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- 04 Dec, 2020 6 commits
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Uros Bizjak authored
CMP $0,%reg can't set overflow flag, so we can use shorter TEST %reg,%reg instruction when only zero and sign flags are checked (E,L,LE,G,GE conditions). Signed-off-by:
Uros Bizjak <ubizjak@gmail.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au>
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Herbert Xu authored
This patch fixes a few sparse warnings that were missed in the last round. Signed-off-by: -
Herbert Xu authored
This patch adds a dependency for KEYSTONE on HAS_IOMEM and OF to prevent COMPILE_TEST build failures. Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
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Herbert Xu authored
This patch fixes a missing prototype warning on blake2s_selftest. Reported-by:
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Ard Biesheuvel authored
ARM Cortex-A57 and Cortex-A72 cores running in 32-bit mode are affected by silicon errata #1742098 and #1655431, respectively, where the second instruction of a AES instruction pair may execute twice if an interrupt is taken right after the first instruction consumes an input register of which a single 32-bit lane has been updated the last time it was modified. This is not such a rare occurrence as it may seem: in counter mode, only the least significant 32-bit word is incremented in the absence of a carry, which makes our counter mode implementation susceptible to these errata. So let's shuffle the counter assignments around a bit so that the most recent updates when the AES instruction pair executes are 128-bit wide. [0] ARM-EPM-049219 v23 Cortex-A57 MPCore Software Developers Errata Notice [1] ARM-EPM-012079 v11.0 Cortex-A72 MPCore Software Developers Errata Notice Cc: <stable@vger.kernel.org> # v5.4+ Signed-off-by:
Ard Biesheuvel <ardb@kernel.org> Signed-off-by:
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Ard Biesheuvel authored
ecdh_set_secret() casts a void* pointer to a const u64* in order to feed it into ecc_is_key_valid(). This is not generally permitted by the C standard, and leads to actual misalignment faults on ARMv6 cores. In some cases, these are fixed up in software, but this still leads to performance hits that are entirely avoidable. So let's copy the key into the ctx buffer first, which we will do anyway in the common case, and which guarantees correct alignment. Cc: <stable@vger.kernel.org> Signed-off-by:
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- 27 Nov, 2020 22 commits
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Gilad Ben-Yossef authored
Rework the setting of DMA cache parameters, program more appropriate values and explicitly set sharability domain. Signed-off-by:
Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by:
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Christophe JAILLET authored
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by an equivalent 'dma_set_mask_and_coherent()' which is much less verbose. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
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Christophe JAILLET authored
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by an equivalent 'dma_set_mask_and_coherent()' which is much less verbose. Signed-off-by:
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Christophe JAILLET authored
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by an equivalent 'dma_set_mask_and_coherent()' which is much less verbose. Signed-off-by:
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Gustavo A. R. Silva authored
In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple warnings by explicitly adding multiple break statements instead of letting the code fall through to the next case. Link: https://github.com/KSPP/linux/issues/115Signed-off-by:
Gustavo A. R. Silva <gustavoars@kernel.org> Acked-by:
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Ard Biesheuvel authored
WireGuard and IPsec both typically operate on input blocks that are ~1420 bytes in size, given the default Ethernet MTU of 1500 bytes and the overhead of the VPN metadata. Many aead and sckipher implementations are optimized for power-of-2 block sizes, and whether they perform well when operating on 1420 byte blocks cannot be easily extrapolated from the performance on power-of-2 block size. So let's add 1420 bytes explicitly, and round it up to the next blocksize multiple of the algo in question if it does not support 1420 byte blocks. Signed-off-by:
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Ard Biesheuvel authored
When working on crypto algorithms, being able to run tcrypt quickly without booting an entire Linux installation can be very useful. For instance, QEMU/kvm can be used to boot a kernel from the command line, and having tcrypt.ko builtin would allow tcrypt to be executed to run benchmarks, or to run tests for algorithms that need to be instantiated from templates, without the need to make it past the point where the rootfs is mounted. So let's relax the requirement that tcrypt can only be built as a module when CONFIG_EXPERT is enabled. Signed-off-by:
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Ard Biesheuvel authored
