Re: [vfio-users] vfio, xeon e3s, acs, & gpus -- oh my!

2017-04-02 Thread Joshua Hoblitt
While Intel's various artificial market segmentation attempts are irritating, my guess that ACS being absent from desktop oriented products is more a case of a recycled PCIe design from haswell rather than disabled silicon. It is unfair to label an absent feature as "iffy". Broadwell-E is still t

Re: [vfio-users] vfio, xeon e3s, acs, & gpus -- oh my!

2017-04-02 Thread Joshua Hoblitt
I decided to go with an E6-1650 v4 / C612 based motherboard as I wanted both ECC memory and a BMC. This required switching from U to RDIMMs, which I typically don't use in a desktop, but there is theoretically a small RAS improvement with RDIMMs. The cost works out to ~$350 more than a E3 system a

Re: [vfio-users] vfio, xeon e3s, acs, & gpus -- oh my!

2017-03-31 Thread Joshua Hoblitt
On 03/31/2017 01:22 PM, Alex Williamson wrote: >> which does claim ACS support in the overview sheet. Does anyone know if >> ACS is indeed working with the "pex 8747" and/or the sm x1?sat series of >> motherboards? Alternatively, does anyone know of an E3-1200 motherboard >> that does have working

[vfio-users] vfio, xeon e3s, acs, & gpus -- oh my!

2017-03-31 Thread Joshua Hoblitt
Hi Folks, Long time listener (~2days), first time... Based on years of pain-free experience with VF NICs, I naively thought that installing a second GPU in a desktop for VM pass through would be a straight forward task. This has turned out to be an incorrect assumption. I have two desktop syste