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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 18:11:00 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 18:11:00 -0800
commit13c789a6b219aa23f917466c7e630566106b14c2 (patch)
treead9e096ded01f433306bcd40af3a3f8dc1ddea6f /drivers/crypto
parent6dd9158ae8577372aa433e6b0eae3c3d4caa5439 (diff)
parent79ba451d66ca8402c8d052ceb50e359ddc5e1161 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu: "Here is the crypto update for 3.14: - Improved crypto_memneq helper - Use cyprto_memneq in arch-specific crypto code - Replaced orphaned DCP driver with Freescale MXS DCP driver - Added AVX/AVX2 version of AESNI-GCM encode and decode - Added AMD Cryptographic Coprocessor (CCP) driver - Misc fixes" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (41 commits) crypto: aesni - fix build on x86 (32bit) crypto: mxs - Fix sparse non static symbol warning crypto: ccp - CCP device enabled/disabled changes crypto: ccp - Cleanup hash invocation calls crypto: ccp - Change data length declarations to u64 crypto: ccp - Check for caller result area before using it crypto: ccp - Cleanup scatterlist usage crypto: ccp - Apply appropriate gfp_t type to memory allocations crypto: drivers - Sort drivers/crypto/Makefile ARM: mxs: dts: Enable DCP for MXS crypto: mxs - Add Freescale MXS DCP driver crypto: mxs - Remove the old DCP driver crypto: ahash - Fully restore ahash request before completing crypto: aesni - fix build on x86 (32bit) crypto: talitos - Remove redundant dev_set_drvdata crypto: ccp - Remove redundant dev_set_drvdata crypto: crypto4xx - Remove redundant dev_set_drvdata crypto: caam - simplify and harden key parsing crypto: omap-sham - Fix Polling mode for larger blocks crypto: tcrypt - Added speed tests for AEAD crypto alogrithms in tcrypt test suite ...
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/Kconfig39
-rw-r--r--drivers/crypto/Makefile33
-rw-r--r--drivers/crypto/amcc/crypto4xx_core.c1
-rw-r--r--drivers/crypto/caam/caamalg.c36
-rw-r--r--drivers/crypto/ccp/Kconfig24
-rw-r--r--drivers/crypto/ccp/Makefile10
-rw-r--r--drivers/crypto/ccp/ccp-crypto-aes-cmac.c365
-rw-r--r--drivers/crypto/ccp/ccp-crypto-aes-xts.c279
-rw-r--r--drivers/crypto/ccp/ccp-crypto-aes.c369
-rw-r--r--drivers/crypto/ccp/ccp-crypto-main.c432
-rw-r--r--drivers/crypto/ccp/ccp-crypto-sha.c517
-rw-r--r--drivers/crypto/ccp/ccp-crypto.h197
-rw-r--r--drivers/crypto/ccp/ccp-dev.c595
-rw-r--r--drivers/crypto/ccp/ccp-dev.h272
-rw-r--r--drivers/crypto/ccp/ccp-ops.c2024
-rw-r--r--drivers/crypto/ccp/ccp-pci.c361
-rw-r--r--drivers/crypto/dcp.c903
-rw-r--r--drivers/crypto/mxs-dcp.c1100
-rw-r--r--drivers/crypto/omap-aes.c16
-rw-r--r--drivers/crypto/omap-sham.c19
-rw-r--r--drivers/crypto/talitos.c23
21 files changed, 6647 insertions, 968 deletions
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index f4fd837bcb82..13857f5d28f7 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -289,16 +289,6 @@ config CRYPTO_DEV_SAHARA
This option enables support for the SAHARA HW crypto accelerator
found in some Freescale i.MX chips.
-config CRYPTO_DEV_DCP
- tristate "Support for the DCP engine"
- depends on ARCH_MXS && OF
- select CRYPTO_BLKCIPHER
- select CRYPTO_AES
- select CRYPTO_CBC
- help
- This options enables support for the hardware crypto-acceleration
- capabilities of the DCP co-processor
-
config CRYPTO_DEV_S5P
tristate "Support for Samsung S5PV210 crypto accelerator"
depends on ARCH_S5PV210
@@ -399,4 +389,33 @@ config CRYPTO_DEV_ATMEL_SHA
To compile this driver as a module, choose M here: the module
will be called atmel-sha.
+config CRYPTO_DEV_CCP
+ bool "Support for AMD Cryptographic Coprocessor"
+ depends on X86 && PCI
+ default n
+ help
+ The AMD Cryptographic Coprocessor provides hardware support
+ for encryption, hashing and related operations.
+
+if CRYPTO_DEV_CCP
+ source "drivers/crypto/ccp/Kconfig"
+endif
+
+config CRYPTO_DEV_MXS_DCP
+ tristate "Support for Freescale MXS DCP"
+ depends on ARCH_MXS
+ select CRYPTO_SHA1
+ select CRYPTO_SHA256
+ select CRYPTO_CBC
+ select CRYPTO_ECB
+ select CRYPTO_AES
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_ALGAPI
+ help
+ The Freescale i.MX23/i.MX28 has SHA1/SHA256 and AES128 CBC/ECB
+ co-processor on the die.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mxs-dcp.
