microsoft/openvmm
Jan 2025 – Apr 2025
3 Months active
Languages Used
AssemblyRust
Technical Skills
DebuggingHypervisor DevelopmentLow-Level ProgrammingPerformance OptimizationSystem ProgrammingVirtualization
Tejaswini Vibhute
PROFILE
Tejaswini Vibhute
Worked on the microsoft/openvmm repository to enhance virtualization and TDX-based security features, focusing on low-level system programming and CPU architecture. Over three months, delivered features such as improved CPU topology handling under hyperthreading, refined trusted domain isolation controls, and dedicated debug exception handling for TDX environments. Applied Rust and Assembly to strengthen error handling in the TDX tdcall path, introducing spec-aligned error types and robust validation to reduce silent failures. Enhanced CPU information retrieval by validating CPUID leaf 0xB and simplifying MSR handling, improving accuracy for virtualization workloads. The work emphasized correctness, security, and maintainability in hypervisor development.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
5Total
Bugs
1
Commits
5
Features
4
Lines of code
148
Activity Months3
Your Network
2163 peopleSame Organization
@intel.com2109
Shared Repositories
54
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Alex LandauMember
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Jiong Wang (Arm Ltd)Member
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Ben HillisMember
Bhargav ShahMember
Robert NowotnyMember
justus-camp-microsoftMember
Work History
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for microsoft/openvmm: Key feature delivered and its impact, with a concise set of achievements.
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for microsoft/openvmm: Key feature delivered and its impact, with a concise set of achievements.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025Month: 2025-03 | Microsoft/openvmm: Focused on improving robustness and error reporting in the TDX tdcall path. Key changes include introducing spec-aligned AcceptPagesError types and a return-code check in tdcall_map_gpa to ensure successful execution, reducing silent failures and enabling faster triage. This work enhances reliability of TDX operations and aligns with project standards for error handling and validation. Commit reference: 4dd8781a33b5db8b7890973f2438cf7ef9c3796c (#967).
March 2025
1 Commits • 1 Features
Mar 1, 2025Month: 2025-03 | Microsoft/openvmm: Focused on improving robustness and error reporting in the TDX tdcall path. Key changes include introducing spec-aligned AcceptPagesError types and a return-code check in tdcall_map_gpa to ensure successful execution, reducing silent failures and enabling faster triage. This work enhances reliability of TDX operations and aligns with project standards for error handling and validation. Commit reference: 4dd8781a33b5db8b7890973f2438cf7ef9c3796c (#967).
January 2025
3 Commits • 2 Features
Jan 1, 2025January 2025 (2025-01) focused on stabilizing and hardening virtualization topology and TDX-based security features in the microsoft/openvmm repository. Delivered corrections to CPU topology and per-socket VM threading, enhanced trusted domain isolation controls, and improved TDX debugging capabilities. These changes improve VM correctness, security posture, and observability for TD-enabled workloads.
3 Commits • 2 Features
Jan 1, 2025January 2025 (2025-01) focused on stabilizing and hardening virtualization topology and TDX-based security features in the microsoft/openvmm repository. Delivered corrections to CPU topology and per-socket VM threading, enhanced trusted domain isolation controls, and improved TDX debugging capabilities. These changes improve VM correctness, security posture, and observability for TD-enabled workloads.
January 2025
Activity
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Quality Metrics
Correctness86.0%
Maintainability84.0%
Architecture84.0%
Performance76.0%
AI Usage28.0%
Skills & Technologies
Programming Languages
AssemblyRust
Technical Skills
CPU ArchitectureDebuggingError HandlingHypervisor DevelopmentLow-Level DevelopmentLow-Level ProgrammingPerformance OptimizationRustSystem ProgrammingVirtualization
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