[vfio-users] intel skylake passthrough

[globalgorrilla at fastmail.fm]

Hi Nicolas,

Would you be able to send the full IOMMU groups tree for both NUCs? It's
nice to see for the record. I was looking at using a Broadwell or
Haswell one  myself.

Skylake was already out of real consideration for me as I was assuming
there would be the same lack of isolation as your're noting.

Slightly off topic ... I was leaning towards the Haswell NUC though
since apparently only that IGD 4600 supports 3 external monitors via MST
hub ... do you know anything about that vis-a-vis the Broadwell and
Skylake NUCs?

Seems like the NUCs are going backwards as the Intel packages go
forward ... :(

On Fri, Jan 22, 2016, at 07:26 AM, nicolas prochazka wrote:
> Hello, I just need a confimation, with my nuc broadwell I can do
> passthrough of my sound card without problem, because of a good
> iommu group, but it seems impossible with my new skylake nuc group 7
> is not viable ...... please, tell me that a solution is possible .
> Regards, Nicolas
>
> Broadwell
>
> [nicolas-hard-365e3600-7279-11e3-91e4-b8aeed728e68]lspci 00:00.0 Host
> bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
> 00:02.0 VGA compatible controller: Intel Corporation Broadwell-U
> Integrated Graphics (rev 09) 00:03.0 Audio device: Intel Corporation
> Broadwell-U Audio Controller (rev 09) 00:14.0 USB controller: Intel
> Corporation Wildcat Point-LP USB xHCI Controller (rev 03) 00:16.0
> Communication controller: Intel Corporation Wildcat Point-LP MEI
> Controller #1 (rev 03) 00:19.0 Ethernet controller: Intel Corporation
> Ethernet Connection (3) I218-V (rev 03)
> 00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High
>    Definition Audio Controller (rev 03)
> 00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express
>    Root Port #1 (rev e3)
> 00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express
>    Root Port #4 (rev e3)
> 00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI
>    Controller (rev 03)
> 00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller
>    (rev 03)
> 00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA
>    Controller [AHCI Mode] (rev 03)
> 00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller
>    (rev 03) 02:00.0 Network controller: Intel Corporation Wireless
>    7265 (rev 59)
>
> audio /sys/kernel/iommu_groups/3 /sys/kernel/iommu_groups/3/devices
> /sys/kernel/iommu_groups/3/devices/0000:00:16.0
>
> Now, with my new nuc skylake  : [nuc-skylake-9787be61-53d5-1246-cb75-
> b8aeed7d8885]lspci 00:00.0 Host bridge: Intel Corporation Sky Lake
> Host Bridge/DRAM Registers (rev 09) 00:02.0 VGA compatible controller:
> Intel Corporation Sky Lake Integrated Graphics (rev 0a) 00:14.0 USB
> controller: Intel Corporation Device 9d2f (rev 21) 00:14.2 Signal
> processing controller: Intel Corporation Device 9d31 (rev 21) 00:16.0
> Communication controller: Intel Corporation Device 9d3a (rev 21)
> 00:17.0 SATA controller: Intel Corporation Device 9d03 (rev 21)
> 00:1c.0 PCI bridge: Intel Corporation Device 9d14 (rev f1)
> 00:1d.0 PCI bridge: Intel Corporation Device 9d18 (rev f1)
> 00:1e.0 Signal processing controller: Intel Corporation Device 9d27
>    (rev 21)
> 00:1e.6 SD Host controller: Intel Corporation Device 9d2d (rev 21)
> 00:1f.0 ISA bridge: Intel Corporation Device 9d48 (rev 21)
> 00:1f.2 Memory controller: Intel Corporation Device 9d21 (rev 21)
> 00:1f.3 Audio device: Intel Corporation Device 9d70 (rev 21)
> 00:1f.4 SMBus: Intel Corporation Device 9d23 (rev 21)
> 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection I219-
>    V (rev 21) 01:00.0 Network controller: Intel Corporation Wireless
>    8260 (rev 3a) 02:00.0 Non-Volatile memory controller: Samsung
>    Electronics Co Ltd Device a802 (rev 01) /sys/kernel/iommu_groups/7
>    /sys/kernel/iommu_groups/7/devices
>    /sys/kernel/iommu_groups/7/devices/0000:00:1f.0
>    /sys/kernel/iommu_groups/7/devices/0000:00:1f.2
>    /sys/kernel/iommu_groups/7/devices/0000:00:1f.3
>    /sys/kernel/iommu_groups/7/devices/0000:00:1f.4
>    /sys/kernel/iommu_groups/7/devices/0000:00:1f.6
>
>
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