+
endif # CRYPTO_HW
diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile
index b4946ddd2550..0bc6aa0a54d7 100644
--- a/drivers/crypto/Makefile
+++ b/drivers/crypto/Makefile
@@ -1,24 +1,25 @@
-obj-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o
-obj-$(CONFIG_CRYPTO_DEV_PADLOCK_SHA) += padlock-sha.o
+obj-$(CONFIG_CRYPTO_DEV_ATMEL_AES) += atmel-aes.o
+obj-$(CONFIG_CRYPTO_DEV_ATMEL_SHA) += atmel-sha.o
+obj-$(CONFIG_CRYPTO_DEV_ATMEL_TDES) += atmel-tdes.o
+obj-$(CONFIG_CRYPTO_DEV_BFIN_CRC) += bfin_crc.o
+obj-$(CONFIG_CRYPTO_DEV_CCP) += ccp/
+obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM) += caam/
obj-$(CONFIG_CRYPTO_DEV_GEODE) += geode-aes.o
-obj-$(CONFIG_CRYPTO_DEV_NIAGARA2) += n2_crypto.o
-n2_crypto-y := n2_core.o n2_asm.o
obj-$(CONFIG_CRYPTO_DEV_HIFN_795X) += hifn_795x.o
-obj-$(CONFIG_CRYPTO_DEV_MV_CESA) += mv_cesa.o
-obj-$(CONFIG_CRYPTO_DEV_TALITOS) += talitos.o
-obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM) += caam/
obj-$(CONFIG_CRYPTO_DEV_IXP4XX) += ixp4xx_crypto.o
-obj-$(CONFIG_CRYPTO_DEV_PPC4XX) += amcc/
-obj-$(CONFIG_CRYPTO_DEV_OMAP_SHAM) += omap-sham.o
+obj-$(CONFIG_CRYPTO_DEV_MV_CESA) += mv_cesa.o
+obj-$(CONFIG_CRYPTO_DEV_MXS_DCP) += mxs-dcp.o
+obj-$(CONFIG_CRYPTO_DEV_NIAGARA2) += n2_crypto.o
+n2_crypto-y := n2_core.o n2_asm.o
+obj-$(CONFIG_CRYPTO_DEV_NX) += nx/
obj-$(CONFIG_CRYPTO_DEV_OMAP_AES) += omap-aes.o
+obj-$(CONFIG_CRYPTO_DEV_OMAP_SHAM) += omap-sham.o
+obj-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o
+obj-$(CONFIG_CRYPTO_DEV_PADLOCK_SHA) += padlock-sha.o
obj-$(CONFIG_CRYPTO_DEV_PICOXCELL) += picoxcell_crypto.o
-obj-$(CONFIG_CRYPTO_DEV_SAHARA) += sahara.o
-obj-$(CONFIG_CRYPTO_DEV_DCP) += dcp.o
+obj-$(CONFIG_CRYPTO_DEV_PPC4XX) += amcc/
obj-$(CONFIG_CRYPTO_DEV_S5P) += s5p-sss.o
+obj-$(CONFIG_CRYPTO_DEV_SAHARA) += sahara.o
+obj-$(CONFIG_CRYPTO_DEV_TALITOS) += talitos.o
obj-$(CONFIG_CRYPTO_DEV_TEGRA_AES) += tegra-aes.o
obj-$(CONFIG_CRYPTO_DEV_UX500) += ux500/
-obj-$(CONFIG_CRYPTO_DEV_BFIN_CRC) += bfin_crc.o
-obj-$(CONFIG_CRYPTO_DEV_NX) += nx/
-obj-$(CONFIG_CRYPTO_DEV_ATMEL_AES) += atmel-aes.o
-obj-$(CONFIG_CRYPTO_DEV_ATMEL_TDES) += atmel-tdes.o
-obj-$(CONFIG_CRYPTO_DEV_ATMEL_SHA) += atmel-sha.o
diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c
index efaf6302405f..37f9cc98ba17 100644
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -724,7 +724,6 @@ static void crypto4xx_stop_all(struct crypto4xx_core_device *core_dev)
crypto4xx_destroy_pdr(core_dev->dev);
crypto4xx_destroy_gdr(core_dev->dev);
crypto4xx_destroy_sdr(core_dev->dev);
- dev_set_drvdata(core_dev->device, NULL);
iounmap(core_dev->dev->ce_base);
kfree(core_dev->dev);
kfree(core_dev);
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 4cf5dec826e1..b71f2fd749df 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -467,24 +467,10 @@ static int aead_setkey(struct crypto_aead *aead,
static const u8 mdpadlen[] = { 16, 20, 32, 32, 64, 64 };
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
- struct rtattr *rta = (void *)key;
- struct crypto_authenc_key_param *param;
- unsigned int authkeylen;
- unsigned int enckeylen;
+ struct crypto_authenc_keys keys;
int ret = 0;
