Accelerated graphics in vbox 6

[Jung-uk Kim]

On 19. 5. 21., Johannes Lundberg wrote:
> Hi vbox folks! (cc: x11 list)
> 
> According to this
> https://www.phoronix.com/scan.php?page=article&item=virtualbox-60-vmsvga&num=1
> vbox can now use the vmwgfx kernel driver for accelerated graphics. With
> that I assume that virtualbox's own drm driver project is scrapped.

Actually, they moved vboxvideo KMS/DRM driver to Linux kernel.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/vboxvideo

And DDX driver was moved to Xorg repository.

https://cgit.freedesktop.org/xorg/driver/xf86-video-vbox

> I've been working on porting vmwgfx from Linux to our linuxkpi. It works
> pretty well with freebsd 13 as vmware guest on macos as long you're
> using only one vcpu (some race condition issue to be solved..).  It
> would be cool if we could get accelerated graphics in vbox, with freebsd
> as both host and guest since vmware can't run as host on freebsd.

Can you please port the vboxvideo driver to linuxkpi?

> Do you have any idea what would be required to get the host side of
> things working? Will it work automagically if the freebsd host has a drm
> driver loaded or do we need to port some code form linux/ to freebsd/
> within virtualbox?

Host driver is not necessary but it requires certain OpenGL extensions
and VirtualBox comes with a tool to check 2D/3D acceleration
requirements for hosts.

% /usr/local/lib/virtualbox/VBoxTestOGL --help
Oracle VM VirtualBox Helper for testing 2D/3D OpenGL capabilities 6.0.8
(C) 2009-2019 Oracle Corporation
All rights reserved.

Parameters:
  --test 2D             test for 2D (video) OpenGL capabilities
  --test 3D             test for 3D OpenGL capabilities
  --log <log_file_name> log the GL test result to the given file

Logging can alternatively be enabled by specifying the
VBOXGLTEST_LOG=<log_file_name> env variable

For example:

% /usr/local/lib/virtualbox/VBoxTestOGL --test 3D --log vbox.log
% cat vbox.log
00:00:00.000237 VBoxTestGL 6.0.8 r130347 freebsd.amd64 (May 16 2019
20:29:43) release log
00:00:00.000248 Log opened 2019-05-21T18:26:09.011262000Z
00:00:00.000304 OS Product: FreeBSD
00:00:00.000317 OS Release: 13.0-CURRENT
00:00:00.000329 OS Version: FreeBSD 13.0-CURRENT r347991 BEASTIE
00:00:00.000338 Executable: /usr/local/lib/virtualbox/VBoxTestOGL
00:00:00.000339 Process ID: 3330
00:00:00.000340 Package type: BSD_64BITS_GENERIC (OSE)
00:00:00.000350 Testing 3D Support:
...
00:00:00.396090 Testing 3D Succeeded!

> I'm happy to work together with you and put more effort into getting
> vmwgfx running stable in vmware/vbox if we can get host side of things
> working in vbox 6.

Thanks for working on it!

Jung-uk Kim

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