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* module: remove never implemented MODULE_SUPPORTED_DEVICELeon Romanovsky2021-03-171-1/+0
| | | | | | | | | | MODULE_SUPPORTED_DEVICE was added in pre-git era and never was implemented. We can safely remove it, because the kernel has grown to have many more reliable mechanisms to determine if device is supported or not. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'optee-simplify-i2c-access_for-v5.12' of ↵Arnd Bergmann2021-02-091-15/+16
|\ | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers Simplify i2c acess in OP-TEE driver * tag 'optee-simplify-i2c-access_for-v5.12' of git://git.linaro.org/people/jens.wiklander/linux-tee: optee: simplify i2c access Link: https://lore.kernel.org/soc/20210208125853.GA288348%40jade Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * optee: simplify i2c accessArnd Bergmann2021-02-081-15/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Storing a bogus i2c_client structure on the stack adds overhead and causes a compile-time warning: drivers/tee/optee/rpc.c:493:6: error: stack frame size of 1056 bytes in function 'optee_handle_rpc' [-Werror,-Wframe-larger-than=] void optee_handle_rpc(struct tee_context *ctx, struct optee_rpc_param *param, Change the implementation of handle_rpc_func_cmd_i2c_transfer() to open-code the i2c_transfer() call, which makes it easier to read and avoids the warning. Fixes: c05210ab9757 ("drivers: optee: allow op-tee to access devices on the i2c bus") Tested-by: Jorge Ramirez-Ortiz <jorge@foundries.io> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | Merge tag 'optee-fix-cond-resched-call-for-v5.12' of ↵Arnd Bergmann2021-02-031-1/+2
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/drivers Remove unnecessary need_resched() before cond_resched() * tag 'optee-fix-cond-resched-call-for-v5.12' of git://git.linaro.org:/people/jens.wiklander/linux-tee: tee: optee: remove need_resched() before cond_resched() tee: optee: replace might_sleep with cond_resched Link: https://lore.kernel.org/r/20210203120953.GB3624453@jade Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | tee: optee: remove need_resched() before cond_resched()Jens Wiklander2021-02-031-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Testing need_resched() before cond_resched() is not needed as an equivalent test is done internally in cond_resched(). So drop the need_resched() test. Fixes: dcb3b06d9c34 ("tee: optee: replace might_sleep with cond_resched") Reviewed-by: Rouven Czerwinski <r.czerwinski@pengutronix.de> Tested-by: Rouven Czerwinski <r.czerwinski@pengutronix.de> Tested-by: Sumit Garg <sumit.garg@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
| * | tee: optee: replace might_sleep with cond_reschedRouven Czerwinski2021-01-211-1/+3
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | might_sleep() is a debugging aid and triggers rescheduling only for certain kernel configurations. Replace with an explicit check and reschedule to work for all kernel configurations. Fixes the following trace: [ 572.945146] rcu: INFO: rcu_sched self-detected stall on CPU [ 572.949275] rcu: 0-....: (2099 ticks this GP) idle=572/1/0x40000002 softirq=7412/7412 fqs=974 [ 572.957964] (t=2100 jiffies g=10393 q=21) [ 572.962054] NMI backtrace for cpu 0 [ 572.965540] CPU: 0 PID: 165 Comm: xtest Not tainted 5.8.7 #1 [ 572.971188] Hardware name: STM32 (Device Tree Support) [ 572.976354] [<c011163c>] (unwind_backtrace) from [<c010b7f8>] (show_stack+0x10/0x14) [ 572.984080] [<c010b7f8>] (show_stack) from [<c0511e4c>] (dump_stack+0xc4/0xd8) [ 572.991300] [<c0511e4c>] (dump_stack) from [<c0519abc>] (nmi_cpu_backtrace+0x90/0xc4) [ 572.999130] [<c0519abc>] (nmi_cpu_backtrace) from [<c0519bdc>] (nmi_trigger_cpumask_backtrace+0xec/0x130) [ 573.008706] [<c0519bdc>] (nmi_trigger_cpumask_backtrace) from [<c01a5184>] (rcu_dump_cpu_stacks+0xe8/0x110) [ 573.018453] [<c01a5184>] (rcu_dump_cpu_stacks) from [<c01a4234>] (rcu_sched_clock_irq+0x7fc/0xa88) [ 573.027416] [<c01a4234>] (rcu_sched_clock_irq) from [<c01acdd0>] (update_process_times+0x30/0x8c) [ 573.036291] [<c01acdd0>] (update_process_times) from [<c01bfb90>] (tick_sched_timer+0x4c/0xa8) [ 573.044905] [<c01bfb90>] (tick_sched_timer) from [<c01adcc8>] (__hrtimer_run_queues+0x174/0x358) [ 573.053696] [<c01adcc8>] (__hrtimer_run_queues) from [<c01aea2c>] (hrtimer_interrupt+0x118/0x2bc) [ 573.062573] [<c01aea2c>] (hrtimer_interrupt) from [<c09ad664>] (arch_timer_handler_virt+0x28/0x30) [ 573.071536] [<c09ad664>] (arch_timer_handler_virt) from [<c0190f50>] (handle_percpu_devid_irq+0x8c/0x240) [ 573.081109] [<c0190f50>] (handle_percpu_devid_irq) from [<c018ab8c>] (generic_handle_irq+0x34/0x44) [ 573.090156] [<c018ab8c>] (generic_handle_irq) from [<c018b194>] (__handle_domain_irq+0x5c/0xb0) [ 573.098857] [<c018b194>] (__handle_domain_irq) from [<c052ac50>] (gic_handle_irq+0x4c/0x90) [ 573.107209] [<c052ac50>] (gic_handle_irq) from [<c0100b0c>] (__irq_svc+0x6c/0x90) [ 573.114682] Exception stack(0xd90dfcf8 to 0xd90dfd40) [ 573.119732] fce0: ffff0004 00000000 [ 573.127917] fd00: 00000000 00000000 00000000 00000000 00000000 00000000 d93493cc ffff0000 [ 573.136098] fd20: d2bc39c0 be926998 d90dfd58 d90dfd48 c09f3384 c01151f0 400d0013 ffffffff [ 573.144281] [<c0100b0c>] (__irq_svc) from [<c01151f0>] (__arm_smccc_smc+0x10/0x20) [ 573.151854] [<c01151f0>] (__arm_smccc_smc) from [<c09f3384>] (optee_smccc_smc+0x3c/0x44) [ 573.159948] [<c09f3384>] (optee_smccc_smc) from [<c09f4170>] (optee_do_call_with_arg+0xb8/0x154) [ 573.168735] [<c09f4170>] (optee_do_call_with_arg) from [<c09f4638>] (optee_invoke_func+0x110/0x190) [ 573.177786] [<c09f4638>] (optee_invoke_func) from [<c09f1ebc>] (tee_ioctl+0x10b8/0x11c0) [ 573.185879] [<c09f1ebc>] (tee_ioctl) from [<c029f62c>] (ksys_ioctl+0xe0/0xa4c) [ 573.193101] [<c029f62c>] (ksys_ioctl) from [<c0100060>] (ret_fast_syscall+0x0/0x54) [ 573.200750] Exception stack(0xd90dffa8 to 0xd90dfff0) [ 573.205803] ffa0: be926bf4 be926a78 00000003 8010a403 be926908 004e3cf8 [ 573.213987] ffc0: be926bf4 be926a78 00000000 00000036 be926908 be926918 be9269b0 bffdf0f8 [ 573.222162] ffe0: b6d76fb0 be9268fc b6d66621 b6c7e0d8 seen on STM32 DK2 with CONFIG_PREEMPT_NONE. Fixes: 9f02b8f61f29 ("tee: optee: add might_sleep for RPC requests") Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de> Tested-by: Sumit Garg <sumit.garg@linaro.org> [jw: added fixes tag + small adjustments in the code] Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | optee: sync OP-TEE headersJens Wiklander2021-02-024-189/+179
| | | | | | | | | | | | | | | | | | | | | | | | Pulls in updates in the internal headers from OP-TEE OS [1]. A few defines has been shortened, hence the changes in rpc.c. Defines not used by the driver in tee_rpc_cmd.h has been filtered out. Note that this does not change the ABI. Link: [1] https://github.com/OP-TEE/optee_os Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | tee: optee: fix 'physical' typosBjorn Helgaas2021-02-021-1/+1
| | | | | | | | | | | | | | Fix misspellings of "physical". Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | drivers: optee: use flexible-array member instead of zero-length arrayTian Tao2021-02-021-1/+1
|/ | | | | | | | | | | Use flexible-array member introduced in C99 instead of zero-length array. Most of zero-length array was already taken care in previous patch [1]. Now modified few more cases which were not handled earlier. [1]. https://patchwork.kernel.org/patch/11394197/ Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* Merge tag 'arm-soc-drivers-5.11' of ↵Linus Torvalds2020-12-161-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC driver updates from Arnd Bergmann: "There are a couple of subsystems maintained by other people that merge their drivers through the SoC tree, those changes include: - The SCMI firmware framework gains support for sensor notifications and for controlling voltage domains. - A large update for the Tegra memory controller driver, integrating it better with the interconnect framework - The memory controller subsystem gains support for Mediatek MT8192 - The reset controller framework gains support for sharing pulsed resets For Soc specific drivers in drivers/soc, the main changes are - The Allwinner/sunxi MBUS gets a rework for the way it handles dma_map_ops and offsets between physical and dma address spaces. - An errata fix plus some cleanups for Freescale Layerscape SoCs - A cleanup for renesas drivers regarding MMIO accesses. - New SoC specific drivers for Mediatek MT8192 and MT8183 power domains - New SoC specific drivers for Aspeed AST2600 LPC bus control and SoC identification. - Core Power Domain support for Qualcomm MSM8916, MSM8939, SDM660 and