Commit c4741b23 ("crypto: run initcalls for generic implementations earlier") converted tcrypt.ko's module_init() to subsys_initcall(), but this was unintentional: tcrypt.ko currently cannot be built into the core kernel, and so the subsys_initcall() gets converted into module_init() under the hood. Given that tcrypt.ko does not implement a generic version of a crypto algorithm that has to be available early during boot, there is no point in running the tcrypt init code earlier than implied by module_init(). However, for crypto development purposes, we will lift the restriction that tcrypt.ko must be built as a module, and when builtin, it makes sense for tcrypt.ko (which does its work inside the module init function) to run as late as possible. So let's switch to late_initcall() instead. Signed-off-by:
Eric Biggers <ebiggers@google.com> Signed-off-by:
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Weili Qian authored
Move HiSilicon TRNG V2 driver into 'drivers/crypto/hisilicon/trng' with some updating on 'MAINTAINERS'. Signed-off-by:
Weili Qian <qianweili@huawei.com> Reviewed-by:
Zaibo Xu <xuzaibo@huawei.com> Signed-off-by:
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Weili Qian authored
This patch adds support for pseudo random number generator(PRNG) in Crypto subsystem. Signed-off-by:
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Weili Qian authored
Move existing char/hw_random/hisi-trng-v2.c to crypto/hisilicon/trng.c. Signed-off-by:
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Weili Qian authored
Driver of HiSilicon true random number generator(TRNG) is removed from 'drivers/char/hw_random'. Both 'Kunpeng 920' and 'Kunpeng 930' chips have TRNG, however, PRNG is only supported by 'Kunpeng 930'. So, this driver is moved to 'drivers/crypto/hisilicon/trng/' in the next to enable the two's TRNG better. Signed-off-by:
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Herbert Xu authored
This patch fixes a coulpe of sparse endianness warnings. Signed-off-by: -
Herbert Xu authored
This patch fixes a sparse endianness warning in sha256-spe. Signed-off-by: -
Herbert Xu authored
This patch fixes a number of endianness warnings in the mips/octeon code. Signed-off-by: -
kernel test robot authored
Condition !A || A && B is equivalent to !A || B. Generated by: scripts/coccinelle/misc/excluded_middle.cocci Fixes: b76f0ea0 ("coccinelle: misc: add excluded_middle.cocci script") CC: Denis Efremov <efremov@linux.com> Reported-by:
Julia Lawall <julia.lawall@inria.fr> Signed-off-by:
Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by:
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Thara Gopinath authored
Partial hash was being copied into the final result buffer without the entire message block processed. Depending on how the end user processes this result buffer, errors vary from result buffer corruption to result buffer poisoing. Fix this issue by ensuring that only the final hash value is copied into the result buffer. Reviewed-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
Thara Gopinath <thara.gopinath@linaro.org> Signed-off-by:
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Thara Gopinath authored
Add support Qualcomm Crypto Engine accelerated encryption and authentication algorithms on sdm845. Reviewed-by:
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Ard Biesheuvel authored
Wiring the SIMD code into the generic driver has the unfortunate side effect that the tcrypt testing code cannot distinguish them, and will therefore not use the latter to fuzz test the former, as it does for other algorithms. So let's refactor the code a bit so we can register two implementations: aegis128-generic and aegis128-simd. Signed-off-by:
Ondrej Mosnacek <omosnacek@gmail.com> Signed-off-by:
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Ard Biesheuvel authored
Instead of calculating the tag and returning it to the caller on decryption, use a SIMD compare and min across vector to perform the comparison. This is slightly more efficient, and removes the need on the caller's part to wipe the tag from memory if the decryption failed. While at it, switch to unsigned int when passing cryptlen and assoclen - we don't support input sizes where it matters anyway. Signed-off-by:
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Ard Biesheuvel authored
Avoid copying the tail block via a stack buffer if the total size exceeds a single AEGIS block. In this case, we can use overlapping loads and stores and NEON permutation instructions instead, which leads to a modest performance improvement on some cores (< 5%), and is slightly cleaner. Note that we still need to use a stack buffer if the entire input is smaller than 16 bytes, given that we cannot use 16 byte NEON loads and stores safely in this case. Signed-off-by:
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Ard Biesheuvel authored
The AEGIS spec mentions explicitly that the security guarantees hold only if the resulting plaintext and tag of a failed decryption are withheld. So ensure that we abide by this. While at it, drop the unused struct aead_request *req parameter from crypto_aegis128_process_crypt(). Reviewed-by:
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- 20 Nov, 2020 12 commits
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Corentin Labbe authored