- param = RTA_DATA(rta);
- enckeylen = be32_to_cpu(param->enckeylen);
-
- key += RTA_ALIGN(rta->rta_len);
- keylen -= RTA_ALIGN(rta->rta_len);
-
- if (keylen < enckeylen)
- goto badkey;
-
- authkeylen = keylen - enckeylen;
-
- if (keylen > CAAM_MAX_KEY_SIZE)
+ if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
goto badkey;
/* Pick class 2 key length from algorithm submask */
@@ -492,25 +478,29 @@ static int aead_setkey(struct crypto_aead *aead,
OP_ALG_ALGSEL_SHIFT] * 2;
ctx->split_key_pad_len = ALIGN(ctx->split_key_len, 16);
+ if (ctx->split_key_pad_len + keys.enckeylen > CAAM_MAX_KEY_SIZE)
+ goto badkey;
+
#ifdef DEBUG
printk(KERN_ERR "keylen %d enckeylen %d authkeylen %d\n",
- keylen, enckeylen, authkeylen);
+ keys.authkeylen + keys.enckeylen, keys.enckeylen,
+ keys.authkeylen);
printk(KERN_ERR "split_key_len %d split_key_pad_len %d\n",
ctx->split_key_len, ctx->split_key_pad_len);
print_hex_dump(KERN_ERR, "key in @"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
#endif
- ret = gen_split_aead_key(ctx, key, authkeylen);
+ ret = gen_split_aead_key(ctx, keys.authkey, keys.authkeylen);
if (ret) {
goto badkey;
}
/* postpend encryption key to auth split key */
- memcpy(ctx->key + ctx->split_key_pad_len, key + authkeylen, enckeylen);
+ memcpy(ctx->key + ctx->split_key_pad_len, keys.enckey, keys.enckeylen);
ctx->key_dma = dma_map_single(jrdev, ctx->key, ctx->split_key_pad_len +
- enckeylen, DMA_TO_DEVICE);
+ keys.enckeylen, DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, ctx->key_dma)) {
dev_err(jrdev, "unable to map key i/o memory\n");
return -ENOMEM;
@@ -518,15 +508,15 @@ static int aead_setkey(struct crypto_aead *aead,
#ifdef DEBUG
print_hex_dump(KERN_ERR, "ctx.key@"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, ctx->key,
- ctx->split_key_pad_len + enckeylen, 1);
+ ctx->split_key_pad_len + keys.enckeylen, 1);
#endif
- ctx->enckeylen = enckeylen;
+ ctx->enckeylen = keys.enckeylen;
ret = aead_set_sh_desc(aead);
if (ret) {
dma_unmap_single(jrdev, ctx->key_dma, ctx->split_key_pad_len +
- enckeylen, DMA_TO_DEVICE);
+ keys.enckeylen, DMA_TO_DEVICE);
}
return ret;
diff --git a/drivers/crypto/ccp/Kconfig b/drivers/crypto/ccp/Kconfig
new file mode 100644
index 000000000000..7639ffc36c68
--- /dev/null
+++ b/drivers/crypto/ccp/Kconfig
@@ -0,0 +1,24 @@
+config CRYPTO_DEV_CCP_DD
+ tristate "Cryptographic Coprocessor device driver"
+ depends on CRYPTO_DEV_CCP
+ default m
+ select HW_RANDOM
+ help
+ Provides the interface to use the AMD Cryptographic Coprocessor
+ which can be used to accelerate or offload encryption operations
+ such as SHA, AES and more. If you choose 'M' here, this module
+ will be called ccp.
+
+config CRYPTO_DEV_CCP_CRYPTO
+ tristate "Encryption and hashing acceleration support"
+ depends on CRYPTO_DEV_CCP_DD
+ default m
+ select CRYPTO_ALGAPI
+ select CRYPTO_HASH
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_AUTHENC
+ help
+ Support for using the cryptographic API with the AMD Cryptographic
+ Coprocessor. This module supports acceleration and offload of SHA
+ and AES algorithms. If you choose 'M' here, this module will be
+ called ccp_crypto.