SDX55. - A rework of the TI AM33xx 'genpd' power domain support to use information from DT instead of platform data - Support for TI AM64x SoCs - Allow building some Amlogic drivers as modules instead of built-in Finally, there are numerous cleanups and smaller bug fixes for Mediatek, Tegra, Samsung, Qualcomm, TI OMAP, Amlogic, Rockchips, Renesas, and Xilinx SoCs" * tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (222 commits) soc: mediatek: mmsys: Specify HAS_IOMEM dependency for MTK_MMSYS firmware: xilinx: Properly align function parameter firmware: xilinx: Add a blank line after function declaration firmware: xilinx: Remove additional newline firmware: xilinx: Fix kernel-doc warnings firmware: xlnx-zynqmp: fix compilation warning soc: xilinx: vcu: add missing register NUM_CORE soc: xilinx: vcu: use vcu-settings syscon registers dt-bindings: soc: xlnx: extract xlnx, vcu-settings to separate binding soc: xilinx: vcu: drop useless success message clk: samsung: mark PM functions as __maybe_unused soc: samsung: exynos-chipid: initialize later - with arch_initcall soc: samsung: exynos-chipid: order list of SoCs by name memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe() memory: ti-emif-sram: only build for ARMv7 memory: tegra30: Support interconnect framework memory: tegra20: Support hardware versioning and clean up OPP table initialization dt-bindings: memory: tegra20-emc: Document opp-supported-hw property soc: rockchip: io-domain: Fix error return code in rockchip_iodomain_probe() reset-controller: ti: force the write operation when assert or deassert ...
| * Backmerge tag 'v5.10-rc2' into arm/driversArnd Bergmann2020-11-271-1/+2
| |\ | | | | | | | | | | | | | | | | | | The SCMI pull request for the arm/drivers branch requires v5.10-rc2 because of dependencies with other git trees, so merge that in here. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * \ Merge tag 'optee-use-uuid-api-for-v5.10' of ↵Arnd Bergmann2020-10-261-1/+1
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/drivers Use UUID API to export the UUID Uses export_uuid() to export and uuid_t to an u8 array instead of depending on the internals of uuid_t. * tag 'optee-use-uuid-api-for-v5.10' of git://git.linaro.org:/people/jens.wiklander/linux-tee: tee: optee: Use UUID API for exporting the UUID Link: https://lore.kernel.org/r/20201013063612.GA3325842@jade Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | tee: optee: Use UUID API for exporting the UUIDAndy Shevchenko2020-10-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is export_uuid() function which exports uuid_t to the u8 array. Use it instead of open coding variant. This allows to hide the uuid_t internals. Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | | | Merge branch 'linus' of ↵Linus Torvalds2020-12-141-1/+1
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 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.hEric Biggers2020-11-201-1/+1
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Eric Biggers <ebiggers@google.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | | | Merge tag 'arm-soc-fixes-v5.10-3' of ↵Linus Torvalds2020-11-271-1/+2
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Arnd Bergmann: "Another set of patches for devicetree files and Arm SoC specific drivers: - A fix for OP-TEE shared memory on non-SMP systems - multiple code fixes for the OMAP platform, including one regression for the CPSW network driver and a few runtime warning fixes - Some DT patches for the Rockchip RK3399 platform, in particular fixing the MMC device ordering that recently became nondeterministic with async probe. - Multiple DT fixes for the Tegra platform, including a regression fix for suspend/resume on TX2 - A regression fix for a user-triggered fault in the NXP dpio driver - A regression fix for a bug caused by an earlier bug fix in the xilinx firmware driver - Two more DTC warning fixes - Sylvain Lemieux steps down as maintainer for the NXP LPC32xx platform" * tag 'arm-soc-fixes-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits) arm64: tegra: Fix Tegra234 VDK node names arm64: tegra: Wrong AON HSP reg property size arm64: tegra: Fix USB_VBUS_EN0 regulator on Jetson TX1 arm64: tegra: Correct the UART for Jetson Xavier NX arm64: tegra: Disable the ACONNECT for Jetson TX2 optee: add writeback to valid memory