公开(公告)号：US20200319913A1

公开(公告)日：2020-10-08

申请号：US16909068

申请日：2020-06-23

Applicant: Intel Corporation

Inventor： SANJAY K. KUMAR ,  RAJESH SANKARAN ,  UTKARSH Y. KAKAIYA ,  PRATIK M. MAROLIA

IPC: G06F9/455 ,  G06F12/10

Abstract: In one embodiment, an apparatus includes an input/output virtualization (IOV) device comprising: at least one function circuit to be shared by a plurality of virtual machines (VMs); and a plurality of assignable device interfaces (ADIs) coupled to the at least one function circuit, wherein each of the plurality of ADIs is to be associated with one of the plurality of VMs and comprises a first process address space identifier (PASID) field to store a first PASID to identify a descriptor queue stored in a host address space and a second PASID field to store a second PASID to identify a data buffer located in a VM address space. Other embodiments are described and claimed.