but we'd want it to be obvious if it ever could happen. Signed-off-by: Russell Currey <ruscur@russell.cc> Co-developed-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20230210080401.345462-6-ajd@linux.ibm.com
32 lines
723 B
C
32 lines
723 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2019 IBM Corporation
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* Author: Nayna Jain
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*
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* PowerPC secure variable operations.
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*/
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#ifndef SECVAR_OPS_H
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#define SECVAR_OPS_H
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#include <linux/types.h>
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#include <linux/errno.h>
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extern const struct secvar_operations *secvar_ops;
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struct secvar_operations {
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int (*get)(const char *key, u64 key_len, u8 *data, u64 *data_size);
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int (*get_next)(const char *key, u64 *key_len, u64 keybufsize);
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int (*set)(const char *key, u64 key_len, u8 *data, u64 data_size);
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};
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#ifdef CONFIG_PPC_SECURE_BOOT
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int set_secvar_ops(const struct secvar_operations *ops);
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#else
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static inline int set_secvar_ops(const struct secvar_operations *ops) { return 0; }
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#endif
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#endif
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