NVIDIA/edk2-nvidia
Apr 2025 – Jun 2025
2 Months active
Languages Used
AssemblyC
Technical Skills
Device DriversEmbedded SystemsInterrupt HandlingPCIe ConfigurationShell ApplicationsTimer Management
Cian Costello
PROFILE
Cian Costello
During a two-month period, Chris Costello developed three UEFI shell utilities—TimerUtil, GicUtil, and PcieUtil—for the NVIDIA/edk2-nvidia repository, focusing on hardware diagnostics and PCIe interoperability. He extended PCIe capability support in microsoft/mu_basecore, adding diagnostics for advanced features across PCIe versions 2.1 to 6.0. Using C and Assembly, Chris streamlined GicUtil by inlining ArmGicLib definitions and removing the Software Generated Interrupt path, reducing external dependencies and aligning with upstream edk2 changes. His work demonstrated depth in low-level programming, embedded systems, and device driver development, resulting in improved maintainability and diagnostic capabilities across both repositories.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
4Total
Bugs
0
Commits
4
Features
3
Lines of code
4,227
Activity Months2
Your Network
1701 peopleSame Organization
@nvidia.com1525
Shared Repositories
176
Girish MahadevanMember
Nick RamirezMember
Bob MorganMember
Abdul Lateef AttarMember
Abhishek MainkarMember
Anshu BoonapalliMember
anushaMember
Alok KulkarniMember
Alex HaydockMember
Work History
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for NVIDIA/edk2-nvidia focused on dependency cleanup and alignment with upstream edk2 changes. The main deliverable was simplifying GicUtil by inlining necessary ArmGicLib definitions and removing the Software Generated Interrupt (SGI) sending path in response to upstream changes. This work reduces maintenance burden, minimizes risk of divergence from upstream, and improves build stability.
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for NVIDIA/edk2-nvidia focused on dependency cleanup and alignment with upstream edk2 changes. The main deliverable was simplifying GicUtil by inlining necessary ArmGicLib definitions and removing the Software Generated Interrupt (SGI) sending path in response to upstream changes. This work reduces maintenance burden, minimizes risk of divergence from upstream, and improves build stability.
June 2025
April 2025
3 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary focusing on key accomplishments, business impact, and technical achievements across NVIDIA/edk2-nvidia and microsoft/mu_basecore. No explicit bugs reported in the provided data; the month was focused on feature delivery and capability enhancements that improve hardware diagnostics and interoperability.
April 2025
3 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary focusing on key accomplishments, business impact, and technical achievements across NVIDIA/edk2-nvidia and microsoft/mu_basecore. No explicit bugs reported in the provided data; the month was focused on feature delivery and capability enhancements that improve hardware diagnostics and interoperability.
Activity
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Quality Metrics
Correctness92.4%
Maintainability92.4%
Architecture92.4%
Performance90.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
AssemblyC
Technical Skills
ARM ArchitectureDevice DriversDriver DevelopmentEmbedded SystemsEmbedded systemsHardware interfacesInterrupt HandlingLow-level programmingPCIePCIe ConfigurationPCIe specificationsShell ApplicationsShell CommandsTimer ManagementUEFI Development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
microsoft/mu_basecore
Apr 2025 – Apr 2025
1 Month active
Languages Used
C
Technical Skills
Driver DevelopmentEmbedded SystemsEmbedded systemsHardware interfacesLow-level programmingPCIe