From: "Chang S. Bae" <chang.seok.bae@intel.com>
To: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
dm-devel@redhat.com
Cc: ebiggers@kernel.org, elliott@hpe.com, gmazyland@gmail.com,
luto@kernel.org, dave.hansen@linux.intel.com, tglx@linutronix.de,
bp@alien8.de, mingo@kernel.org, x86@kernel.org,
herbert@gondor.apana.org.au, ardb@kernel.org,
dan.j.williams@intel.com, bernie.keany@intel.com,
charishma1.gairuboyina@intel.com,
lalithambika.krishnakumar@intel.com, nhuck@google.com,
chang.seok.bae@intel.com, "David S. Miller" <davem@davemloft.net>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH v8 10/12] crypto: x86/aesni - Use the proper data type in struct aesni_xts_ctx
Date: Sat, 3 Jun 2023 08:22:25 -0700 [thread overview]
Message-ID: <20230603152227.12335-11-chang.seok.bae@intel.com> (raw)
In-Reply-To: <20230603152227.12335-1-chang.seok.bae@intel.com>
Every field in struct aesni_xts_ctx is a pointer to a byte array. Each
array has a size of struct crypto_aes_ctx. Then, the field can be
redefined as that struct type instead of the obscure pointer.
Subsequently, the address to struct aesni_xts_ctx should be aligned
right away rather than on every access to the field.
Thus, redefine struct aesni_xts_ctx, and align its address on the
front. This draws a rework by refactoring the common alignment code.
Then, the refactored code itself appears to be useful to simplify
the overall runtime alignment. So, use it for other modes.
Suggested-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
Changes from v7:
* Massage the helper function to be usable for other alignment code
such as aesni_rfc4106_gcm_ctx_get() and generic_gcmaes_ctx_get().
(Eric Biggers)
Changes from v6:
* Add as a new patch. (Eric Biggers)
This fix was considered to be better addressed before the preparatory
AES-NI code rework.
---
arch/x86/crypto/aesni-intel_glue.c | 51 +++++++++++++++---------------
1 file changed, 25 insertions(+), 26 deletions(-)
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index a5b0cb3efeba..589648142c17 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -61,8 +61,8 @@ struct generic_gcmaes_ctx {
};
struct aesni_xts_ctx {
- u8 raw_tweak_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR;
- u8 raw_crypt_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR;
+ struct crypto_aes_ctx tweak_ctx AESNI_ALIGN_ATTR;
+ struct crypto_aes_ctx crypt_ctx AESNI_ALIGN_ATTR;
};
#define GCM_BLOCK_LEN 16
@@ -80,6 +80,13 @@ struct gcm_context_data {
u8 hash_keys[GCM_BLOCK_LEN * 16];
};
+static inline void *aes_align_addr(void *addr)
+{
+ if (crypto_tfm_ctx_alignment() >= AESNI_ALIGN)
+ return addr;
+ return PTR_ALIGN(addr, AESNI_ALIGN);
+}
+
asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
unsigned int key_len);
asmlinkage void aesni_enc(const void *ctx, u8 *out, const u8 *in);
@@ -201,32 +208,24 @@ static __ro_after_init DEFINE_STATIC_KEY_FALSE(gcm_use_avx2);
static inline struct
aesni_rfc4106_gcm_ctx *aesni_rfc4106_gcm_ctx_get(struct crypto_aead *tfm)
{
- unsigned long align = AESNI_ALIGN;
-
- if (align <= crypto_tfm_ctx_alignment())
- align = 1;
- return PTR_ALIGN(crypto_aead_ctx(tfm), align);
+ return (struct aesni_rfc4106_gcm_ctx *)aes_align_addr(crypto_aead_ctx(tfm));
}
static inline struct
generic_gcmaes_ctx *generic_gcmaes_ctx_get(struct crypto_aead *tfm)
{
- unsigned long align = AESNI_ALIGN;
-
- if (align <= crypto_tfm_ctx_alignment())
- align = 1;
- return PTR_ALIGN(crypto_aead_ctx(tfm), align);
+ return (struct generic_gcmaes_ctx *)aes_align_addr(crypto_aead_ctx(tfm));
}
#endif
static inline struct crypto_aes_ctx *aes_ctx(void *raw_ctx)
{
- unsigned long addr = (unsigned long)raw_ctx;
- unsigned long align = AESNI_ALIGN;
+ return (struct crypto_aes_ctx *)aes_align_addr(raw_ctx);
+}
- if (align <= crypto_tfm_ctx_alignment())
- align = 1;
- return (struct crypto_aes_ctx *)ALIGN(addr, align);
+static inline struct aesni_xts_ctx *aes_xts_ctx(struct crypto_skcipher *tfm)
+{
+ return (struct aesni_xts_ctx *)aes_align_addr(crypto_skcipher_ctx(tfm));
}
static int aes_set_key_common(struct crypto_tfm *tfm, void *raw_ctx,
@@ -883,7 +882,7 @@ static int helper_rfc4106_decrypt(struct aead_request *req)
static int xts_aesni_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
- struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct aesni_xts_ctx *ctx = aes_xts_ctx(tfm);
int err;
err = xts_verify_key(tfm, key, keylen);
@@ -893,20 +892,20 @@ static int xts_aesni_setkey(struct crypto_skcipher *tfm, const u8 *key,
keylen /= 2;
/* first half of xts-key is for crypt */
- err = aes_set_key_common(crypto_skcipher_tfm(tfm), ctx->raw_crypt_ctx,
+ err = aes_set_key_common(crypto_skcipher_tfm(tfm), &ctx->crypt_ctx,
key, keylen);
if (err)
return err;
/* second half of xts-key is for tweak */
- return aes_set_key_common(crypto_skcipher_tfm(tfm), ctx->raw_tweak_ctx,
+ return aes_set_key_common(crypto_skcipher_tfm(tfm), &ctx->tweak_ctx,
key + keylen, keylen);
}
static int xts_crypt(struct skcipher_request *req, bool encrypt)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct aesni_xts_ctx *ctx = aes_xts_ctx(tfm);
int tail = req->cryptlen % AES_BLOCK_SIZE;
struct skcipher_request subreq;
struct skcipher_walk walk;
@@ -942,7 +941,7 @@ static int xts_crypt(struct skcipher_request *req, bool encrypt)
kernel_fpu_begin();
/* calculate first value of T */
- aesni_enc(aes_ctx(ctx->raw_tweak_ctx), walk.iv, walk.iv);
+ aesni_enc(&ctx->tweak_ctx, walk.iv, walk.iv);
while (walk.nbytes > 0) {
int nbytes = walk.nbytes;
@@ -951,11 +950,11 @@ static int xts_crypt(struct skcipher_request *req, bool encrypt)
nbytes &= ~(AES_BLOCK_SIZE - 1);
if (encrypt)
- aesni_xts_encrypt(aes_ctx(ctx->raw_crypt_ctx),
+ aesni_xts_encrypt(&ctx->crypt_ctx,
walk.dst.virt.addr, walk.src.virt.addr,
nbytes, walk.iv);
else
- aesni_xts_decrypt(aes_ctx(ctx->raw_crypt_ctx),
+ aesni_xts_decrypt(&ctx->crypt_ctx,
walk.dst.virt.addr, walk.src.virt.addr,
nbytes, walk.iv);
kernel_fpu_end();
@@ -983,11 +982,11 @@ static int xts_crypt(struct skcipher_request *req, bool encrypt)
kernel_fpu_begin();
if (encrypt)
- aesni_xts_encrypt(aes_ctx(ctx->raw_crypt_ctx),
+ aesni_xts_encrypt(&ctx->crypt_ctx,
walk.dst.virt.addr, walk.src.virt.addr,
walk.nbytes, walk.iv);
else
- aesni_xts_decrypt(aes_ctx(ctx->raw_crypt_ctx),
+ aesni_xts_decrypt(&ctx->crypt_ctx,
walk.dst.virt.addr, walk.src.virt.addr,
walk.nbytes, walk.iv);
kernel_fpu_end();
--
2.17.1
next prev parent reply other threads:[~2023-06-03 15:35 UTC|newest]
Thread overview: 147+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-12 21:12 [PATCH v5 00/12] x86: Support Key Locker Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 01/12] Documentation/x86: Document " Chang S. Bae
2023-06-05 10:52 ` Bagas Sanjaya
2022-01-12 21:12 ` [PATCH v5 02/12] x86/cpufeature: Enumerate Key Locker feature Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 03/12] x86/insn: Add Key Locker instructions to the opcode map Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 04/12] x86/asm: Add a wrapper function for the LOADIWKEY instruction Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 05/12] x86/msr-index: Add MSRs for Key Locker internal wrapping key Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 06/12] x86/keylocker: Define Key Locker CPUID leaf Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 07/12] x86/cpu/keylocker: Load an internal wrapping key at boot-time Chang S. Bae
2022-08-23 15:49 ` Evan Green
2022-08-24 22:20 ` Chang S. Bae
2022-08-24 22:52 ` Evan Green
2022-08-25 1:06 ` Chang S. Bae
2022-08-25 15:31 ` Evan Green
2022-08-31 23:08 ` Chang S. Bae
2022-09-06 16:22 ` Evan Green
2022-09-06 16:46 ` Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 08/12] x86/PM/keylocker: Restore internal wrapping key on resume from ACPI S3/4 Chang S. Bae
2022-01-29 17:31 ` [PATCH v5-fix " Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 09/12] x86/cpu: Add a configuration and command line option for Key Locker Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 10/12] crypto: x86/aes - Prepare for a new AES implementation Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 11/12] crypto: x86/aes-kl - Support AES algorithm using Key Locker instructions Chang S. Bae
2022-01-12 21:12 ` [PATCH v5 12/12] crypto: x86/aes-kl - Support XTS mode Chang S. Bae
2022-01-13 22:16 ` [PATCH v5 00/12] x86: Support Key Locker Dave Hansen
2022-01-13 22:34 ` Bae, Chang Seok
