1# Onboarding Resources 2 3Various links to useful resources for learning about virtual machines and the technology behind 4crosvm. 5 6## Talks 7 8### [Chrome University](https://www.youtube.com/watch?v=2Pc71zYWFDM) by zachr (2018, 30m) 9 10- Life of a Crostini VM (user click -> terminal opens) 11- All those French daemons (Concierge, Maitred, Garcon, Sommelier) 12 13### [NYULG: Crostini](https://www.youtube.com/watch?v=WwrXqDERFm8) by zachr / reveman (2018, 50m) 14 15- Overlaps Chrome University talk 16- More details on wayland / sommelier from reveman 17- More details on crostini integration of app icons, files, clipboard 18- Lots of demos 19 20## Introductory Resources 21 22### OS Basics 23 24- [OSDev Wiki](https://wiki.osdev.org/Main_Page) (A lot of articles on OS development) 25- [PCI Enumeration](https://www.khoury.northeastern.edu/~pjd/cs7680/homework/pci-enumeration.html) 26 (Most of our devices are on PCI, this is how they are found) 27- [ACPI Source Language Tutorial](https://acpica.org/sites/acpica/files/asl_tutorial_v20190625.pdf) 28 29### Rust 30 31- [Rust Cheat Sheet](https://cheats.rs/) Beautiful website with idiomatic rust examples, overview of 32 pointer- and container types 33- [Rust Programming Tipz](https://github.com/ferrous-systems/elements-of-rust) (with a z, that’s how 34 you know it’s cool!) 35- Rust [design patterns](https://github.com/rust-unofficial/patterns) repo 36- Organized [collection](https://github.com/brson/rust-anthology/blob/master/master-list.md) of blog 37 posts on various Rust topics 38 39### KVM Virtualization 40 41- [Low-level tutorial](https://lwn.net/Articles/658511/) on how to run code via KVM 42- [KVM Hello World](https://github.com/dpw/kvm-hello-world) sample program (host + guest) 43- [KVM API docs](https://www.kernel.org/doc/html/latest/virt/kvm/api.html) 44- [Awesome Virtualization](https://github.com/Wenzel/awesome-virtualization) (Definitely check out 45 the Hypervisor Development section) 46 47### Virtio (device emulation) 48 49- [Good overview](https://developer.ibm.com/articles/l-virtio/) of virtio architecture from IBM 50- [Virtio drivers](https://www.redhat.com/en/blog/virtio-devices-and-drivers-overview-headjack-and-phone) 51 overview by RedHat 52- [Virtio specs](https://docs.oasis-open.org/virtio/virtio/v1.1/csprd01/virtio-v1.1-csprd01.html) 53 (so exciting, I can’t stop reading) 54- [Basics of devices in QEMU ](https://www.qemu.org/2018/02/09/understanding-qemu-devices/) 55 56### VFIO (Device passthrough) 57 58- [Introduction to PCI Device Assignment with VFIO](https://www.youtube.com/watch?v=WFkdTFTOTpA) 59 60### Virtualization History and Basics 61 62- By the end of this section you should be able to answer the following questions 63 - What problems do VMs solve? 64 - What is trap-and-emulate? 65 - Why was the x86 instruction set not “virtualizable” with just trap-and-emulate? 66 - What is binary translation? Why is it required? 67 - What is a hypervisor? What is a VMM? What is the difference? (If any) 68 - What problem does paravirtualization solve? 69 - What is the virtualization model we use with Crostini? 70 - What is our hypervisor? 71 - What is our VMM? 72- [CMU slides](http://www.cs.cmu.edu/~410-f06/lectures/L31_Virtualization.pdf) go over motivation, 73 why x86 instruction set wasn’t “virtualizable” and the good old trap-and-emulate 74- Why Intel VMX was needed; what does it do 75 ([Link](https://lettieri.iet.unipi.it/virtualization/2018/hardware-assisted-intel-vmx.pdf)) 76- What is a VMM and what does it do ([Link](http://pages.cs.wisc.edu/~remzi/OSTEP/vmm-intro.pdf)) 77- Building a super simple VMM blog article 78 ([Link](https://unixism.net/2019/10/sparkler-kvm-based-virtual-machine-manager/)) 79 80## Relevant Specs 81 82- [ACPI Specs](https://uefi.org/acpi/specs) 83- [DeviceTree Specs](https://www.devicetree.org/specifications/) 84- [Vhost-user protocol](https://qemu-project.gitlab.io/qemu/interop/vhost-user.html) 85