diff options
Diffstat (limited to 'drivers/crypto')
-rw-r--r-- | drivers/crypto/vmx/aes.c | 8 | ||||
-rw-r--r-- | drivers/crypto/vmx/aes_cbc.c | 6 | ||||
-rw-r--r-- | drivers/crypto/vmx/ghash.c | 8 |
3 files changed, 21 insertions, 1 deletions
diff --git a/drivers/crypto/vmx/aes.c b/drivers/crypto/vmx/aes.c index ab300ea19434..a9064e36e7b5 100644 --- a/drivers/crypto/vmx/aes.c +++ b/drivers/crypto/vmx/aes.c @@ -78,12 +78,14 @@ static int p8_aes_setkey(struct crypto_tfm *tfm, const u8 *key, int ret; struct p8_aes_ctx *ctx = crypto_tfm_ctx(tfm); + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key); ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key); pagefault_enable(); - + preempt_enable(); + ret += crypto_cipher_setkey(ctx->fallback, key, keylen); return ret; } @@ -95,10 +97,12 @@ static void p8_aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) if (in_interrupt()) { crypto_cipher_encrypt_one(ctx->fallback, dst, src); } else { + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); aes_p8_encrypt(src, dst, &ctx->enc_key); pagefault_enable(); + preempt_enable(); } } @@ -109,10 +113,12 @@ static void p8_aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) if (in_interrupt()) { crypto_cipher_decrypt_one(ctx->fallback, dst, src); } else { + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); aes_p8_decrypt(src, dst, &ctx->dec_key); pagefault_enable(); + preempt_enable(); } } diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c index 1a559b7dddb5..477284abdd11 100644 --- a/drivers/crypto/vmx/aes_cbc.c +++ b/drivers/crypto/vmx/aes_cbc.c @@ -79,11 +79,13 @@ static int p8_aes_cbc_setkey(struct crypto_tfm *tfm, const u8 *key, int ret; struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm); + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key); ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key); pagefault_enable(); + preempt_enable(); ret += crypto_blkcipher_setkey(ctx->fallback, key, keylen); return ret; @@ -106,6 +108,7 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc, if (in_interrupt()) { ret = crypto_blkcipher_encrypt(&fallback_desc, dst, src, nbytes); } else { + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); @@ -119,6 +122,7 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc, } pagefault_enable(); + preempt_enable(); } return ret; @@ -141,6 +145,7 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc, if (in_interrupt()) { ret = crypto_blkcipher_decrypt(&fallback_desc, dst, src, nbytes); } else { + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); @@ -154,6 +159,7 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc, } pagefault_enable(); + preempt_enable(); } return ret; diff --git a/drivers/crypto/vmx/ghash.c b/drivers/crypto/vmx/ghash.c index d0ffe277af5c..f255ec4a04d4 100644 --- a/drivers/crypto/vmx/ghash.c +++ b/drivers/crypto/vmx/ghash.c @@ -114,11 +114,13 @@ static int p8_ghash_setkey(struct crypto_shash *tfm, const u8 *key, if (keylen != GHASH_KEY_LEN) return -EINVAL; + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); enable_kernel_fp(); gcm_init_p8(ctx->htable, (const u64 *) key); pagefault_enable(); + preempt_enable(); return crypto_shash_setkey(ctx->fallback, key, keylen); } @@ -140,23 +142,27 @@ static int p8_ghash_update(struct shash_desc *desc, } memcpy(dctx->buffer + dctx->bytes, src, GHASH_DIGEST_SIZE - dctx->bytes); + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); enable_kernel_fp(); gcm_ghash_p8(dctx->shash, ctx->htable, dctx->buffer, GHASH_DIGEST_SIZE); pagefault_enable(); + preempt_enable(); src += GHASH_DIGEST_SIZE - dctx->bytes; srclen -= GHASH_DIGEST_SIZE - dctx->bytes; dctx->bytes = 0; } len = srclen & ~(GHASH_DIGEST_SIZE - 1); if (len) { + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); enable_kernel_fp(); gcm_ghash_p8(dctx->shash, ctx->htable, src, len); pagefault_enable(); + preempt_enable(); src += len; srclen -= len; } @@ -180,12 +186,14 @@ static int p8_ghash_final(struct shash_desc *desc, u8 *out) if (dctx->bytes) { for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++) dctx->buffer[i] = 0; + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); enable_kernel_fp(); gcm_ghash_p8(dctx->shash, ctx->htable, dctx->buffer, GHASH_DIGEST_SIZE); pagefault_enable(); + preempt_enable(); dctx->bytes = 0; } memcpy(out, dctx->shash, GHASH_DIGEST_SIZE); |