2023-04-10 22:59 ` [PATCH v6 " Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 01/12] Documentation/x86: Document " Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 02/12] x86/cpufeature: Enumerate Key Locker feature Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 03/12] x86/insn: Add Key Locker instructions to the opcode map Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 04/12] x86/asm: Add a wrapper function for the LOADIWKEY instruction Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 05/12] x86/msr-index: Add MSRs for Key Locker internal wrapping key Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 06/12] x86/keylocker: Define Key Locker CPUID leaf Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 07/12] x86/cpu/keylocker: Load an internal wrapping key at boot-time Chang S. Bae
2023-05-05 23:05 ` Eric Biggers
2023-05-08 18:18 ` Chang S. Bae
2023-05-08 21:56 ` Dave Hansen
2023-05-09 0:31 ` Chang S. Bae
2023-05-09 0:51 ` Dave Hansen
2023-05-08 19:18 ` Elliott, Robert (Servers)
2023-05-08 20:15 ` Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 08/12] x86/PM/keylocker: Restore internal wrapping key on resume from ACPI S3/4 Chang S. Bae
2023-05-05 23:09 ` Eric Biggers
2023-05-08 18:18 ` Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 09/12] x86/cpu: Add a configuration and command line option for Key Locker Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 10/12] crypto: x86/aes - Prepare for a new AES implementation Chang S. Bae
2023-05-05 23:27 ` Eric Biggers
2023-05-09 0:55 ` Chang S. Bae
2023-05-11 19:05 ` Chang S. Bae
2023-05-11 21:39 ` Eric Biggers
2023-05-11 23:19 ` Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 11/12] crypto: x86/aes-kl - Support AES algorithm using Key Locker instructions Chang S. Bae
2023-05-06 0:01 ` Eric Biggers
2023-05-08 18:18 ` Chang S. Bae
2023-05-24 17:18 ` Chang S. Bae
2023-05-12 17:52 ` Milan Broz
2023-05-08 19:21 ` Elliott, Robert (Servers)
2023-05-08 19:24 ` Elliott, Robert (Servers)
2023-05-08 20:00 ` Chang S. Bae
2023-04-10 22:59 ` [PATCH v6 12/12] crypto: x86/aes-kl - Support XTS mode Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 00/12] x86: Support Key Locker Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 01/12] Documentation/x86: Document " Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 02/12] x86/cpufeature: Enumerate Key Locker feature Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 03/12] x86/insn: Add Key Locker instructions to the opcode map Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 04/12] x86/asm: Add a wrapper function for the LOADIWKEY instruction Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 05/12] x86/msr-index: Add MSRs for Key Locker wrapping key Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 06/12] x86/keylocker: Define Key Locker CPUID leaf Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 07/12] x86/cpu/keylocker: Load a wrapping key at boot-time Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 08/12] x86/PM/keylocker: Restore the wrapping key on the resume from ACPI S3/4 Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 09/12] x86/cpu: Add a configuration and command line option for Key Locker Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 10/12] crypto: x86/aesni - Use the proper data type in struct aesni_xts_ctx Chang S. Bae
2023-05-26 6:54 ` Eric Biggers
2023-05-30 20:50 ` Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 11/12] crypto: x86/aes - Prepare for a new AES implementation Chang S. Bae
2023-05-24 16:57 ` [PATCH v7 12/12] crypto: x86/aes-kl - Implement the AES-XTS algorithm Chang S. Bae
2023-05-26 7:23 ` Eric Biggers
2023-05-30 20:49 ` Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 00/12] x86: Support Key Locker Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 01/12] Documentation/x86: Document " Chang S. Bae
2023-06-05 10:54 ` Bagas Sanjaya
2023-06-06 2:17 ` Randy Dunlap
2023-06-06 4:18 ` Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 02/12] x86/cpufeature: Enumerate Key Locker feature Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 03/12] x86/insn: Add Key Locker instructions to the opcode map Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 04/12] x86/asm: Add a wrapper function for the LOADIWKEY instruction Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 05/12] x86/msr-index: Add MSRs for Key Locker wrapping key Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 06/12] x86/keylocker: Define Key Locker CPUID leaf Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 07/12] x86/cpu/keylocker: Load a wrapping key at boot-time Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 08/12] x86/PM/keylocker: Restore the wrapping key on the resume from ACPI S3/4 Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 09/12] x86/cpu: Add a configuration and command line option for Key Locker Chang S. Bae
