[vfio-users] ACS and IOMMU groups on Skylake/Sunrise

[Zir Blazer]

Wasn't there a year ago or two a guy that had a Skylake Motherboard from the Gigabyte brand that had all the Chipset PCIe Slots grouped together because the Firmware didn't exposed the ACS Control Bits or something along those lines? It was this one:
https://www.redhat.com/archives/vfio-users/2016-September/thread.html#00059
https://www.redhat.com/archives/vfio-users/2016-September/msg00071.html
You asked the guy for a full dump of the full 4 KiB of the extended PCI Configuration Space, then requested the Motherboard vendor to provide a fix for some Bits, which they did, fixing the issue after flashing.


As always, the author is missing the always-important data of saying which Motherboard he has. But according to the lspci output, is, guess what... Gigabyte!
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