type firmware: xilinx: Use hash-table for api feature check firmware: xilinx: Fix SD DLL node reset issue soc: fsl: dpio: Get the cpumask through cpumask_of(cpu) ARM: dts: dra76x: m_can: fix order of clocks bus: ti-sysc: suppress err msg for timers used as clockevent/source MAINTAINERS: Remove myself as LPC32xx maintainers arm64: dts: qcom: clear the warnings caused by empty dma-ranges arm64: dts: broadcom: clear the warnings caused by empty dma-ranges ARM: dts: am437x-l4: fix compatible for cpsw switch dt node arm64: dts: rockchip: Reorder LED triggers from mmc devices on rk3399-roc-pc. arm64: dts: rockchip: Assign a fixed index to mmc devices on rk3399 boards. arm64: dts: rockchip: Remove system-power-controller from pmic on Odroid Go Advance arm64: dts: rockchip: fix NanoPi R2S GMAC clock name ARM: OMAP2+: Manage MPU state properly for omap_enter_idle_coupled() ...
| * | | | optee: add writeback to valid memory typeRui Miguel Silva2020-11-251-1/+2
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only in smp systems the cache policy is setup as write alloc, in single cpu systems the cache policy is set as writeback and it is normal memory, so, it should pass the is_normal_memory check in the share memory registration. Add the right condition to make it work in no smp systems. Fixes: cdbcf83d29c1 ("tee: optee: check type of registered shared memory") Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | | | Merge tag 'amdtee-fixes-for-5.10' of ↵Arnd Bergmann2020-11-132-11/+23
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/fixes AMD-TEE driver bug fixes AMD-TEE driver keeps track of shared memory buffers and their corresponding buffer id's in a global linked list. These buffers are used to share data between x86 and AMD Secure Processor. This pull request fixes issues related to maintaining mapped buffers in a shared linked list. * tag 'amdtee-fixes-for-5.10' of git://git.linaro.org:/people/jens.wiklander/linux-tee: tee: amdtee: synchronize access to shm list tee: amdtee: fix memory leak due to reset of global shm list Link: https://lore.kernel.org/r/20201109080809.GA3862873@jade Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | tee: amdtee: synchronize access to shm listRijo Thomas2020-11-092-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Synchronize access to shm or shared memory buffer list to prevent race conditions due to concurrent updates to shared shm list by multiple threads. Fixes: 757cc3e9ff1d ("tee: add AMD-TEE driver") Reviewed-by: Devaraj Rangasamy <Devaraj.Rangasamy@amd.com> Signed-off-by: Rijo Thomas <Rijo-john.Thomas@amd.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
| * | | tee: amdtee: fix memory leak due to reset of global shm listRijo Thomas2020-11-092-11/+14
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver maintains a list of shared memory buffers along with their mapped buffer id's in a global linked list. These buffers need to be unmapped after use by the user-space client. The global shared memory list is initialized to zero entries in the function amdtee_open(). This clearing of list entries can be a source for memory leak on secure side if the global linked list previously held some mapped buffer entries allocated from another TEE context. Fix potential memory leak issue by moving global shared memory list to AMD-TEE driver context data structure. Fixes: 757cc3e9ff1d ("tee: add AMD-TEE driver") Reviewed-by: Devaraj Rangasamy <Devaraj.Rangasamy@amd.com> Signed-off-by: Rijo Thomas <Rijo-john.Thomas@amd.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | | Merge tag 'tee-fix-for-v5.10' of ↵Arnd Bergmann2020-10-261-1/+2
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/fixes 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 <arnd@arndb.de>
| * | tee: client UUID: Skip REE kernel login method as wellSumit Garg2020-10-131-1/+2
| |/ | | | | | | | | | | | | | | | | | | Since the addition of session's client UUID generation via commit [1], login via REE kernel method was disallowed. So fix that via passing nill UUID in case of TEE_IOCTL_LOGIN_REE_KERNEL method as well. Fixes: e33bcbab16d1 ("tee: add support for session's client UUID generation") [1] Signed-off-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | Merge tag 'tee-dev-cleanup-for-v5.10' of ↵Olof Johansson2020-09-261-33/+7