2023-06-03 16:37 ` Borislav Petkov
2023-06-04 22:13 ` Chang S. Bae
2023-06-03 15:22 ` Chang S. Bae [this message]
2023-06-04 15:34 ` [PATCH v8 10/12] crypto: x86/aesni - Use the proper data type in struct aesni_xts_ctx Eric Biggers
2023-06-04 22:02 ` Chang S. Bae
2023-06-05 2:46 ` Eric Biggers
2023-06-05 4:41 ` Chang S. Bae
2023-06-21 12:06 ` [PATCH] crypto: x86/aesni: Align the address before aes_set_key_common() Chang S. Bae
2023-07-14 8:51 ` Herbert Xu
2023-06-03 15:22 ` [PATCH v8 11/12] crypto: x86/aes - Prepare for a new AES-XTS implementation Chang S. Bae
2023-06-03 15:22 ` [PATCH v8 12/12] crypto: x86/aes-kl - Implement the AES-XTS algorithm Chang S. Bae
2023-06-07 5:35 ` Eric Biggers
2023-06-07 22:06 ` Chang S. Bae
2024-03-11 21:32 ` [PATCH] crypto: x86/aesni - Update aesni_set_key() to return void Chang S. Bae
2024-03-12 2:15 ` Eric Biggers
2024-03-12 7:46 ` Ard Biesheuvel
2024-03-12 15:03 ` Chang S. Bae
2024-03-12 15:18 ` Ard Biesheuvel
2024-03-12 15:37 ` Chang S. Bae
2024-03-22 23:04 ` [PATCH v2 0/2] crypto: x86/aesni - Simplify AES key expansion code Chang S. Bae
2024-03-22 23:04 ` [PATCH v2 1/2] crypto: x86/aesni - Rearrange AES key size check Chang S. Bae
2024-03-22 23:04 ` [PATCH v2 2/2] crypto: x86/aesni - Update aesni_set_key() to return void Chang S. Bae
2024-03-28 10:57 ` [PATCH v2 0/2] crypto: x86/aesni - Simplify AES key expansion code Herbert Xu
2024-03-29 1:53 ` [PATCH v9 00/14] x86: Support Key Locker Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 01/14] Documentation/x86: Document " Chang S. Bae
2024-03-31 15:48 ` Randy Dunlap
2024-03-29 1:53 ` [PATCH v9 02/14] x86/cpufeature: Enumerate Key Locker feature Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 03/14] x86/insn: Add Key Locker instructions to the opcode map Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 04/14] x86/asm: Add a wrapper function for the LOADIWKEY instruction Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 05/14] x86/msr-index: Add MSRs for Key Locker wrapping key Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 06/14] x86/keylocker: Define Key Locker CPUID leaf Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 07/14] x86/cpu/keylocker: Load a wrapping key at boot time Chang S. Bae
2024-04-07 23:04 ` [PATCH v9a " Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 08/14] x86/PM/keylocker: Restore the wrapping key on the resume from ACPI S3/4 Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 09/14] x86/hotplug/keylocker: Ensure wrapping key backup capability Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 10/14] x86/cpu/keylocker: Check Gather Data Sampling mitigation Chang S. Bae
2024-03-29 6:57 ` Pawan Gupta
2024-04-07 23:04 ` [PATCH v9a " Chang S. Bae
2024-04-19 0:01 ` Pawan Gupta
2024-04-22 7:49 ` Chang S. Bae
2024-04-19 17:47 ` [PATCH 15/14] x86/gds: Lock GDS mitigation when keylocker feature is present Pawan Gupta
2024-04-19 18:03 ` Daniel Sneddon
2024-04-19 20:19 ` Pawan Gupta
2024-04-19 20:33 ` Daniel Sneddon
2024-04-22 7:35 ` Chang S. Bae
2024-04-22 21:32 ` Pawan Gupta
2024-04-22 22:13 ` Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 11/14] x86/cpu/keylocker: Check Register File Data Sampling mitigation Chang S. Bae
2024-03-29 6:20 ` Pawan Gupta
2024-04-07 23:04 ` [PATCH v9a " Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 12/14] x86/Kconfig: Add a configuration for Key Locker Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 13/14] crypto: x86/aes - Prepare for new AES-XTS implementation Chang S. Bae
2024-03-29 1:53 ` [PATCH v9 14/14] crypto: x86/aes-kl - Implement the AES-XTS algorithm Chang S. Bae
2024-04-07 23:24 ` [PATCH v9 00/14] x86: Support Key Locker Chang S. Bae
2024-04-08 1:48 ` Eric Biggers
2024-04-15 22:16 ` Chang S. Bae
2024-04-15 22:54 ` Eric Biggers
2024-04-15 22:58 ` Chang S. Bae
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