caff3c8724
This patch fixes the following compilation error reported by aarch64-none-elf-gcc 11.0.0: bl32/tsp/tsp_main.c: In function 'tsp_smc_handler': bl32/tsp/tsp_main.c:393:9: error: 'tsp_get_magic' accessing 32 bytes in a region of size 16 [-Werror=stringop-overflow=] 393 | tsp_get_magic(service_args); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ bl32/tsp/tsp_main.c:393:9: note: referencing argument 1 of type 'uint64_t *' {aka 'long long unsigned int *'} In file included from bl32/tsp/tsp_main.c:19: bl32/tsp/tsp_private.h:64:6: note: in a call to function 'tsp_get_magic' 64 | void tsp_get_magic(uint64_t args[4]); | ^~~~~~~~~~~~~ by changing declaration of tsp_get_magic function from void tsp_get_magic(uint64_t args[4]); to uint128_t tsp_get_magic(void); which returns arguments directly in x0 and x1 registers. In bl32\tsp\tsp_main.c the current tsp_smc_handler() implementation calls tsp_get_magic(service_args); , where service_args array is declared as uint64_t service_args[2]; and tsp_get_magic() in bl32\tsp\aarch64\tsp_request.S copies only 2 registers in output buffer: /* Store returned arguments to the array */ stp x0, x1, [x4, #0] Change-Id: Ib34759fc5d7bb803e6c734540d91ea278270b330 Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com> |
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bl1 | ||
bl2 | ||
bl2u | ||
bl31 | ||
bl32 | ||
common | ||
docs | ||
drivers | ||
fdts | ||
include | ||
lib | ||
make_helpers | ||
plat | ||
services | ||
tools | ||
.checkpatch.conf | ||
.editorconfig | ||
.gitignore | ||
.gitreview | ||
Makefile | ||
dco.txt | ||
license.rst | ||
readme.rst |
readme.rst
Trusted Firmware-A
Trusted Firmware-A (TF-A) is a reference implementation of secure world software for Arm A-Profile architectures (Armv8-A and Armv7-A), including an Exception Level 3 (EL3) Secure Monitor. It provides a suitable starting point for productization of secure world boot and runtime firmware, in either the AArch32 or AArch64 execution states.
TF-A implements Arm interface standards, including:
- Power State Coordination Interface (PSCI)
- Trusted Board Boot Requirements CLIENT (TBBR-CLIENT)
- SMC Calling Convention
- System Control and Management Interface (SCMI)
- Software Delegated Exception Interface (SDEI)
The code is designed to be portable and reusable across hardware platforms and software models that are based on the Armv8-A and Armv7-A architectures.
In collaboration with interested parties, we will continue to enhance TF-A with reference implementations of Arm standards to benefit developers working with Armv7-A and Armv8-A TrustZone technology.
Users are encouraged to do their own security validation, including penetration testing, on any secure world code derived from TF-A.
More Info and Documentation
To find out more about Trusted Firmware-A, please view the full documentation that is available through trustedfirmware.org.
Copyright (c) 2013-2019, Arm Limited and Contributors. All rights reserved.