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/drivers Simplify tee_device_register() and friends Uses cdev_device_add() instead of the cdev_add() device_add() combination. Initializes dev->groups instead of direct calls to sysfs_create_group() and friends. * tag 'tee-dev-cleanup-for-v5.10' of git://git.linaro.org:/people/jens.wiklander/linux-tee: tee: avoid explicit sysfs_create/delete_group by initialising dev->groups tee: replace cdev_add + device_add with cdev_device_add Link: https://lore.kernel.org/r/20200918144130.GB1219771@jade Signed-off-by: Olof Johansson <olof@lixom.net>
| * | tee: avoid explicit sysfs_create/delete_group by initialising dev->groupsSudeep Holla2020-09-181-17/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | If the dev->groups is initialised, the sysfs group is created as part of device_add call. There is no need to call sysfs_create/delete_group explicitly. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
| * | tee: replace cdev_add + device_add with cdev_device_addSudeep Holla2020-09-181-17/+4
| |/ | | | | | | | | | | | | | | | | | | | | | | Commit 233ed09d7fda ("chardev: add helper function to register char devs with a struct device") added a helper function 'cdev_device_add'. Make use of cdev_device_add in tee_device_register to replace cdev_add and device_add. Since cdev_device_add takes care of setting the kobj->parent, drop explicit initialisation in tee_device_alloc. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | Merge tag 'optee-i2c-fix-for-v5.10' of ↵Olof Johansson2020-09-131-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/drivers Make sure I2C functions used in OP-TEE are reachable with IS_REACHABLE() * tag 'optee-i2c-fix-for-v5.10' of git://git.linaro.org:/people/jens.wiklander/linux-tee: drivers: optee: fix i2c build issue Link: https://lore.kernel.org/r/20200901101806.GA3286324@jade Signed-off-by: Olof Johansson <olof@lixom.net>
| * | drivers: optee: fix i2c build issueJorge Ramirez-Ortiz2020-09-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the optee driver is compiled into the kernel while the i2c core is configured as a module, the i2c symbols are not available. This commit addresses the situation by disabling the i2c support for this use case while allowing it in all other scenarios: i2c=y, optee=y i2c=m, optee=m i2c=y, optee=m i2c=m, optee=y (not supported) Fixes: c05210ab9757 ("drivers: optee: allow op-tee to access devices on the i2c bus") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | | Merge tag 'tee-pin-user-pages-for-5.10' of ↵Olof Johansson2020-08-271-13/+19
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers Converts tee subsystem to use pin_user_pages() instead of get_user_pages() * tag 'tee-pin-user-pages-for-5.10' of git://git.linaro.org/people/jens.wiklander/linux-tee: tee: convert get_user_pages() --> pin_user_pages() Link: https://lore.kernel.org/r/20200825090715.GA2370775@jade Signed-off-by: Olof Johansson <olof@lixom.net>
| * | | tee: convert get_user_pages() --> pin_user_pages()John Hubbard2020-08-251-13/+19
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code was using get_user_pages*(), in a "Case 2" scenario (DMA/RDMA), using the categorization from [1]. That means that it's time to convert the get_user_pages*() + put_page() calls to pin_user_pages*() + unpin_user_pages() calls. Factor out a new, small release_registered_pages() function, in order to consolidate the logic for discerning between TEE_SHM_USER_MAPPED and TEE_SHM_KERNEL_MAPPED pages. This also absorbs the kfree() call that is also required there. There is some helpful background in [2]: basically, this is a small part of fixing a long-standing disconnect between pinning pages, and file systems' use of those pages. [1] Documentation/core-api/pin_user_pages.rst [2] "Explicit pinning of user-space pages": https://lwn.net/Articles/807108/ Cc: Jens Wiklander <jens.wiklander@linaro.org> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: tee-dev@lists.linaro.org Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | | Merge tag 'tee-memref-null-for-v5.10' of ↵Olof Johansson2020-08-213-18/+41
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers Handle NULL pointer indication from tee client Adds support to indicate NULL pointers instead of a valid buffer when querying the needed size of a buffer. * tag 'tee-memref-null-for-v5.10' of git://git.linaro.org/people/jens.wiklander/linux-tee: driver: tee: Handle NULL pointer indication from client Link: https://lore.kernel.org/r/20200821102535.GA1872111@jade Signed-off-by: Olof Johansson <olof@lixom.net>
