As a note, the first character of your COPYING file in the repo seems to be typo-d. ;)
Ooops. Will fix. :) Thanks!
That's already b0rken in the Oracle sources.
VirtualBox KVM Public Release
61–70 of 205 posts
Re: VirtualBox KVM Public Release
#62If you go into VM settings > system > acceleration > paravirtualization interface you can select KVM, what's the difference between this and that?
Re: VirtualBox KVM Public Release
#63Any chance this gets upstreamed?
I’d actually much, much rather see it set up as a proper fork (rebranded etc.), and then the features that Oracle extorts people with in the “free” but not actually free extension pack (like USB pass through) re-implemented and included directly with no ‘extension’ required.
Much of the reason I refuse to use Virtualbox for anything is how scummy Oracle is.
Re: VirtualBox KVM Public Release
#64So this basically turns VirtualBox into a replacement for virt-manager and virsh?
AFAIK VirtualBox does not support PCI passthrough (like GPU), how is this case handled?
Since I've moved to QEMU/KVM on Linux I've never looked back at VirtualBox, but I use the latter on Windows and there I'm always remembered of how much nicer and friendlier the GUI is.
Edit: I just noticed that VirtualBox has experimental PCI passthrough via the extension package [0], could this be used with the KVM backend?
[0] https://docs.oracle.com/en/virtualization/virtualbox/6.0/adm...
Re: VirtualBox KVM Public Release
#65If you go into VM settings > system > acceleration > paravirtualization interface you can select KVM, what's the difference between this and that?
What you can configure in the GUI is an enlightenment that the guest will see. This is usually done to improve guest performance.
You can sill select these PV interfaces with VirtualBox-KVM, but the underlying hypervisor is different (kvm vs vboxdrv).
Re: VirtualBox KVM Public Release
#66If you go into VM settings > system > acceleration > paravirtualization interface you can select KVM, what's the difference between this and that?
The paravirtualization option affects the interface presented for the guest operating system for dealing with being virtualized.
This new code is about using different virtualization technology on the host system.
Re: VirtualBox KVM Public Release
#67Earlier quoted context omitted.
The out-of-the-box performance of Windows in VirtualBox is very good and usually better than virt-manager (Qemu). You can tune Qemu to great performance as well, but it takes some fiddling. VirtualBox is in general very user friendly. Guest integration (drag'n'drop, clipboard), USB passhthrough and audio support is also top-notch in VBox.
> The out-of-the-box performance of Windows in VirtualBox is very good and usually better than virt-manager (Qemu). You can tune Qemu to great performance as well, but it takes some fiddling. VirtualBox is in general very user friendly. I haven't found a significative difference but if you have found one and can tune qemu to same level,why don't you share the xml template of your machine to the world and to upstream'…
Not sure about drag'n'drop. Also I've noticed that even when you're aware of the way USB passthrough in virt-manager GUI works that it seems to have some bugs.
I'm mostly interested in if I can use virtualbox accelerated video with kvm because virgl3d seems well behind in that area.
Re: VirtualBox KVM Public Release
#68Is it possible to use virtualbox's accelerated video adapters with the KVM backend?
Re: VirtualBox KVM Public Release
#69How does it enhance security and performance of virtualized environments compared to the standard VirtualBox kernel module?
Well, KVM is used by Google and AWS and others for their clouds. As such, there are a lot of eyes on KVM code. The vboxdrv kernel module that provides the same functionality in vanilla VBox definitely has fewer people looking at it. It also has anti-features, such as code upload from the userspace VirtualBox process to the kernel. This is also the largest security issue with vanilla VBox, because a lot of emulation c…
And could one swap between the two backends with the same VM image (.vbox +.vdi) to see which one gave the better performance?
Re: VirtualBox KVM Public Release
#70Earlier quoted context omitted.
Mostly Linux, but also Windows when I had a VFIO passthrough setup. I don't think it's even possible to set it up with Virtualbox to have decent enough performance.
You can also setup VFIO in VirtualBox/KVM. We haven't polished it yet though. You can check the video here to see GPU virtualization in action: https://www.cyberus-technology.de/products/hypervisor (Don't mind the English, we are not native speakers. :)
I'm really curious about this, is it gpu para-virtualization or actual VFIO requiring built in support from the gpu hardware?