This patch fixes the following smatch warnings: drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c:412 sun8i_ce_hash_run() warn: possible memory leak of 'result' Note: "buf" is leaked as well. Furthermore, in case of ENOMEM, crypto_finalize_hash_request() was not called which was an error. Fixes: 56f6d5ae ("crypto: sun8i-ce - support hash algorithms") Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Corentin Labbe <clabbe@baylibre.com> Signed-off-by:
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Colin Ian King authored
There are a couple of spelling mistakes in two crypto Kconfig files. Fix these. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Giovanni Cabiddu authored
Add support for QAT 4xxx devices. Signed-off-by:
Fiona Trahe <fiona.trahe@intel.com> Signed-off-by:
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Giovanni Cabiddu authored
Add an hook to initialize the vector routing table with the default values before MSIx is enabled. The new function set_msix_rttable() is called only if present in the struct adf_hw_device_data of the device. This is to allow for QAT devices that do not support that functionality. Signed-off-by:
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Giovanni Cabiddu authored
Introduce support for devices that require multiple firmware images. If a device requires more than a firmware image to operate, load the image to the appropriate Acceleration Engine (AE). Signed-off-by:
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Zhang Qilong authored
The pm_runtime_enable will increase power disable depth. Thus a pairing decrement is needed on the error handling path to keep it balanced according to context. Fixes: f7b2b5dd ("crypto: omap-aes - add error check for pm_runtime_get_sync") Signed-off-by:
Zhang Qilong <zhangqilong3@huawei.com> Signed-off-by:
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Yang Shen authored
The patch 'irqchip/gic-v3-its: Balance initial LPI affinity across CPUs' set the IRQ to an uncentain CPU. If an IRQ is bound to the CPU used by the thread which is sending request, the throughput will be just half. So allocate a 'work_queue' and set as 'WQ_UNBOUND' to do the back half work on some different CPUS. Signed-off-by:
Yang Shen <shenyang39@huawei.com> Reviewed-by:
Zhou Wang <wangzhou1@hisilicon.com> Signed-off-by:
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Herbert Xu authored
This patch moves the curve25519_selftest into curve25519.h so we don't get a warning from gcc complaining about a missing prototype. Reported-by:
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Eric Biggers authored
Currently <crypto/sha.h> contains declarations for both SHA-1 and SHA-2, and <crypto/sha3.h> contains declarations for SHA-3. This organization is inconsistent, but more importantly SHA-1 is no longer considered to be cryptographically secure. So to the extent possible, SHA-1 shouldn't be grouped together with any of the other SHA versions, and usage of it should be phased out. Therefore, split <crypto/sha.h> into two headers <crypto/sha1.h> and <crypto/sha2.h>, and make everyone explicitly specify whether they want the declarations for SHA-1, SHA-2, or both. This avoids making the SHA-1 declarations visible to files that don't want anything to do with SHA-1. It also prepares for potentially moving sha1.h into a new insecure/ or dangerous/ directory. Signed-off-by:
Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by:
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Nathan Chancellor authored
Clang warns: drivers/crypto/amcc/crypto4xx_core.c:921:60: warning: operator '?:' has lower precedence than '|'; '|' will be evaluated first [-Wbitwise-conditional-parentheses] (crypto_tfm_alg_type(req->tfm) == CRYPTO_ALG_TYPE_AEAD) ? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ drivers/crypto/amcc/crypto4xx_core.c:921:60: note: place parentheses around the '|' expression to silence this warning (crypto_tfm_alg_type(req->tfm) == CRYPTO_ALG_TYPE_AEAD) ? ^ ) drivers/crypto/amcc/crypto4xx_core.c:921:60: note: place parentheses around the '?:' expression to evaluate it first (crypto_tfm_alg_type(req->tfm) == CRYPTO_ALG_TYPE_AEAD) ? ^ ( 1 warning generated. It looks like this should have been a logical OR so that PD_CTL_HASH_FINAL gets added to the w bitmask if crypto_tfm_alg_type is either CRYPTO_ALG_TYPE_AHASH or CRYPTO_ALG_TYPE_AEAD. Change the operator so that everything works properly. Fixes: 4b5b7999 ("crypto: crypto4xx - fix stalls under heavy load") Link: https://github.com/ClangBuiltLinux/linux/issues/1198Signed-off-by:Nathan Chancellor <natechancellor@gmail.com> Reviewed-by:
Christian Lamparter <chunkeey@gmail.com> Signed-off-by:
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Horia Geantă authored
Wang Qing reports that IS_ERR_OR_NULL() should be matched with PTR_ERR_OR_ZERO(), not PTR_ERR(). As it turns out, the error path always returns an error code, i.e. NULL is never returned. Update the code accordingly - s/IS_ERR_OR_NULL/IS_ERR. Reported-by:
Wang Qing <wangqing@vivo.com> Signed-off-by:
Horia Geantă <horia.geanta@nxp.com> Signed-off-by:
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Ard Biesheuvel authored
Instead of copying the calculated authentication tag to memory and calling crypto_memneq() to verify it, use vector bytewise compare and min across vector instructions to decide whether the tag is valid. This is more efficient, and given that the tag is only transiently held in a NEON register, it is also safer, given that calculated tags for failed decryptions should be withheld. Signed-off-by:
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