zephyrproject-rtos/trusted-firmware-a
Nov 2024 – Dec 2024
2 Months active
Languages Used
AssemblyC
Technical Skills
ARM architectureCPU ArchitectureCrash handlingEmbedded SystemsEmbedded systemsLow-Level Programming
Igor Podgainõi
PROFILE
Igor Podgainõi
Worked on the zephyrproject-rtos/trusted-firmware-a repository to enhance support for 128-bit system registers and expand hardware compatibility. Developed features in C and Assembly to improve crash diagnostics by updating the EL3 crash handler, introducing new macros and definitions for accurate reporting of TTBR and VTTBR registers. Added Alto CPU platform support, including power control and SME handling, through new header and assembly files. Addressed a bug in EL1 context management to ensure full 128-bit register preservation during context switches, refining macros for system register writes. Focused on ARM architecture, low-level programming, and embedded systems to improve reliability and coverage.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
3Total
Bugs
1
Commits
3
Features
2
Lines of code
340
Activity Months2
Your Network
679 peopleSame Organization
@arm.com538
Work History
December 2024
1 Commits
Dec 1, 2024December 2024 monthly summary for zephyrproject-rtos/trusted-firmware-a: focused on correctness and reliability of EL1 context saving for 128-bit registers. Implemented a bug fix that ensured 128-bit system registers are saved correctly (no upper-bit zeroing) and introduced macros for writing 128-bit SYSREGs. Performed minor refactoring and adjustments to feature enablement to support the fix. The change improves context-switch reliability in ARM TrustZone environments and reduces risk of incorrect EL1 state on context switches.
1 Commits
Dec 1, 2024December 2024 monthly summary for zephyrproject-rtos/trusted-firmware-a: focused on correctness and reliability of EL1 context saving for 128-bit registers. Implemented a bug fix that ensured 128-bit system registers are saved correctly (no upper-bit zeroing) and introduced macros for writing 128-bit SYSREGs. Performed minor refactoring and adjustments to feature enablement to support the fix. The change improves context-switch reliability in ARM TrustZone environments and reduces risk of incorrect EL1 state on context switches.
December 2024
November 2024
2 Commits • 2 Features
Nov 1, 20242024-11 monthly summary for zephyrproject-rtos/trusted-firmware-a: Delivered key features and fixes for 128-bit register support and Alto CPU platform, improving crash diagnostics and expanding hardware coverage.
November 2024
2 Commits • 2 Features
Nov 1, 20242024-11 monthly summary for zephyrproject-rtos/trusted-firmware-a: Delivered key features and fixes for 128-bit register support and Alto CPU platform, improving crash diagnostics and expanding hardware coverage.
Activity
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Quality Metrics
Correctness100.0%
Maintainability86.6%
Architecture86.6%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
AssemblyC
Technical Skills
ARM architectureCPU ArchitectureContext ManagementCrash handlingEmbedded SystemsEmbedded systemsLow-Level ProgrammingLow-level programmingSystem Programming
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