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公开(公告)号：US20220350639A1
公开(公告)日：2022-11-03
申请号：US17651906
申请日：2022-02-22
Applicant: Intel Corporation
Inventor： Utkarsh Y. KAKAIYA , Ashok RAJ , Rajesh SANKARAN
Abstract: A processing device is provided. The processing device comprises an interface configured to receive information about an operation state of a surrogate processor. Further, the processing device comprises a processing circuitry configured to control the interface and to decide whether an interrupt addressed to the processing circuitry is processed by the processing circuitry or redirected to the surrogate processing circuitry based on an operation state of the processing circuitry and the surrogate processing circuitry.
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公开(公告)号：US20220027207A1
公开(公告)日：2022-01-27
申请号：US17361932
申请日：2021-06-29
Applicant: Intel Corporation
Inventor： Utkarsh Y. KAKAIYA , Rajesh SANKARAN , Sanjay KUMAR , Kun TIAN , Philip LANTZ
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.
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公开(公告)号：US20210004334A1
公开(公告)日：2021-01-07
申请号：US16772765
申请日：2018-03-28
Applicant: INTEL CORPORATION
Inventor： Kun TIAN , Xiao ZHENG , Ashok RAJ , Sanjay KUMAR , Rajesh SANKARAN
IPC: G06F12/1036 , G06F9/455 , G06F12/1081
Abstract: Embodiment of this disclosure provides a mechanism to extend a workload instruction to include both untranslated and translated address space identifiers (ASIDs). In one embodiment, a processing device comprising a translation manager is provided. The translation manager receives a workload instruction from a guest application. The workload instruction comprises an untranslated (ASID) and a workload for an input/output (I/O) device. The untranslated ASID is translated to a translated ASID. The translated ASID inserted into a payload of the workload instruction. Thereupon, the payload is provided to a work queue of the I/O device to execute the workload based in part on at least one of: the translated ASID or the untranslated ASID.
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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
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.
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