How Can I Determine Intel® Xeon® Processors that Support Access Control Services (ACS)?
Content Type: Compatibility | Article ID: 000087904 | Last Reviewed: 06/11/2025
Unable to determine which, if any, Intel® Xeon® Processors support the Access Control Services (ACS)
Access Control Service (ACS) defines a set of control points within a PCI* Express topology to determine whether a TLP is to be routed normally, blocked, or redirected.
ACS is part of SR-IOV (Single-root input/output virtualization), which is part of Intel® Virtualization Technology for Directed I/O.
Check if a processor supports Intel® Virtualization Technology for Directed I/O on the Intel Product Specifications site.