[vfio-users] Z170X IOMMU Groups

[Alex Williamson]

On Thu, Sep 22, 2016 at 12:47 PM, Nick Sarnie <commendsarnex at gmail.com>
wrote:

> Hi again,
>
> Very much to my surprise, Gigabyte replied and sent me a fixed BIOS. The
> new IOMMU groups (with ACS override patch kernel commandline removed for
> this boot), as well as my lspci information are below. I see four messages
> the following messages in dmesg now:
>
> [    0.523892] pci 0000:00:1c.0: Intel SPT PCH root port ACS workaround
> enabled
> [    0.524031] pci 0000:00:1c.4: Intel SPT PCH root port ACS workaround
> enabled
> [    0.524159] pci 0000:00:1c.5: Intel SPT PCH root port ACS workaround
> enabled
> [    0.524292] pci 0000:00:1d.0: Intel SPT PCH root port ACS workaround
> enabled
>
>
> IOMMU Groups: http://pastebin.com/raw/0dcHk8Xk
> lspci: http://pastebin.com/raw/1zAZuPBM
>
> Alex, please let me know if they missed anything else, so I can report it
> to them.
>

:-O

/me picks jaw off the ground

Kudos to Gigabyte!

So we now have:

 100: 01 00 01 14

0x14010001 = ID 0x0001 (AER), version 0x1, next 0x140

140: 0d 00 01 22

0x2201000d = ID 0x000d (ACS), version 0x1, next 0x220

220: 19 00 01 00

0x00010019 = ID 0x0019 (Secondary PCIe), version 0x1, next 0x0

So they've just added ACS into the chain, perfect.  Thanks,

Alex
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/vfio-users/attachments/20160922/9f5eb060/attachment.htm>