[vfio-users] Emulated VGA and real card running in parallel

[Blank Field]

Cool, your setup is very similar to mine.
Except i've tried attaching three identical cards to one vm.
But what about the mouse?
My mouse input tend to freeze in weird games like minecraft, but i work
around this by adding a second USB emulated mouse.
Also, aw, if the emulated GPU turns itself offline in presence of a real
one, how can we do secondary pass through?
The kind of GPU assignment where we have a QEMU window with accelerated
graphics in it.
On Sep 17, 2015 1:13 AM, "Alex Williamson" <alex.l.williamson at gmail.com>
wrote:

> On Wed, Sep 16, 2015 at 3:45 PM, Nick Sukharev <nicksukharev at gmail.com>
> wrote:
>
>> Ok, so no way to make it work with W7. Does W7 have some limitation on
>> how many GPUs it can run?
>>
>
> AFAICT, It's not a GPU limitation, maybe a limitation of the guest driver
> for the emulated VGA.  I've run win7 with 6 Nvidia GRID GPUs assigned and
> all working (iirc), but the emulated VGA always cuts out after the boot
> animation.
>
>
>> On Wed, Sep 16, 2015 at 2:36 PM, Alex Williamson <
>> alex.l.williamson at gmail.com> wrote:
>>
>>> On Wed, Sep 16, 2015 at 3:31 PM, Nick Sukharev <nicksukharev at gmail.com>
>>> wrote:
>>>
>>>>
>>>> I managed to configure i7-5820K / Asrock x99 Extreme 4 / 3 different
>>>> radeons (R9 270, R9 270x and R7 240) for passthrough and I am pretty sure I
>>>> can even put a 4th card there if I need to. It only works properly with
>>>> UEFI bios in QEMU and I used stock Ubuntu 15.05 for everything except the
>>>> UEFI bios that I recompiled from source.
>>>>
>>>> I have several VMs, one for each card and I start them with emulated
>>>> graphics also enabled. This allows me to use the emulated keyboard/mouse
>>>> without any need to pass USB devices as well. The way it works now:
>>>> 1) I start a vm via CLI. It displays "Starting WIndows" in the emulated
>>>> window
>>>> 2) In a few seconds it switches to the second display connected to the
>>>> passthrough card.
>>>> I can still use the emulated window to grab/release mouse and keyboard
>>>> focus and it works pretty well for what I am using it for.
>>>>
>>>> For my host graphics I am using DisplayLink USB adapter to make all
>>>> PCIE cards available for passthrough.
>>>>
>>>> Here is the question I have: the emulated graphcs card gets disabled as
>>>> soon as the real card driver kicks in. Is it somehow possible to leave it
>>>> functional so that I can have a second virtual monitor in the window for my
>>>> VM?
>>>>
>>>
>>> It's not QEMU disabling the emulated graphics, it's the guest, so it
>>> depends on what guest you're running.  Windows 8 (and I assume 10) can
>>> support this, not so much with Win7.
>>>
>>
>
> _______________________________________________
> vfio-users mailing list
> vfio-users at redhat.com
> https://www.redhat.com/mailman/listinfo/vfio-users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/vfio-users/attachments/20150917/9699d8cc/attachment.htm>