zephyrproject-rtos/trusted-firmware-a
Jan 2025 – Mar 2025
3 Months active
Languages Used
MakefileC
Technical Skills
Embedded SystemsPlatform ConfigurationContext SwitchingInterrupt HandlingSystem ProgrammingARM Architecture
Rakshit Goyal
PROFILE
Rakshit Goyal
Worked on trusted-firmware-a within the zephyrproject-rtos organization, focusing on stability and correctness in ARM-based embedded systems. Over three months, addressed critical bugs affecting SVE vector length defaults, SIMD context preservation during SPMC transitions, and FP register handling when SVE is excluded, ensuring architectural alignment and reducing runtime risk. Solutions involved precise updates to platform configuration and secure interrupt handling, with careful attention to context switching and system programming constraints. Leveraged expertise in C and Makefile to deliver targeted patches that improved reliability across multiple Neoverse-RD variants, enhancing the robustness of firmware deployments in complex, security-sensitive environments.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
3Total
Bugs
3
Commits
3
Features
0
Lines of code
30
Activity Months3
Your Network
679 peopleSame Organization
@arm.com538
Work History
March 2025
1 Commits
Mar 1, 2025March 2025 monthly summary for zephyrproject-rtos/trusted-firmware-a: Stability and correctness improvements in rdv3 context saving, specifically addressing FP register exclusion when SVE is excluded. The change aligns FP and SVE state handling with architectural constraints (SPD == spmd and SPMD_SPM_AT_SEL2 == 1), reducing risk of FP state corruption during context switches and improving reliability across edge-case configurations.
1 Commits
Mar 1, 2025March 2025 monthly summary for zephyrproject-rtos/trusted-firmware-a: Stability and correctness improvements in rdv3 context saving, specifically addressing FP register exclusion when SVE is excluded. The change aligns FP and SVE state handling with architectural constraints (SPD == spmd and SPMD_SPM_AT_SEL2 == 1), reducing risk of FP state corruption during context switches and improving reliability across edge-case configurations.
March 2025
February 2025
1 Commits
Feb 1, 2025February 2025 monthly summary for zephyrproject-rtos/trusted-firmware-a: Focused bug fix addressing SIMD state handling in SPMC transitions under the NWD path. The change preserves the NWD SIMD context during SPMC enter/exit by correctly saving and restoring SIMD state in the secure interrupt path, only performing necessary context operations. This eliminates context loss when SPMD_SPM_AT_SEL2 is enabled and avoids redundant context saves after returning from SPMC and redundant restores before entering SPMC. The patch reduces risk of SIMD-related failures in time-critical secure routines and contributes to system reliability.
February 2025
1 Commits
Feb 1, 2025February 2025 monthly summary for zephyrproject-rtos/trusted-firmware-a: Focused bug fix addressing SIMD state handling in SPMC transitions under the NWD path. The change preserves the NWD SIMD context during SPMC enter/exit by correctly saving and restoring SIMD state in the secure interrupt path, only performing necessary context operations. This eliminates context loss when SPMD_SPM_AT_SEL2 is enabled and avoids redundant context saves after returning from SPMC and redundant restores before entering SPMC. The patch reduces risk of SIMD-related failures in time-critical secure routines and contributes to system reliability.
January 2025
1 Commits
Jan 1, 2025January 2025 monthly summary for zephyrproject-rtos/trusted-firmware-a: Delivered a critical correctness fix for SVE vector length defaults on Neoverse-RD platforms and reinforced build-time configuration accuracy across multiple RD variants (RD-N2, RD-V1, RD-V1-MC, RD-V3). The change ensures reliable SVE behavior and reduces runtime risk in trusted firmware deployments.
1 Commits
Jan 1, 2025January 2025 monthly summary for zephyrproject-rtos/trusted-firmware-a: Delivered a critical correctness fix for SVE vector length defaults on Neoverse-RD platforms and reinforced build-time configuration accuracy across multiple RD variants (RD-N2, RD-V1, RD-V1-MC, RD-V3). The change ensures reliable SVE behavior and reduces runtime risk in trusted firmware deployments.
January 2025
Activity
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CMakefile
Technical Skills
ARM ArchitectureContext SwitchingEmbedded SystemsFirmware DevelopmentInterrupt HandlingPlatform ConfigurationSystem Programming
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