arm64

esBPF: Stress-Testing compares Software-Offload with iptables

Nov 29, 2022 · 6 min read · Ubuntu Arm64 Linux Kernel ·

esBPF project has been over one year and it began with the idea that Is it worth filtering ingress packets on Software-Offload layer instead of Network Stack? Software-Offload is similar to Hardware-Offload, but it works in ethernet driver. Now time to do Stress-testing since its prototype was released and the …

Build upstream Ubuntu Kernel for Arm64 Raspberry-Pi

Nov 18, 2022 · 2 min read · ubuntu arm64 kernel ·

Share on:

Whole processes, git cloning the right codebase from a repository, installing all the packages, kernel configuration, and finally go building are such a challenge for beginners like me. Fortunately, Ubuntu Kernel Team provides an easy system for building kernel though. In this article, we are going to look at some …

Cache Memory QnA

Jul 25, 2021 · 2 min read · linux kernel arm64 ·

Share on:

잘못된 정보는 https://github.com/memnoth/me/issues/1에 남겨주시기 바랍니다. List Startup에서 D-cache=off 임에도 불구하고 cache line invalidation 하는 목적이 뭔가요? QnA Q. 아래 코드에서 D-cache = off 임에도 불구하고 cache line invalidation 하는 목적이 뭔가요? 1// 'head.S' of linux kernel 5.10 2/* 3* Kernel startup entry point. 4* --------------------------- 5* …

Why MMU and D-Cache must be off at Startup point

Jul 10, 2021 · 2 min read · linux kernel arm64 ·

Share on:

Q. 아래와 같이 startup point에서 MMU 와 D-Cache의 상태가 off 여야 하는데 이유가 뭔가요? 1 // 'head.S' of linux kernel 5.10 2 /* 3* Kernel startup entry point. 4* --------------------------- 5* 6* The requirements are: 7* MMU = off, D-cache = off, I-cache = on or off, 8* x0 = physical address to the FDT blob. 9* 10* This code is …