81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/**
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* Routines supporting VMX instructions on the Power 8
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*
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* Copyright (C) 2015 International Business Machines Inc.
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*
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* Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com>
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/types.h>
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#include <linux/err.h>
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#include <linux/cpufeature.h>
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#include <linux/crypto.h>
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#include <asm/cputable.h>
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#include <crypto/internal/hash.h>
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#include <crypto/internal/skcipher.h>
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extern struct shash_alg p8_ghash_alg;
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extern struct crypto_alg p8_aes_alg;
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extern struct skcipher_alg p8_aes_cbc_alg;
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extern struct skcipher_alg p8_aes_ctr_alg;
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extern struct skcipher_alg p8_aes_xts_alg;
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static int __init p8_init(void)
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{
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int ret;
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ret = crypto_register_shash(&p8_ghash_alg);
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if (ret)
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goto err;
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ret = crypto_register_alg(&p8_aes_alg);
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if (ret)
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goto err_unregister_ghash;
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ret = crypto_register_skcipher(&p8_aes_cbc_alg);
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if (ret)
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goto err_unregister_aes;
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ret = crypto_register_skcipher(&p8_aes_ctr_alg);
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if (ret)
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goto err_unregister_aes_cbc;
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ret = crypto_register_skcipher(&p8_aes_xts_alg);
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if (ret)
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goto err_unregister_aes_ctr;
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return 0;
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err_unregister_aes_ctr:
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crypto_unregister_skcipher(&p8_aes_ctr_alg);
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err_unregister_aes_cbc:
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crypto_unregister_skcipher(&p8_aes_cbc_alg);
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err_unregister_aes:
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crypto_unregister_alg(&p8_aes_alg);
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err_unregister_ghash:
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crypto_unregister_shash(&p8_ghash_alg);
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err:
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return ret;
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}
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static void __exit p8_exit(void)
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{
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crypto_unregister_skcipher(&p8_aes_xts_alg);
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crypto_unregister_skcipher(&p8_aes_ctr_alg);
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crypto_unregister_skcipher(&p8_aes_cbc_alg);
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crypto_unregister_alg(&p8_aes_alg);
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crypto_unregister_shash(&p8_ghash_alg);
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}
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module_cpu_feature_match(PPC_MODULE_FEATURE_VEC_CRYPTO, p8_init);
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module_exit(p8_exit);
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MODULE_AUTHOR("Marcelo Cerri<mhcerri@br.ibm.com>");
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MODULE_DESCRIPTION("IBM VMX cryptographic acceleration instructions "
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"support on Power 8");
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MODULE_LICENSE("GPL");
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MODULE_VERSION("1.0.0");
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