| * | driver: tee: Handle NULL pointer indication from clientCedric Neveux2020-08-213-18/+41
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | TEE Client introduce a new capability "TEE_GEN_CAP_MEMREF_NULL" to handle the support of the shared memory buffer with a NULL pointer. This capability depends on TEE Capabilities and driver support. Driver and TEE exchange capabilities at driver initialization. Signed-off-by: Michael Whitfield <michael.whitfield@nxp.com> Signed-off-by: Cedric Neveux <cedric.neveux@nxp.com> Reviewed-by: Joakim Bech <joakim.bech@linaro.org> Tested-by: Joakim Bech <joakim.bech@linaro.org> (QEMU) Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* / drivers: optee: allow op-tee to access devices on the i2c busJorge Ramirez-Ortiz2020-08-213-0/+117
|/ | | | | | | | | | | Some secure elements like NXP's SE050 sit on I2C buses. For OP-TEE to control this type of cryptographic devices it needs coordinated access to the bus, so collisions and RUNTIME_PM dont get in the way. This trampoline driver allow OP-TEE to access them. Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* Merge tag 'optee-bus-for-v5.9' of ↵Arnd Bergmann2020-07-133-25/+50
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers Enable multi-stage OP-TEE bus enumeration Probes drivers on the OP-TEE bus in two steps. First for drivers which do not depend on tee-supplicant. After tee-supplicant has been started probe the devices which do depend on tee-supplicant. Also introduces driver which uses an OP-TEE based fTPM Trusted Application depends on tee-supplicant NV RAM implementation based on RPMB secure storage. * tag 'optee-bus-for-v5.9' of git://git.linaro.org/people/jens.wiklander/linux-tee: tpm_ftpm_tee: register driver on TEE bus optee: enable support for multi-stage bus enumeration optee: use uuid for sysfs driver entry Link: https://lore.kernel.org/r/20200710085230.GA1312913@jade Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * optee: enable support for multi-stage bus enumerationMaxim Uvarov2020-07-103-22/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some drivers (like ftpm) can operate only after tee-supplicant runs because of tee-supplicant provides things like storage services (rpmb, shm).  This patch splits probe of non tee-supplicant dependable drivers to the early stage, and after tee-supplicant run probe other drivers. Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org> Suggested-by: Sumit Garg <sumit.garg@linaro.org> Suggested-by: Arnd Bergmann <arnd@linaro.org> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Acked-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
| * optee: use uuid for sysfs driver entryMaxim Uvarov2020-07-101-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the evolving use-cases for TEE bus, now it's required to support multi-stage enumeration process. But using a simple index doesn't suffice this requirement and instead leads to duplicate sysfs entries. So instead switch to use more informative device UUID for sysfs entry like: /sys/bus/tee/devices/optee-ta-<uuid> Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | mmap locking API: use coccinelle to convert mmap_sem rwsem call sitesMichel Lespinasse2020-06-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change converts the existing mmap_sem rwsem calls to use the new mmap locking API instead. The change is generated using coccinelle with the following rule: // spatch --sp-file mmap_lock_api.cocci --in-place --include-headers --dir . @@ expression mm; @@ ( -init_rwsem +mmap_init_lock | -down_write +mmap_write_lock | -down_write_killable +mmap_write_lock_killable | -down_write_trylock +mmap_write_trylock | -up_write +mmap_write_unlock | -downgrade_write +mmap_write_downgrade | -down_read +mmap_read_lock | -down_read_killable +mmap_read_lock_killable | -down_read_trylock +mmap_read_trylock | -up_read +mmap_read_unlock ) -(&mm->mmap_sem) +(mm) Signed-off-by: Michel Lespinasse <walken@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Liam Howlett <Liam.Howlett@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ying Han <yinghan@google.com> Link: