Hi All, I am a beginner in Virtualization and have just started a project on KVM. I want to record events at KVM level in a log file and then replay logs for further analysis. I am trying to implement the logic of research paper V2E (link below). I am trying to change mmu.c file in KVM code base. Since I have made changes to kernel module, I need to remove KVM module using command 'modprobe -r kvm' and trying to insert modified kernel object using 'insmmod /home/rohan/kvm-kmod/x86/kvm.ko' and run command 'dmesg | grep kvm' and output has 'kvm_intel: module verification failed: signature and/or required key missing - tainting kernel'. and kvm stop working. I google the issue and cannot find any credible solution. I have just started working on KVM module and I am not even confident about how to load modified KVM module for testing or do I need to compile whole Linux just to test any modification. Any resource material regarding how to start developing on KVM and test would be appreciated. Also, is there any sample that has already implemented record and replay at KVM level. Any help will be appreciated and thank you in advance. V2E https://dl.acm.org/citation.cfm?id=2151024.2151053
