[vfio-users] Supermicro C7Z170-OCE, a rather interesing Skylake Motherboard for VFIO if PEX8747 downstream ACS works

[Alex Williamson]

On Fri, Dec 25, 2015 at 5:49 PM, Zir Blazer <zir_blazer at hotmail.com> wrote:

>
> So basically, I would like someone to confirm if PEX8747 ACS support works
> downstream, even on Intel consumer platforms.
>

No.  Whether or not a PCIe switch supports ACS is irrelevant when it's
placed in a configuration downstream of a PCIe root port that does not
support ACS.  The entire path from the endpoint to the IOMMU must support
ACS in order for devices to be isolated.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/vfio-users/attachments/20151225/a7662128/attachment.htm>