diff --git a/drivers/crypto/ccp/Makefile b/drivers/crypto/ccp/Makefile
new file mode 100644
index 000000000000..d3505a018720
--- /dev/null
+++ b/drivers/crypto/ccp/Makefile
@@ -0,0 +1,10 @@
+obj-$(CONFIG_CRYPTO_DEV_CCP_DD) += ccp.o
+ccp-objs := ccp-dev.o ccp-ops.o
+ccp-objs += ccp-pci.o
+
+obj-$(CONFIG_CRYPTO_DEV_CCP_CRYPTO) += ccp-crypto.o
+ccp-crypto-objs := ccp-crypto-main.o \
+ ccp-crypto-aes.o \
+ ccp-crypto-aes-cmac.o \
+ ccp-crypto-aes-xts.o \
+ ccp-crypto-sha.o
diff --git a/drivers/crypto/ccp/ccp-crypto-aes-cmac.c b/drivers/crypto/ccp/ccp-crypto-aes-cmac.c
new file mode 100644
index 000000000000..8e162ad82085
--- /dev/null
+++ b/drivers/crypto/ccp/ccp-crypto-aes-cmac.c
@@ -0,0 +1,365 @@
+/*
+ * AMD Cryptographic Coprocessor (CCP) AES CMAC crypto API support
+ *
+ * Copyright (C) 2013 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/scatterlist.h>
+#include <linux/crypto.h>
+#include <crypto/algapi.h>
+#include <crypto/aes.h>
+#include <crypto/hash.h>
+#include <crypto/internal/hash.h>
+#include <crypto/scatterwalk.h>
+
+#include "ccp-crypto.h"
+
+
+static int ccp_aes_cmac_complete(struct crypto_async_request *async_req,
+ int ret)
+{
+ struct ahash_request *req = ahash_request_cast(async_req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ccp_aes_cmac_req_ctx *rctx = ahash_request_ctx(req);
+ unsigned int digest_size = crypto_ahash_digestsize(tfm);
+
+ if (ret)
+ goto e_free;
+
+ if (rctx->hash_rem) {
+ /* Save remaining data to buffer */
+ unsigned int offset = rctx->nbytes - rctx->hash_rem;
+ scatterwalk_map_and_copy(rctx->buf, rctx->src,
+ offset, rctx->hash_rem, 0);
+ rctx->buf_count = rctx->hash_rem;
+ } else
+ rctx->buf_count = 0;
+
+ /* Update result area if supplied */
+ if (req->result)
+ memcpy(req->result, rctx->iv, digest_size);
+
+e_free:
+ sg_free_table(&rctx->data_sg);
+
+ return ret;
+}
+
+static int ccp_do_cmac_update(struct ahash_request *req, unsigned int nbytes,
+ unsigned int final)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ccp_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct ccp_aes_cmac_req_ctx *rctx = ahash_request_ctx(req);
+ struct scatterlist *sg, *cmac_key_sg = NULL;
+ unsigned int block_size =
+ crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
+ unsigned int need_pad, sg_count;
+ gfp_t gfp;
+ u64 len;
+ int ret;
+
+ if (!ctx->u.aes.key_len)
+ return -EINVAL;
+
+ if (nbytes)
+ rctx->null_msg = 0;
+
+ len = (u64)rctx->buf_count + (u64)nbytes;
+
+ if (!final && (len <= block_size)) {
+ scatterwalk_map_and_copy(rctx->buf + rctx->buf_count, req->src,
+ 0, nbytes, 0);
+ rctx->buf_count += nbytes;
+
+ return 0;
+ }
+
+ rctx->src = req->src;
+ rctx->nbytes = nbytes;
+
+ rctx->final = final;
+ rctx->hash_rem = final ? 0 : len & (block_size - 1);
+ rctx->hash_cnt = len - rctx->hash_rem;
+ if (!final && !rctx->hash_rem) {
+ /* CCP can't do zero length final, so keep some data around */
+ rctx->hash_cnt -= block_size;
+ rctx->hash_rem = block_size;
+ }
+
+ if (final && (rctx->null_msg || (len & (block_size - 1))))
+ need_pad = 1;
+ else
+ need_pad = 0;
+
+ sg_init_one(&rctx->iv_sg, rctx->iv, sizeof(rctx->iv));
+
+ /* Build the data scatterlist table - allocate enough entries for all
+ * possible data pieces (buffer, input data, padding)
+ */
+ sg_count = (nbytes) ? sg_nents(req->src) + 2 : 2;
+ gfp = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
+ GFP_KERNEL : GFP_ATOMIC;
+ ret = sg_alloc_table(&rctx->data_sg, sg_count, gfp);
+ if (ret)
