Sunil L

Bengaluru, Karnataka, India

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Summary

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Rockstar

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Top School

Sunil L is a systems software engineer with six years of experience building low-level firmware, device drivers, virtualization and emulator technologies, and diagnostic and neural accelerator frameworks on Unix/Linux platforms. He has hands-on assembly experience across Itanium, x86, ARM, and PowerPC and a track record of turning ideas into product roadmap items. His open-source contributions include enhancing RISC-V support in the widely used EDK II UEFI firmware and adding ACPI and firmware integration features to QEMU, reflecting deep expertise in firmware-to-virtualization plumbing. Based in Bengaluru, he combines practical systems engineering with a customer-focused mindset and a knack for cross-layer integration that bridges firmware, OS, and emulation stacks.

6 years of coding experience

BE Electronics and Communciation, BE Electronics and Communciation at UVCE, Bangalore

Github Skills (13)

c1710

firmware10

risc-v10

uefi10

system10

architectures10

c1110

emulation10

qemu10

architecture10

acpi10

virtualization10

python5

Programming languages (8)

DockerfileCSSCMakefileTeXASLHTMLPython

Github contributions (5)

qemu/qemu

Apr 2021 - Mar 2024

Official QEMU mirror. Please see https://www.qemu.org/contribute/ for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website.

Role in this project:

Back-end Developer & System Architect

Contributions:1 PR in 2 years 10 months

Contributions summary:Sunil primarily focused on contributing to the QEMU project, a machine emulator and virtualizer. Their work involved refactoring and moving the `load_image_to_fw_cfg()` function to a common location, which indicates code optimization and shared functionality across different architectures. The user also added features, such as enabling booting S-mode firmware from pflash and adding ACPI infrastructure, including DSDT, FADT, MADT, RHCT, and other tables, which demonstrate contributions to system architecture and firmware integration. These changes indicate a strong understanding of system-level programming and virtualization.

linuxtarballsqemusubmitpull-requests

tianocore/edk2

Jun 2021 - Nov 2022

EDK II

Role in this project:

Back-end Developer

Contributions:9 reviews, 3 commits, 53 PRs in 1 year 4 months

Contributions summary:Sunil's primary contributions revolve around enhancing the `edk2` firmware for RISC-V architecture. Their work includes adding support for RISC-V relocations like R_RISCV_CALL_PLT, R_RISCV_GOT_HI20, and R_RISCV_PCREL_LO12_S, which involved modifying the Elf64Convert.c file. They also fixed function names and added new modules for timer and CPU functionality, demonstrating a focus on low-level system programming within the UEFI environment. These changes are vital for enabling and improving RISC-V support in the firmware.

uefipythonfirmwarec

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