公开(公告)号：US20180321985A1

公开(公告)日：2018-11-08

申请号：US15584979

申请日：2017-05-02

Applicant: Intel Corporation

Inventor： Utkarsh Y. KAKAIYA ,  Rajesh SANKARAN ,  Sanjay KUMAR ,  Kun TIAN ,  Philip LANTZ

IPC: G06F9/50 ,  H04L29/08 ,  H04L12/24 ,  H04L12/58

CPC classification number: G06F9/5077 ,  G06F9/5038 ,  G06F15/17 ,  G06F15/76 ,  H04L29/08126 ,  H04L29/08891 ,  H04L41/28 ,  H04L41/5051 ,  H04L51/26 ,  H04L61/6013 ,  H04T2001/2093

Abstract: Techniques for scalable virtualization of an Input/Output (I/O) device are described. An electronic device composes a virtual device comprising one or more assignable interface (AI) instances of a plurality of AI instances of a hosting function exposed by the I/O device. The electronic device emulates device resources of the I/O device via the virtual device. The electronic device intercepts a request from the guest pertaining to the virtual device, and determines whether the request from the guest is a fast-path operation to be passed directly to one of the one or more AI instances of the I/O device or a slow-path operation that is to be at least partially serviced via software executed by the electronic device. For a slow-path operation, the electronic device services the request at least partially via the software executed by the electronic device.

公开(公告)号：US20200012530A1

公开(公告)日：2020-01-09

申请号：US16351396

申请日：2019-03-12

Applicant: Intel Corporation

Inventor： Utkarsh Y. KAKAIYA ,  Rajesh SANKARAN ,  Sanjay KUMAR ,  Kun TIAN ,  Philip LANTZ

IPC: G06F9/50 ,  H04L12/58

Abstract: Techniques for scalable virtualization of an Input/Output (I/O) device are described. An electronic device composes a virtual device comprising one or more assignable interface (AI) instances of a plurality of AI instances of a hosting function exposed by the I/O device. The electronic device emulates device resources of the I/O device via the virtual device. The electronic device intercepts a request from the guest pertaining to the virtual device, and determines whether the request from the guest is a fast-path operation to be passed directly to one of the one or more AI instances of the I/O device or a slow-path operation that is to be at least partially serviced via software executed by the electronic device. For a slow-path operation, the electronic device services the request at least partially via the software executed by the electronic device.