+ return ret;
+
+ sg = NULL;
+ if (rctx->buf_count) {
+ sg_init_one(&rctx->buf_sg, rctx->buf, rctx->buf_count);
+ sg = ccp_crypto_sg_table_add(&rctx->data_sg, &rctx->buf_sg);
+ }
+
+ if (nbytes)
+ sg = ccp_crypto_sg_table_add(&rctx->data_sg, req->src);
+
+ if (need_pad) {
+ int pad_length = block_size - (len & (block_size - 1));
+
+ rctx->hash_cnt += pad_length;
+
+ memset(rctx->pad, 0, sizeof(rctx->pad));
+ rctx->pad[0] = 0x80;
+ sg_init_one(&rctx->pad_sg, rctx->pad, pad_length);
+ sg = ccp_crypto_sg_table_add(&rctx->data_sg, &rctx->pad_sg);
+ }
+ if (sg) {
+ sg_mark_end(sg);
+ sg = rctx->data_sg.sgl;
+ }
+
+ /* Initialize the K1/K2 scatterlist */
+ if (final)
+ cmac_key_sg = (need_pad) ? &ctx->u.aes.k2_sg
+ : &ctx->u.aes.k1_sg;
+
+ memset(&rctx->cmd, 0, sizeof(rctx->cmd));
+ INIT_LIST_HEAD(&rctx->cmd.entry);
+ rctx->cmd.engine = CCP_ENGINE_AES;
+ rctx->cmd.u.aes.type = ctx->u.aes.type;
+ rctx->cmd.u.aes.mode = ctx->u.aes.mode;
+ rctx->cmd.u.aes.action = CCP_AES_ACTION_ENCRYPT;
+ rctx->cmd.u.aes.key = &ctx->u.aes.key_sg;
+ rctx->cmd.u.aes.key_len = ctx->u.aes.key_len;
+ rctx->cmd.u.aes.iv = &rctx->iv_sg;
+ rctx->cmd.u.aes.iv_len = AES_BLOCK_SIZE;
+ rctx->cmd.u.aes.src = sg;
+ rctx->cmd.u.aes.src_len = rctx->hash_cnt;
+ rctx->cmd.u.aes.dst = NULL;
+ rctx->cmd.u.aes.cmac_key = cmac_key_sg;
+ rctx->cmd.u.aes.cmac_key_len = ctx->u.aes.kn_len;
+ rctx->cmd.u.aes.cmac_final = final;
+
+ ret = ccp_crypto_enqueue_request(&req->base, &rctx->cmd);
+
+ return ret;
+}
+
+static int ccp_aes_cmac_init(struct ahash_request *req)
+{
+ struct ccp_aes_cmac_req_ctx *rctx = ahash_request_ctx(req);
+
+ memset(rctx, 0, sizeof(*rctx));
+
+ rctx->null_msg = 1;
+
+ return 0;
+}
+
+static int ccp_aes_cmac_update(struct ahash_request *req)
+{
+ return ccp_do_cmac_update(req, req->nbytes, 0);
+}
+
+static int ccp_aes_cmac_final(struct ahash_request *req)
+{
+ return ccp_do_cmac_update(req, 0, 1);
+}
+
+static int ccp_aes_cmac_finup(struct ahash_request *req)
+{
+ return ccp_do_cmac_update(req, req->nbytes, 1);
+}
+
+static int ccp_aes_cmac_digest(struct ahash_request *req)
+{
+ int ret;
+
+ ret = ccp_aes_cmac_init(req);
+ if (ret)
+ return ret;
+
+ return ccp_aes_cmac_finup(req);
+}
+
+static int ccp_aes_cmac_setkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int key_len)
+{
+ struct ccp_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
+ struct ccp_crypto_ahash_alg *alg =
+ ccp_crypto_ahash_alg(crypto_ahash_tfm(tfm));
+ u64 k0_hi, k0_lo, k1_hi, k1_lo, k2_hi, k2_lo;
+ u64 rb_hi = 0x00, rb_lo = 0x87;
+ __be64 *gk;
+ int ret;
+
+ switch (key_len) {
+ case AES_KEYSIZE_128:
+ ctx->u.aes.type = CCP_AES_TYPE_128;
+ break;
+ case AES_KEYSIZE_192:
+ ctx->u.aes.type = CCP_AES_TYPE_192;
+ break;
+ case AES_KEYSIZE_256:
+ ctx->u.aes.type = CCP_AES_TYPE_256;
+ break;
+ default:
+ crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+ }
+ ctx->u.aes.mode = alg->mode;
+
+ /* Set to zero until complete */
+ ctx->u.aes.key_len = 0;
+
+ /* Set the key for the AES cipher used to generate the keys */
+ ret = crypto_cipher_setkey(ctx->u.aes.tfm_cipher, key, key_len);
+ if (ret)
+ return ret;
+
+ /* Encrypt a block of zeroes - use key area in context */
+ memset(ctx->u.aes.key, 0, sizeof(ctx->u.aes.key));
+ crypto_cipher_encrypt_one(ctx->u.aes.tfm_cipher, ctx->u.aes.key,
+ ctx->u.aes.key);
+
+ /* Generate K1 and K2 */
+ k0_hi = be64_to_cpu(*((__be64 *)ctx->u.aes.key));
+ k0_lo = be64_to_cpu(*((__be64 *)ctx->u.aes.key + 1));
+
