kernel/linux.git/drivers/tee/tee_core.c, branch linux-6.0.y

tee: tee_get_drvdata(): fix description of return value

2022-07-08T08:51:24+00:00

This patch fixes the description of tee_get_drvdata()'s return value. It actually returns the driver_data pointer supplied to tee_device_alloc() since the TEE subsystem was added to the kernel. Fixes: 967c9cca2cc5 ("tee: generic TEE subsystem") Cc: Jens Wiklander Signed-off-by: Marc Kleine-Budde Signed-off-by: Jens Wiklander

tee: remove flags TEE_IOCTL_SHM_MAPPED and TEE_IOCTL_SHM_DMA_BUF

2022-04-26T08:17:03+00:00

These look to be leftover from an early edition of this driver. Userspace does not need this information. Checking all users of this that I have access to I have verified no one is using them. They leak internal use flags out to userspace. Even more they are not correct anymore after a45ea4efa358. Lets drop these flags before someone does try to use them for something and they become ABI. Signed-off-by: Andrew Davis Acked-by: Sumit Garg Signed-off-by: Jens Wiklander

tee: add tee_shm_register_{user,kernel}_buf()

2022-02-16T06:49:41+00:00

Adds the two new functions tee_shm_register_user_buf() and tee_shm_register_kernel_buf() which should be used instead of the old tee_shm_register(). This avoids having the caller supplying the flags parameter which exposes a bit more than desired of the internals of the TEE subsystem. Reviewed-by: Sumit Garg Signed-off-by: Jens Wiklander

tee: add tee_shm_alloc_user_buf()

2022-02-16T06:49:41+00:00

Adds a new function tee_shm_alloc_user_buf() for user mode allocations, replacing passing the flags TEE_SHM_MAPPED | TEE_SHM_DMA_BUF to tee_shm_alloc(). Reviewed-by: Sumit Garg Signed-off-by: Jens Wiklander

tee: export teedev_open() and teedev_close_context()

2021-11-17T13:08:55+00:00

Exports the two functions teedev_open() and teedev_close_context() in order to make it easier to create a driver internal struct tee_context. Reviewed-by: Sumit Garg Signed-off-by: Jens Wiklander

tee: fix put order in teedev_close_context()

2021-11-17T13:08:54+00:00

Prior to this patch was teedev_close_context() calling tee_device_put() before teedev_ctx_put() leading to teedev_ctx_release() accessing ctx->teedev just after the reference counter was decreased on the teedev. Fix this by calling teedev_ctx_put() before tee_device_put(). Fixes: 217e0250cccb ("tee: use reference counting for tee_context") Reviewed-by: Sumit Garg Signed-off-by: Jens Wiklander

tee: Fix fall-through warnings for Clang

2021-05-17T23:40:54+00:00

In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning by explicitly adding a break statement instead of letting the code fall through to the next case. Link: https://github.com/KSPP/linux/issues/115 Acked-by: Jens Wiklander Signed-off-by: Gustavo A. R. Silva

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2020-12-14T20:18:19+00:00

Pull crypto updates from Herbert Xu: "API: - Add speed testing on 1420-byte blocks for networking Algorithms: - Improve performance of chacha on ARM for network packets - Improve performance of aegis128 on ARM for network packets Drivers: - Add support for Keem Bay OCS AES/SM4 - Add support for QAT 4xxx devices - Enable crypto-engine retry mechanism in caam - Enable support for crypto engine on sdm845 in qce - Add HiSilicon PRNG driver support" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (161 commits) crypto: qat - add capability detection logic in qat_4xxx crypto: qat - add AES-XTS support for QAT GEN4 devices crypto: qat - add AES-CTR support for QAT GEN4 devices crypto: atmel-i2c - select CONFIG_BITREVERSE crypto: hisilicon/trng - replace atomic_add_return() crypto: keembay - Add support for Keem Bay OCS AES/SM4 dt-bindings: Add Keem Bay OCS AES bindings crypto: aegis128 - avoid spurious references crypto_aegis128_update_simd crypto: seed - remove trailing semicolon in macro definition crypto: x86/poly1305 - Use TEST %reg,%reg instead of CMP $0,%reg crypto: x86/sha512 - Use TEST %reg,%reg instead of CMP $0,%reg crypto: aesni - Use TEST %reg,%reg instead of CMP $0,%reg crypto: cpt - Fix sparse warnings in cptpf hwrng: ks-sa - Add dependency on IOMEM and OF crypto: lib/blake2s - Move selftest prototype into header file crypto: arm/aes-ce - work around Cortex-A57/A72 silion errata crypto: ecdh - avoid unaligned accesses in ecdh_set_secret() crypto: ccree - rework cache parameters handling crypto: cavium - Use dma_set_mask_and_coherent to simplify code crypto: marvell/octeontx - Use dma_set_mask_and_coherent to simplify code ...

crypto: sha - split sha.h into sha1.h and sha2.h

2020-11-20T03:45:33+00:00

Currently contains declarations for both SHA-1 and SHA-2, and 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 into two headers and , 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: Eric Biggers Acked-by: Ard Biesheuvel Acked-by: Jason A. Donenfeld Signed-off-by: Herbert Xu

Merge tag 'tee-fix-for-v5.10' of git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/fixes

2020-10-26T09:55:56+00:00

Reenable kernel login method for kernel TEE client API The kernel TEE login method was accidentally disabled previously when enabling a few other login methods, so fix that here. * tag 'tee-fix-for-v5.10' of git://git.linaro.org:/people/jens.wiklander/linux-tee: tee: client UUID: Skip REE kernel login method as well Link: https://lore.kernel.org/r/20201013070918.GA3328976@jade Signed-off-by: Arnd Bergmann