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Neeraj Upadhyay

PROFILE

Neeraj Upadhyay

Developed Secure AVIC support for SEV-SNP guests in the torvalds/linux repository, focusing on robust APIC virtualization and secure guest interaction. The work involved implementing a dedicated AVIC driver in C, managing APIC backing page initialization, and setting up APIC ID and vector management to support advanced interrupt handling. Integrated support for IPI, NMI, and LAPIC timer events, along with EOI handling and MSR interception, to enforce Secure AVIC policies. Enhanced system architecture by enabling kexec readiness and explicit guest capability signaling, ensuring production stability. Demonstrated expertise in kernel development, low-level programming, and virtualization on x86 architecture.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

16Total
Bugs
0
Commits
16
Features
1
Lines of code
711
Activity Months1

Your Network

2346 people

Same Organization

@amd.com
1561

Shared Repositories

785
Taeyang LeeMember
Guan-Chun WuMember
gongqiMember
Andreas HindborgMember
Andrey VatoropinMember
Aaron MaMember
Ian AbbottMember
Aboorva DevarajanMember
Chia-Lin Kao (AceLan)Member

Work History

August 2025

16 Commits • 1 Features

Aug 1, 2025

August 2025 monthly performance summary for torvalds/linux: Focused delivery of Secure AVIC support for SEV-SNP guests, enabling robust APIC virtualization and secure guest interaction. Implemented a dedicated AVIC driver, APIC backing page initialization, APIC ID setup, and vector management, with comprehensive support for IPI/NMI/LAPIC timer, EOI handling, and MSR interception/enablement to enforce Secure AVIC policies. Also advanced guest capability signaling and kexec readiness to ensure production-readiness and deployment stability.

Activity

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Quality Metrics

Correctness98.8%
Maintainability85.0%
Architecture98.8%
Performance85.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C

Technical Skills

C programminghardware accelerationkernel developmentlow-level programmingsystem architecturesystem programmingvirtualizationx86 architecture

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

torvalds/linux

Aug 2025 Aug 2025
1 Month active

Languages Used

C

Technical Skills

C programminghardware accelerationkernel developmentlow-level programmingsystem architecturesystem programming