+ k1_hi = (k0_hi << 1) | (k0_lo >> 63);
+ k1_lo = k0_lo << 1;
+ if (ctx->u.aes.key[0] & 0x80) {
+ k1_hi ^= rb_hi;
+ k1_lo ^= rb_lo;
+ }
+ gk = (__be64 *)ctx->u.aes.k1;
+ *gk = cpu_to_be64(k1_hi);
+ gk++;
+ *gk = cpu_to_be64(k1_lo);
+
+ k2_hi = (k1_hi << 1) | (k1_lo >> 63);
+ k2_lo = k1_lo << 1;
+ if (ctx->u.aes.k1[0] & 0x80) {
+ k2_hi ^= rb_hi;
+ k2_lo ^= rb_lo;
+ }
+ gk = (__be64 *)ctx->u.aes.k2;
+ *gk = cpu_to_be64(k2_hi);
+ gk++;
+ *gk = cpu_to_be64(k2_lo);
+
+ ctx->u.aes.kn_len = sizeof(ctx->u.aes.k1);
+ sg_init_one(&ctx->u.aes.k1_sg, ctx->u.aes.k1, sizeof(ctx->u.aes.k1));
+ sg_init_one(&ctx->u.aes.k2_sg, ctx->u.aes.k2, sizeof(ctx->u.aes.k2));
+
+ /* Save the supplied key */
+ memset(ctx->u.aes.key, 0, sizeof(ctx->u.aes.key));
+ memcpy(ctx->u.aes.key, key, key_len);
+ ctx->u.aes.key_len = key_len;
+ sg_init_one(&ctx->u.aes.key_sg, ctx->u.aes.key, key_len);
+
+ return ret;
+}
+
+static int ccp_aes_cmac_cra_init(struct crypto_tfm *tfm)
+{
+ struct ccp_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
+ struct crypto_cipher *cipher_tfm;
+
+ ctx->complete = ccp_aes_cmac_complete;
+ ctx->u.aes.key_len = 0;
+
+ crypto_ahash_set_reqsize(ahash, sizeof(struct ccp_aes_cmac_req_ctx));
+
+ cipher_tfm = crypto_alloc_cipher("aes", 0,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
+ if (IS_ERR(cipher_tfm)) {
+ pr_warn("could not load aes cipher driver\n");
+ return PTR_ERR(cipher_tfm);
+ }
+ ctx->u.aes.tfm_cipher = cipher_tfm;
+
+ return 0;
+}
+
+static void ccp_aes_cmac_cra_exit(struct crypto_tfm *tfm)
+{
+ struct ccp_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ if (ctx->u.aes.tfm_cipher)
+ crypto_free_cipher(ctx->u.aes.tfm_cipher);
+ ctx->u.aes.tfm_cipher = NULL;
+}
+
+int ccp_register_aes_cmac_algs(struct list_head *head)
+{
+ struct ccp_crypto_ahash_alg *ccp_alg;
+ struct ahash_alg *alg;
+ struct hash_alg_common *halg;
+ struct crypto_alg *base;
+ int ret;
+
+ ccp_alg = kzalloc(sizeof(*ccp_alg), GFP_KERNEL);
+ if (!ccp_alg)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&ccp_alg->entry);
+ ccp_alg->mode = CCP_AES_MODE_CMAC;
+
+ alg = &ccp_alg->alg;
+ alg->init = ccp_aes_cmac_init;
+ alg->update = ccp_aes_cmac_update;
+ alg->final = ccp_aes_cmac_final;
+ alg->finup = ccp_aes_cmac_finup;
+ alg->digest = ccp_aes_cmac_digest;
+ alg->setkey = ccp_aes_cmac_setkey;
+
+ halg = &alg->halg;
+ halg->digestsize = AES_BLOCK_SIZE;
+
+ base = &halg->base;
+ snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "cmac(aes)");
+ snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "cmac-aes-ccp");
+ base->cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_NEED_FALLBACK;
+ base->cra_blocksize = AES_BLOCK_SIZE;
+ base->cra_ctxsize = sizeof(struct ccp_ctx);
+ base->cra_priority = CCP_CRA_PRIORITY;
+ base->cra_type = &crypto_ahash_type;
+ base->cra_init = ccp_aes_cmac_cra_init;
+ base->cra_exit = ccp_aes_cmac_cra_exit;
+ base->cra_module = THIS_MODULE;
+
+ ret = crypto_register_ahash(alg);
+ if (ret) {
+ pr_err("%s ahash algorithm registration error (%d)\n",
+ base->cra_name, ret);
+ kfree(ccp_alg);
+ return ret;
+ }
+
+ list_add(&ccp_alg->entry, head);
+
+ return 0;
+}
diff --git a/drivers/crypto/ccp/ccp-crypto-aes-xts.c b/drivers/crypto/ccp/ccp-crypto-aes-xts.c
new file mode 100644
index 000000000000..0237ab58f242
--- /dev/null
+++ b/drivers/crypto/ccp/ccp-crypto-aes-xts.c
@@ -0,0 +1,279 @@
+/*
+ * AMD Cryptographic Coprocessor (CCP) AES XTS crypto API support
+ *
+ * Copyright (C) 2013 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/scatterlist.h>
