[pve-devel] Fixed not working pci_dev_reset for vfio devices

[Kamil Trzciński]

One more thing. Newer GeForce cards checks for KVM presence. More info
there: https://lists.gnu.org/archive/html/qemu-devel/2014-06/msg00302.html.

You need to specify custom cpu flags:
args: -cpu "host,hv_spinlocks=0xffff,hv_relaxed,+x2apic,kvm=off"



On Mon, Jun 30, 2014 at 9:58 AM, Kamil Trzciński <ayufan at ayufan.eu> wrote:
> The last time I tried it wasn't working. It most probably due to some
> issues with integrated and discrete graphics on newer boards. Take a
> look there: https://bbs.archlinux.org/viewtopic.php?id=162768.
>
> Kamil
>
>
> On Mon, Jun 30, 2014 at 9:41 AM, Alexandre DERUMIER <aderumier at odiso.com> wrote:
>> Thanks for the infos,
>>
>> I'll update the wiki soon.
>>
>>>>I also use this patch for qemu:
>>>>https://github.com/ayufan/pve-qemu-kvm-with-vfio/commit/afee03e8739cf9ee78408bec9a62cf5c558860f9
>>
>> Ok, should be ready in next pve-qemu-kvm
>>
>>
>>>>And this patches for kernel:
>>>>https://github.com/ayufan/linux-kernel-with-vga-passthrough/commits/vfio
>>
>> Do you have tried last pve 3.10 kernel ?
>>
>>
>> ----- Mail original -----
>>
>> De: "Kamil Trzciński" <ayufan at ayufan.eu>
>> À: "Alexandre DERUMIER" <aderumier at odiso.com>
>> Cc: "Kamil Trzciński" <ayufan at ayufan.eu>, pve-devel at pve.proxmox.com
>> Envoyé: Lundi 30 Juin 2014 09:37:30
>> Objet: Re: [pve-devel] Fixed not working pci_dev_reset for vfio devices
>>
>> MB: ASUS H81M-E (with integrated graphics)
>> GFX: GeForce GTX660
>>
>> I also use this patch for qemu:
>> https://github.com/ayufan/pve-qemu-kvm-with-vfio/commit/afee03e8739cf9ee78408bec9a62cf5c558860f9
>>
>> And this patches for kernel:
>> https://github.com/ayufan/linux-kernel-with-vga-passthrough/commits/vfio
>>
>> grub.cfg:
>> GRUB_CMDLINE_LINUX="intel_iommu=on"
>>
>> modules + initramfs:
>> kvm ignore_msrs=1
>> pci_stub ids=10de:11c0,10de:0e0b,8086:0412,8086:0c0c,8086:82c0
>>
>> And my lspci:
>> 00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell
>> Integrated Graphics Controller [8086:0412] (rev 06)
>> 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device
>> [10de:11c0] (rev a1)
>> 01:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:0e0b] (rev a1)
>>
>>
>> On Mon, Jun 30, 2014 at 9:26 AM, Alexandre DERUMIER <aderumier at odiso.com> wrote:
>>>>>Yes, I use it for some quite of time for my Windows machine on which I
>>>>>play games ;)
>>>
>>> Oh Great ! :)
>>>
>>> which graphic card model ?
>>>
>>> Do you have tuned grub.cfg ? (I'm thinking of iommu module)
>>>
>>>
>>>
>>> ----- Mail original -----
>>>
>>> De: "Kamil Trzciński" <ayufan at ayufan.eu>
>>> À: "Alexandre DERUMIER" <aderumier at odiso.com>
>>> Envoyé: Lundi 30 Juin 2014 08:54:15
>>> Objet: Re: [pve-devel] Fixed not working pci_dev_reset for vfio devices
>>>
>>> Yes, I use it for some quite of time for my Windows machine on which I
>>> play games ;)
>>>
>>> This is how looks my config:
>>> vga: serial0
>>> machine: q35
>>> hostpci0: 01:00,pcie=1,driver=vfio,x-vga=on
>>>
>>>
>>> On Mon, Jun 30, 2014 at 8:12 AM, Alexandre DERUMIER <aderumier at odiso.com> wrote:
>>>> Thanks for your patch!
>>>>
>>>> By the way, I need some tester for vfio-vga and pci express passthrough
>>>> Do you have tested it ?
>>>>
>>>> machine : q35
>>>> hostpci0 : 00:01, pcie=1,x-vga=on
>>>>
>>>> ----- Mail original -----
>>>>
>>>> De: "Kamil Trzciński" <ayufan at ayufan.eu>
>>>> À: pve-devel at pve.proxmox.com
>>>> Envoyé: Dimanche 29 Juin 2014 21:41:36
>>>> Objet: [pve-devel] Fixed not working pci_dev_reset for vfio devices
>>>>
>>>> Description in subject
>>>>
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