Accelerated graphics in vbox 6
Jung-uk Kim
jkim at FreeBSD.org
Tue Jun 25 18:06:39 UTC 2019
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On 19. 6. 25., Jung-uk Kim wrote:
> On 19. 5. 21., Jung-uk Kim wrote:
>> On 19. 5. 21., Johannes Lundberg wrote:
>>> Hi
>>>
>>> On 5/21/19 11:46 AM, Jung-uk Kim wrote:
>>>> 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
>>>
>>>
>>>>
>>>>
It's been there for quite some time and no progress have been made for
>>> the time I've been tracking it. Seems abandoned to me and my
>>> impression is that that one is scrapped in favor of vmwgfx...
>>> Do anyone know if vboxvideo is suppose to be in working state
>>> (the one in linux kernel)?
>>
>> It was added to staging for almost two years ago. Please see the
>> original patch submission.
>>
>> https://lwn.net/Articles/726355/
>>
>> Recently they moved it out of staging (via merging
>> drm-next-2019-05-09).
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/co
mmit/?id=131abc56e1bacef23cb7b340519d36e2f5adb2a9
>>
>>
>>
>>
It means Linux 5.2 release will have it by default.
>>
>> It doesn't look dead to me. ;-)
>>
>>>> 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?
>>>
>>> vmwgfx seems like the better choice if it's used by both
>>> vmware and vbox (v6+). But if it's suppose to be in a working
>>> state I can take a look..
>>
>> ...
>>
>> AFAIK VirtualBox graphics stack is in a working state.
>
> I found it is ported now.
>
> https://github.com/FreeBSDDesktop/kms-drm/commits/drm-v5.0
>
> I tried it and it's somewhat working, thanks!
>
> However, I found two problems.
>
> 1. Console does not refresh automatically.
>
> When vboxvideo.ko is loaded, console stays black. Console preview
> looks fine, though. I found it's redrawn when the window is
> resized. Note I only tried it on a Windows host. I will try it
> with FreeBSD host soon but I think it'll be the same.
>
> 2. Console does not resize dynamically.
>
> Actually, it is not vboxvideo.ko's fault. It happens because
> vt(4) does not support monitor hotplug.
>
> https://www.virtualbox.org/wiki/Guest_resizing
>
> After I tried it out, I realized vboxvideo.ko is just a KMS driver
> and modesetting driver is used for X.org. IOW, we cannot resize
> X.org window dynamically when vboxvideo.ko is used. With
> vboxvideo.ko or vboxvideo_drv.so, 3D acceleration is still handled
> by the Chromium OpenGL pass-through stub. As always, it may be
> enabled with setting OPENGL option for
> emulators/virtualbox-ose-additions.
>
> BTW, Phoronix once reported 3D acceleration with VMware driver
> does not look good on VirtualBox anyway. :-p
>
> http://www.phoronix.com/vr.php?view=27348
Sorry, the link was wrong. I meant to add this link.
https://www.phoronix.com/vr.php?view=27277
Jung-uk Kim
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