+#include <linux/crypto.h>
+#include <crypto/algapi.h>
+#include <crypto/aes.h>
+#include <crypto/scatterwalk.h>
+
+#include "ccp-crypto.h"
+
+
+struct ccp_aes_xts_def {
+ const char *name;
+ const char *drv_name;
+};
+
+static struct ccp_aes_xts_def aes_xts_algs[] = {
+ {
+ .name = "xts(aes)",
+ .drv_name = "xts-aes-ccp",
+ },
+};
+
+struct ccp_unit_size_map {
+ unsigned int size;
+ u32 value;
+};
+
+static struct ccp_unit_size_map unit_size_map[] = {
+ {
+ .size = 4096,
+ .value = CCP_XTS_AES_UNIT_SIZE_4096,
+ },
+ {
+ .size = 2048,
+ .value = CCP_XTS_AES_UNIT_SIZE_2048,
+ },
+ {
+ .size = 1024,
+ .value = CCP_XTS_AES_UNIT_SIZE_1024,
+ },
+ {
+ .size = 512,
+ .value = CCP_XTS_AES_UNIT_SIZE_512,
+ },
+ {
+ .size = 256,
+ .value = CCP_XTS_AES_UNIT_SIZE__LAST,
+ },
+ {
+ .size = 128,
+ .value = CCP_XTS_AES_UNIT_SIZE__LAST,
+ },
+ {
+ .size = 64,
+ .value = CCP_XTS_AES_UNIT_SIZE__LAST,
+ },
+ {
+ .size = 32,
+ .value = CCP_XTS_AES_UNIT_SIZE__LAST,
+ },
+ {
+ .size = 16,
+ .value = CCP_XTS_AES_UNIT_SIZE_16,
+ },
+ {
+ .size = 1,
+ .value = CCP_XTS_AES_UNIT_SIZE__LAST,
+ },
+};
+
+static int ccp_aes_xts_complete(struct crypto_async_request *async_req, int ret)
+{
+ struct ablkcipher_request *req = ablkcipher_request_cast(async_req);
+ struct ccp_aes_req_ctx *rctx = ablkcipher_request_ctx(req);
+
+ if (ret)
+ return ret;
+
+ memcpy(req->info, rctx->iv, AES_BLOCK_SIZE);
+
+ return 0;
+}
+
+static int ccp_aes_xts_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
+ unsigned int key_len)
+{
+ struct ccp_ctx *ctx = crypto_tfm_ctx(crypto_ablkcipher_tfm(tfm));
+
+ /* Only support 128-bit AES key with a 128-bit Tweak key,
+ * otherwise use the fallback
+ */
+ switch (key_len) {
+ case AES_KEYSIZE_128 * 2:
+ memcpy(ctx->u.aes.key, key, key_len);
+ break;
+ }
+ ctx->u.aes.key_len = key_len / 2;
+ sg_init_one(&ctx->u.aes.key_sg, ctx->u.aes.key, key_len);
+
+ return crypto_ablkcipher_setkey(ctx->u.aes.tfm_ablkcipher, key,
+ key_len);
+}
+
+static int ccp_aes_xts_crypt(struct ablkcipher_request *req,
+ unsigned int encrypt)
+{
+ struct crypto_tfm *tfm =
+ crypto_ablkcipher_tfm(crypto_ablkcipher_reqtfm(req));
+ struct ccp_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+ struct ccp_aes_req_ctx *rctx = ablkcipher_request_ctx(req);
+ unsigned int unit;
+ int ret;
+
+ if (!ctx->u.aes.key_len)
+ return -EINVAL;
+
+ if (req->nbytes & (AES_BLOCK_SIZE - 1))
+ return -EINVAL;
+
+ if (!req->info)
+ return -EINVAL;
+
+ for (unit = 0; unit < ARRAY_SIZE(unit_size_map); unit++)
+ if (!(req->nbytes & (unit_size_map[unit].size - 1)))
+ break;
+
+ if ((unit_size_map[unit].value == CCP_XTS_AES_UNIT_SIZE__LAST) ||
+ (ctx->u.aes.key_len != AES_KEYSIZE_128)) {
+ /* Use the fallback to process the request for any
+ * unsupported unit sizes or key sizes
+ */
+ ablkcipher_request_set_tfm(req, ctx->u.aes.tfm_ablkcipher);
+ ret = (encrypt) ? crypto_ablkcipher_encrypt(req) :
+ crypto_ablkcipher_decrypt(req);
+ ablkcipher_request_set_tfm(req, __crypto_ablkcipher_cast(tfm));
+
+ return ret;
+ }
+
+ memcpy(rctx->iv, req->info, AES_BLOCK_SIZE);
+ sg_init_one(&rctx->iv_sg, rctx->iv, AES_BLOCK_SIZE);
+
+ memset(&rctx->cmd, 0, sizeof(rctx->cmd));
+ INIT_LIST_HEAD(&rctx->cmd.entry);
+ rctx->cmd.engine = CCP_ENGINE_XTS_AES_128;
+ rctx->cmd.u.xts.action = (encrypt) ? CCP_AES_ACTION_ENCRYPT
+ : CCP_AES_ACTION_DECRYPT;
+ rctx->cmd.u.xts.unit_size = unit_size_map[unit].value;
+ rctx->cmd.u.xts.key = &ctx->u.aes.key_sg;
