Seems that the system has to be running with bios Q35 UEFI. Standard bios
does not work. System is operational now.
On Mon, Mar 18, 2019, 6:30 AM Darin Schmidt <darinschm...@gmail.com> wrote:
> Still no luck getting the gtx 1080 to enable inside the VM. I see the code
> is being generated in the xml with the hook. But I still get error code 43.
> Someone mentioned doing it with eufi bios and that worked for them. So when
> I get back from work today, perhaps ill give that a try.
>
> On Mon, Mar 18, 2019, 6:10 AM Darin Schmidt <darinschm...@gmail.com>
> wrote:
>
>> I have gotten the system to see the card, its in device manager. The
>> problem seems to be that I cannot use it in the VM because from what I have
>> been finding out is that it gets and error code 43. Nvidia drivers disable
>> the card if it detects that its being used in a VM. I have found some code
>> to use to hook it into the xml before_vm_starts.
>>
>> 99_mask_kvm
>> #!/usr/bin/python2
>>
>> import hooking
>> domxml = hooking.read_domxml()
>>
>> hyperv = domxml.getElementsByTagName('hyperv')[0]
>> smm = domxml.createElement('vendor_id')
>> smm.setAttribute('state', 'on')
>> smm.setAttribute('value', '1234567890ab')
>> hyperv.appendChild(smm)
>>
>> features = domxml.getElementsByTagName('features')[0]
>> kvm = domxml.createElement('kvm')
>> hidden = domxml.createElement('hidden')
>> hidden.setAttribute('state', 'on')
>> kvm.appendChild(hidden)
>> features.appendChild(kvm)
>>
>> hooking.write_domxml(domxml)
>>
>>
>> I am currently reinstalling the drivers to see if this helps.
>>
>> kvm off and vender_id is now in the xml code that get generated when the
>> VM is started. Im going off of examples Im finding online. Perhaps I just
>> need to add the 10de to it instead of some generic # others are using.
>>
>> On Mon, Mar 18, 2019 at 6:02 AM Nisim Simsolo <nsims...@redhat.com>
>> wrote:
>>
>>> Hi
>>>
>>> Vendor ID of Nvidia is usually 10de.
>>> You can locate 'vendor ID:product ID' by running lspci command, for
>>> example:
>>> [root@intel-vfio ~]# lspci -Dnn | grep -i nvidia
>>> 0000:03:00.0 VGA compatible controller [0300]: NVIDIA Corporation
>>> GK104GL [Quadro K4200] [10de:11b4] (rev a1)
>>> 0000:03:00.1 Audio device [0403]: NVIDIA Corporation GK104 HDMI Audio
>>> Controller [10de:0e0a] (rev a1)
>>> [root@intel-vfio ~]#
>>>
>>> In this example, the vendor ID of VGA controller is 10de and the product
>>> ID is 11b4
>>>
>>> Please bare in mind that you need to enable IOMMU, add pci-stub (prevent
>>> the host driver for using GPU device) and disable the default nouveau
>>> driver on the host Kernel command line.
>>> to do that:
>>> 1. Edit host /etc/sysconfig/grub and add the next to GRUB_CMDLINE_LINUX:
>>>
>>> - intel_iommu=on or amd_iommu=on
>>> - pci-stub.ids=10de:11b4,10de:0e0a
>>> - rdblacklist=nouveau
>>>
>>> 2. Regenerate the boot loader configuration using grub2-mkconfig command:
>>> # grub2-mkconfig -o /etc/grub2.cfg
>>> 3. Reboot the host.
>>> 4. Verify configuration:
>>> [root@intel-vfio ~]# cat /proc/cmdline
>>> BOOT_IMAGE=/vmlinuz-3.10.0-957.5.1.el7.x86_64
>>> root=/dev/mapper/vg0-lv_root ro crashkernel=auto rd.lvm.lv=vg0/lv_root
>>> rd.lvm.lv=vg0/lv_swap rhgb quiet pci-stub.ids=10de:11b4,10de:0e0a
>>> intel_iommu=on rdblacklist=nouveau LANG=en_US.UTF-8
>>> [root@intel-vfio ~]#
>>>
>>>
>>> After running this, you should be able to passthrough GPU to VM.
>>>
>>> BTW, why are you using engine-config and not doing it from oVirt UI or
>>> using virsh edit command?
>>>
>>> Thanks
>>>
>>>
>>> On Mon, Mar 18, 2019 at 1:52 AM Darin Schmidt <darinschm...@gmail.com>
>>> wrote:
>>>
>>>> Hello all, im trying to figure out how to configure the custom
>>>> properties to enable my NVIDIA card to work in the VM. Its my understanding
>>>> that the drives dont work because it detects its in a VM......
>>>>
>>>> Im trying to do something like this:
>>>>
>>>> engine-config -s
>>>> UserDefinedVMProperties="kvmhidden=^(true|false)$;{type=vendor_id;state={^(on|off)$;value=^([0-9])$}}"
>>>>
>>>>
>>>> But thats clearly not working. If I do this:
>>>>
>>>> engine-config -s
>>>> UserDefinedVMProperties="kvmhidden=^(true|false)$;vendor_id={state=^(on|off)$;value=^([0-9])$}"
>>>>
>>>>
>>>> It works but, the options are messed up. Im not sure how to find out
>>>> the correct syntax to get this to work. Would appreciate any advice.
>>>>
>>>
>>>
>>> --
>>> Nisim Simsolo
>>> QE -Testing Engineer
>>> IRC: nsimsolo
>>> int phone - 8272305
>>> mobile - 054-4779934
>>>
>>
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