The OpenBSD Hypervisor in the wild, a short story.

Подписаться 3,8 тыс.

Просмотров 13 тыс.

50% 1

OpenBSD Amsterdam started in the summer of 2018 after a poll on Twitter as an idea to start testing with vmm(4)/vmd(8). Mostly to see how far we could take it and more importantly to give back to the project. Little did we know where it would take us.
During this talk I will outline how it all started, how it’s build, how we operate the platform and what speedbumps we encountered.
We are a big proponent of using as much out of base as possible and it has influenced our design choices a lot. These choices will be highlighted when discussing how the platform is build and how it’s operated.
More info:
2019.eurobsdcon.org/talk-spea...

Наука

Опубликовано:

24 июл 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 15

@pasdenom.9062 4 года назад

Long story short: vmm/vmd are very hacky at the moment. A lot of work still need to be done so we can all have virtual machines running without problems on OpenBSD.

@brandonphilander661 4 года назад

Does BSD support vfio / gpu passthrough for Windows 10 in virtual machine?

@pasdenom.9062 3 года назад

@@brandonphilander661 I don't know, but you can easily read the source code.

@freeworld1875 3 года назад

The donations will help with the work that still needs to be done.

@beardymcbeardface69 Год назад

24:33 I remember in the early days of VMware virtualisation, VMware had some timer challenges, where you could see Windows VM clocks literally frozen, or ticking slowly, ticking only in big jumps and even ticking *_backwards!!!_* Oh and ticking really slowly with no mouse movement in RDP/console session and then suddenly ticking super fast when moving the mouse around fast in the RDP/console session! LOL Scheduled tasks would even fail to run, if the VM did not receive any sort of interrupts, like from mouse, keyboard or network traffic. It was crazy. Eventually VMware overcame these virtualised timer challenges and put out a white paper about it and the challenges of high quality virtualised timers. Those were some crazy times. It was a case of friends don't let friends virtualise NTP servers. LOL Virtualised NTP servers would literally oscillate erratically around realtime and their drift compensation would then amplify the problem, rather than reduce it, because the cause was not consistent.

@PhilippeLoctaux 4 года назад

thanks for the talk Mischa!

@RichardBuckerCodes 3 года назад

any updates?

@nxxxxzn 2 года назад

here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-OQCIy8INJig.html but you better know Dutch or use the autotranslator

@celestialadministration 3 года назад

Will openbsd ever be written in rust, haskell?

@pasdenom.9062 3 года назад

No. Rust isn't as simple as C, and will lead to possible unknown security breaches. Haskell has a garbage collector, forget it for system programming.

@gl3nda96 2 года назад

Certainly not!

@bananarobotoverlord 14 дней назад

@@pasdenom.9062Rust can be written almost isomorphically to C with the default ownership rules which are more secure than C. Try learning a bit of Rust.