+ rctx->cmd.u.xts.key_len = ctx->u.aes.key_len;
+ rctx->cmd.u.xts.iv = &rctx->iv_sg;
+ rctx->cmd.u.xts.iv_len = AES_BLOCK_SIZE;
+ rctx->cmd.u.xts.src = req->src;
+ rctx->cmd.u.xts.src_len = req->nbytes;
+ rctx->cmd.u.xts.dst = req->dst;
+
+ ret = ccp_crypto_enqueue_request(&req->base, &rctx->cmd);
+
+ return ret;
+}
+
+static int ccp_aes_xts_encrypt(struct ablkcipher_request *req)
+{
+ return ccp_aes_xts_crypt(req, 1);
+}
+
+static int ccp_aes_xts_decrypt(struct ablkcipher_request *req)
+{
+ return ccp_aes_xts_crypt(req, 0);
+}
+
+static int ccp_aes_xts_cra_init(struct crypto_tfm *tfm)
+{
+ struct ccp_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct crypto_ablkcipher *fallback_tfm;
+
+ ctx->complete = ccp_aes_xts_complete;
+ ctx->u.aes.key_len = 0;
+
+ fallback_tfm = crypto_alloc_ablkcipher(tfm->__crt_alg->cra_name, 0,
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK);
+ if (IS_ERR(fallback_tfm)) {
+ pr_warn("could not load fallback driver %s\n",
+ tfm->__crt_alg->cra_name);
+ return PTR_ERR(fallback_tfm);
+ }
+ ctx->u.aes.tfm_ablkcipher = fallback_tfm;
+
+ tfm->crt_ablkcipher.reqsize = sizeof(struct ccp_aes_req_ctx) +
+ fallback_tfm->base.crt_ablkcipher.reqsize;
+
+ return 0;
+}
+
+static void ccp_aes_xts_cra_exit(struct crypto_tfm *tfm)
+{
+ struct ccp_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ if (ctx->u.aes.tfm_ablkcipher)
+ crypto_free_ablkcipher(ctx->u.aes.tfm_ablkcipher);
+ ctx->u.aes.tfm_ablkcipher = NULL;
+}
+
+
+static int ccp_register_aes_xts_alg(struct list_head *head,
+ const struct ccp_aes_xts_def *def)
+{
+ struct ccp_crypto_ablkcipher_alg *ccp_alg;
+ struct crypto_alg *alg;
+ int ret;
+
+ ccp_alg = kzalloc(sizeof(*ccp_alg), GFP_KERNEL);
+ if (!ccp_alg)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&ccp_alg->entry);
+
+ alg = &ccp_alg->alg;
+
+ snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name);
+ snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
+ def->drv_name);
+ alg->cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_NEED_FALLBACK;
+ alg->cra_blocksize = AES_BLOCK_SIZE;
+ alg->cra_ctxsize = sizeof(struct ccp_ctx);
+ alg->cra_priority = CCP_CRA_PRIORITY;
+ alg->cra_type = &crypto_ablkcipher_type;
+ alg->cra_ablkcipher.setkey = ccp_aes_xts_setkey;
+ alg->cra_ablkcipher.encrypt = ccp_aes_xts_encrypt;
+ alg->cra_ablkcipher.decrypt = ccp_aes_xts_decrypt;
+ alg->cra_ablkcipher.min_keysize = AES_MIN_KEY_SIZE * 2;
+ alg->cra_ablkcipher.max_keysize = AES_MAX_KEY_SIZE * 2;
+ alg->cra_ablkcipher.ivsize = AES_BLOCK_SIZE;
+ alg->cra_init = ccp_aes_xts_cra_init;
+ alg->cra_exit = ccp_aes_xts_cra_exit;
+ alg->cra_module = THIS_MODULE;
+
+ ret = crypto_register_alg(alg);
+ if (ret) {
+ pr_err("%s ablkcipher algorithm registration error (%d)\n",
+ alg->cra_name, ret);
+ kfree(ccp_alg);
+ return ret;
+ }
+
+ list_add(&ccp_alg->entry, head);
+
+ return 0;
+}
+
+int ccp_register_aes_xts_algs(struct list_head *head)
+{
+ int i, ret;
+
+ for (i = 0; i < ARRAY_SIZE(aes_xts_algs); i++) {
+ ret = ccp_register_aes_xts_alg(head, &aes_xts_algs[i]);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
diff --git a/drivers/crypto/ccp/ccp-crypto-aes.c b/drivers/crypto/ccp/ccp-crypto-aes.c
new file mode 100644
index 000000000000..e46490db0f63
--- /dev/null
+++ b/drivers/crypto/ccp/ccp-crypto-aes.c
@@ -0,0 +1,369 @@
+/*
+ * AMD Cryptographic Coprocessor (CCP) AES crypto API support
+ *
+ * Copyright (C) 2013 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/delay.h>