http://lkml.kernel.org/r/20200520052908.204642-5-walken@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | tee: fix crypto selectArnd Bergmann2020-05-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When selecting a crypto cipher, we also need to select the subsystem itself: WARNING: unmet direct dependencies detected for CRYPTO_SHA1 Depends on [m]: CRYPTO [=m] Selected by [y]: - TEE [=y] && (HAVE_ARM_SMCCC [=n] || COMPILE_TEST [=y] || CPU_SUP_AMD [=y]) Selected by [m]: - CRYPTO_DEV_QAT [=m] && CRYPTO [=m] && CRYPTO_HW [=y] - CRYPTO_DEV_MEDIATEK [=m] && CRYPTO [=m] && CRYPTO_HW [=y] && (ARM && ARCH_MEDIATEK || COMPILE_TEST [=y]) - CRYPTO_DEV_SAFEXCEL [=m] && CRYPTO [=m] && CRYPTO_HW [=y] && (OF [=y] || PCI [=y] || COMPILE_TEST [=y]) && HAS_IOMEM [=y] - CRYPTO_DEV_CCREE [=m] && CRYPTO [=m] && CRYPTO_HW [=y] && OF [=y] && HAS_DMA [=y] - CRYPTO_DEV_SP_CCP [=y] && CRYPTO [=m] && CRYPTO_HW [=y] && CRYPTO_DEV_CCP [=y] && CRYPTO_DEV_CCP_DD [=m] && DMADEVICES [=y] Link: https://lore.kernel.org/r/20200527133924.724819-1-arnd@arndb.de Fixes: e33bcbab16d1 ("tee: add support for session's client UUID generation") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Vesa Jääskeläinen <vesa.jaaskelainen@vaisala.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | Merge tag 'tee-login-for-5.8' of ↵Arnd Bergmann2020-05-253-1/+158
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers Adds utility function in TEE subsystem for client UUID generation. This function is also used in the optee driver. * tag 'tee-login-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee: tee: optee: Add support for session login client UUID generation tee: add support for session's client UUID generation Link: https://lore.kernel.org/r/20200512131243.GA10028@jade Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | tee: optee: Add support for session login client UUID generationVesa Jääskeläinen2020-05-111-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | Adds support for client UUID generation for OP-TEE. For group based session logins membership is verified. Signed-off-by: Vesa Jääskeläinen <vesa.jaaskelainen@vaisala.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
| * | tee: add support for session's client UUID generationVesa Jääskeläinen2020-05-112-0/+153
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TEE Client API defines that from user space only information needed for specified login operations is group identifier for group based logins. REE kernel is expected to formulate trustworthy client UUID and pass that to TEE environment. REE kernel is required to verify that provided group identifier for group based logins matches calling processes group memberships. TEE specification only defines that the information passed from REE environment to TEE environment is encoded into on UUID. In order to guarantee trustworthiness of client UUID user space is not allowed to freely pass client UUID. UUIDv5 form is used encode variable amount of information needed for different login types. Signed-off-by: Vesa Jääskeläinen <vesa.jaaskelainen@vaisala.com> [jw: remove unused variable application_id] Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | Merge tag 'tee-smatch-for-5.8' of ↵Arnd Bergmann2020-05-251-2/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers tee: remove unnecessary NULL check in tee_shm_alloc() * tag 'tee-smatch-for-5.8' of git://git.linaro.org/people/jens.wiklander/linux-tee: tee: remove unnecessary NULL check in tee_shm_alloc() Link: https://lore.kernel.org/r/20200504181333.GA11018@jade Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | tee: remove unnecessary NULL check in tee_shm_alloc()Dan Carpenter2020-04-201-2/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | Smatch complains that "ctx" isn't checked consistently: drivers/tee/tee_shm.c:164 tee_shm_alloc() warn: variable dereferenced before check 'ctx' (see line 95) I audited the callers and "ctx" can't be NULL so the check can be removed. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | tee: add private login method for kernel clientsSumit Garg2020-04-201-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | There are use-cases where user-space shouldn't be allowed to communicate directly with a TEE device which is dedicated to provide a specific service for a kernel client. So add a private login method for kernel clients and disallow user-space to open-session using GP implementation defined login method range: (0x80000000 - 0xBFFFFFFF). Reviewed-by: Jerome Forissier <jerome@forissier.org> Signed-off-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* | tee: enable support to register kernel memorySumit Garg2020-04-201-3/+25
