Kishore Kumar Ravi

Project: Multiple Processor Communication (or) Remote proc communication between APPS, ADSP, CDSP, MODEM and TZ sub systems

Description: This Project involves communication between multiple processors achieved using remoteproc framework by RPMSG protocol with different IPC mechanism using own layers such as SMP2P/Glink/IPCRTR

Environment: C language, Device driver, HLOS Linux IPC mechanisms and OS concepts

Roles and Responsibilities:

• Understanding the Qualcomm multi-processor internal transport layer protocols such as Glink, IPCRTR and SMP2P
• Enablement of transport layer in different targets by activating source codes
• Extensively worked on Linux HLOS side for developing and bug fixing in Application processor communications
• Actively contributed in enhancing internal API's for transport layers on HLOS side (Linux)
• Implemented short command feature for Glink transport layer using linux rpmsg protocol
• Worked on active issues, bug fixes and live debugging across different targets such as mobile, modem, XR Platforms
• Validating functionality of our protocol between each processor in active targets
• Upstream porting and propagations for different linux kernel versions such as 5.10, 5.15 and 6.1
• Code submission in GIT and peer review

Project 2: Platform Development of Security for Infotainment Connected Car Systems

Duration: 2.2 Years (Client location: Harman)

Description: This Project involves implementation of TA and CA in OP-TEE using, and Implemented version dependency changes for Toyota Infotainment systems

Environment: C, Linux, RTOS

Role:

• Understanding the capabilities of OP-TEE
• Implemented Client Application and Trusted Application in OP-TEE for operations like encrypt/decrypt/sign/verify using RSA and ECDSA algorithm for Toyota Cars
• Implemented read/write/getsize operations for RPMB embedded storage system
• Ensuring Communication between the client and server (TLS) by adding a proprietary engine plugin to OpenSSL for Signing and Verification
• Worked on PKI (Public and Private Keys) and Certificates
• Involved in implementing version dependency changes from Toyota-CY20 to Toyota-Brazil for kernel, u-boot and RTOS (hartos)
• Developed UNIT test code using Google Test tool
• Code submission in GIT and peer review
• Design document & Flow chart preparation

Project 1: XEN Hypervisor

Duration: 10 months (Insite: Global edge)

Description: The goal of Xen hypervisor project is to run multiple OS on top of linux machine and rendering guest display from QEMU to host machine

Role:

• Building customized Linux and android
• Bring up Guest OS on top of Linux OS
• Configure Network, Audio and Video drives
• Understanding the Ethernet driver
• Understanding QEMU source code and implemented guest display pass through to host machine
• Preparing design document and flow chart