|/ | | | | | | | Enable support to register kernel memory reference with TEE. This change will allow TEE bus drivers to register memory references. Signed-off-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
* Merge tag 'arm-drivers-5.7' of ↵Linus Torvalds2020-04-033-63/+26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM driver updates from Arnd Bergmann: "These are the usual updates for SoC specific device drivers and related subsystems that don't have their own top-level maintainers: - ARM SCMI/SCPI updates to allow pluggable transport layers - TEE subsystem cleanups - A new driver for the Amlogic secure power domain controller - Various driver updates for the NXP Layerscape DPAA2, NXP i.MX SCU and TI OMAP2+ sysc drivers. - Qualcomm SoC driver updates, including a new library module for "protection domain" notifications - Lots of smaller bugfixes and cleanups in other drivers" * tag 'arm-drivers-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (70 commits) soc: fsl: qe: fix sparse warnings for ucc_slow.c soc: fsl: qe: ucc_slow: remove 0 assignment for kzalloc'ed structure soc: fsl: qe: fix sparse warnings for ucc_fast.c soc: fsl: qe: fix sparse warnings for qe_ic.c soc: fsl: qe: fix sparse warnings for ucc.c soc: fsl: qe: fix sparse warning for qe_common.c soc: fsl: qe: fix sparse warnings for qe.c soc: qcom: Fix QCOM_APR dependencies soc: qcom: pdr: Avoid uninitialized use of found in pdr_indication_cb soc: imx: drop COMPILE_TEST for IMX_SCU_SOC firmware: imx: add COMPILE_TEST for IMX_SCU driver soc: imx: gpc: fix power up sequencing soc: imx: increase build coverage for imx8m soc driver soc: qcom: apr: Add avs/audio tracking functionality dt-bindings: soc: qcom: apr: Add protection domain bindings soc: qcom: Introduce Protection Domain Restart helpers devicetree: bindings: firmware: add ipq806x to qcom_scm memory: tegra: Correct debugfs clk rate-range on Tegra124 memory: tegra: Correct debugfs clk rate-range on Tegra30 memory: tegra: Correct debugfs clk rate-range on Tegra20 ...
| * Merge tag 'tee-cleanup-for-5.7' of ↵Arnd Bergmann2020-03-273-63/+26
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers Cleanup shared memory handing in TEE subsystem The highlights are: - Removing redundant or unused fields in struct tee_shm - Only assign userspace shm IDs for shared memory objects originating from user space * tag 'tee-cleanup-for-5.7' of https://git.linaro.org/people/jens.wiklander/linux-tee: tee: tee_shm_op_mmap(): use TEE_SHM_USER_MAPPED tee: remove redundant teedev in struct tee_shm tee: don't assign shm id for private shms tee: remove unused tee_shm_priv_alloc() tee: remove linked list of struct tee_shm Link: https://lore.kernel.org/r/20200228140925.GA12393@jade Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * tee: tee_shm_op_mmap(): use TEE_SHM_USER_MAPPEDJens Wiklander2020-02-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | tee_shm_op_mmap() uses the TEE_SHM_USER_MAPPED flag instead of the TEE_SHM_REGISTER flag to tell if a shared memory object is originating from registered user space memory. Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
| | * tee: remove redundant teedev in struct tee_shmJens Wiklander2020-02-281-5/+2
| | | | | | | | | | | | | | | | | | | | | The ctx element in struct tee_shm is always valid. So remove the now redundant teedev element. Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
| | * tee: don't assign shm id for private shmsJens Wiklander2020-02-282-14/+20
| | | | | | | | | | | | | | | | | | | | | | | | Private shared memory object must not be referenced from user space. To guarantee that, don't assign an id to shared memory objects which are driver private. Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
| | * tee: remove unused tee_shm_priv_alloc()Jens Wiklander2020-02-281-31/+2
| | | | | | | | | | | | | | | | | | | | | tee_shm_priv_alloc() isn't useful in the current state and it's also not not used so remove it. Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 12:50:42 +0000