Patents by Inventor Philip Lantz

Philip Lantz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10817441
    Abstract: The present disclosure is directed to systems and methods sharing memory circuitry between processor memory circuitry and accelerator memory circuitry in each of a plurality of peer-to-peer connected accelerator units. Each of the accelerator units includes virtual-to-physical address translation circuitry and migration circuitry. The virtual-to-physical address translation circuitry in each accelerator unit includes pages for each of at least some of the plurality of accelerator units. The migration circuitry causes the transfer of data between the processor memory circuitry and the accelerator memory circuitry in each of the plurality of accelerator circuits. The migration circuitry migrates and evicts data to/from accelerator memory circuitry based on statistical information associated with accesses to at least one of: processor memory circuitry or accelerator memory circuitry in one or more peer accelerator circuits.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 27, 2020
    Assignee: INTEL CORPORATION
    Inventors: Sanjay Kumar, David Koufaty, Philip Lantz, Pratik Marolia, Rajesh Sankaran, Koen Koning
  • Publication number: 20200310993
    Abstract: The present disclosure is directed to systems and methods sharing memory circuitry between processor memory circuitry and accelerator memory circuitry in each of a plurality of peer-to-peer connected accelerator units. Each of the accelerator units includes physical-to-virtual address translation circuitry and migration circuitry. The physical-to-virtual address translation circuitry in each accelerator unit includes pages for each of at least some of the plurality of accelerator units. The migration circuitry causes the transfer of data between the processor memory circuitry and the accelerator memory circuitry in each of the plurality of accelerator circuits. The migration circuitry migrates and evicts data to/from accelerator memory circuitry based on statistical information associated with accesses to at least one of: processor memory circuitry or accelerator memory circuitry in one or more peer accelerator circuits.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Applicant: INTEL CORPORATION
    Inventors: Sanjay Kumar, David Koufaty, Philip Lantz, Pratik Marolia, Rajesh Sankaran, Koen Koning
  • Publication number: 20200226066
    Abstract: An apparatus is described. The apparatus includes a memory controller to interface with a multi-level memory having a near memory and a far memory. The memory controller to maintain first and second caches. The first cache to cache pages recently accessed from the far memory. The second cache to cache addresses of pages recently accessed from the far memory. The second cache having a first level and a second level. The first level to cache addresses of pages that are more recently accessed than pages whose respective addresses are cached in the second level. The memory controller comprising logic circuitry to inform system software that: a) a first page in the first cache that is accessed less than other pages in the first cache is a candidate for migration from the far memory to the near memory; and/or, b) a second page whose address travels a threshold number of round trips between the first and second levels of the second cache is a candidate for migration from the far memory to the near memory.
    Type: Application
    Filed: March 27, 2020
    Publication date: July 16, 2020
    Inventors: Eran SHIFER, Zeshan A. CHISHTI, Sanjay K. KUMAR, Zvika GREENFIELD, Philip LANTZ, Eshel SERLIN, Asaf RUBINSTEIN, Robert J. ROYER, JR.
  • Publication number: 20200012530
    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.
    Type: Application
    Filed: March 12, 2019
    Publication date: January 9, 2020
    Inventors: Utkarsh Y. KAKAIYA, Rajesh SANKARAN, Sanjay KUMAR, Kun TIAN, Philip LANTZ
  • Publication number: 20190114196
    Abstract: Examples include a method of live migrating a virtual device by creating a virtual device in a virtual machine, creating first and second interfaces for the virtual device, transferring data over the first interface, detecting a disconnection of the virtual device from the virtual machine, switching data transfers for the virtual device from the first interface to the second interface, detecting a reconnection of the virtual device to the virtual machine, and switching data transfers for the virtual device from the second interface to the first interface.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 18, 2019
    Inventors: Mitu AGGARWAL, Nrupal JANI, Manasi DEVAL, Kiran PATIL, Parthasarathy SARANGAM, Rajesh M. SANKARAN, Sanjay K. KUMAR, Utkarsh Y. KAKAIYA, Philip LANTZ, Kun TIAN
  • Publication number: 20190114283
    Abstract: Examples may include a computing platform having a host driver to get a packet descriptor of a received packet stored in a receive queue and to modify the packet descriptor from a first format to a second format. The computing platform also includes a guest virtual machine including a guest driver coupled to the host driver, the guest driver to receive the modified packet descriptor and to read a packet buffer stored in the receive queue using the modified packet descriptor, the packet buffer corresponding to the packet descriptor.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 18, 2019
    Applicants: Intel Corporation, Intel Corporation
    Inventors: Manasi DEVAL, Nrupal JANI, Anjali SINGHAI, Parthasarathy SARANGAM, Mitu AGGARWAL, Neerav PARIKH, Kiran PATIL, Rajesh M. SANKARAN, Sanjay K. KUMAR, Utkarsh Y. KAKAIYA, Philip LANTZ, Kun TIAN
  • Publication number: 20190114194
    Abstract: Examples may include a method of instantiating a virtual machine; instantiating a virtual device to transmit data to and receive data from assigned resources of a shared physical device by receiving input data requesting assigned resources for the virtual device, allocating assigned resources to the virtual device based at least in part on the input data, and mapping a page location in an address space of the shared physical device for a selected one of the assigned resources to a page location in a memory-mapped input/output (MMIO) space of the virtual device; and assigning the virtual device to the virtual machine, the virtual machine to transmit data to and receive data from the physical device via the MMIO space of the virtual device.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 18, 2019
    Inventors: Nrupal JANI, Manasi DEVAL, Anjali SINGHAI, Parthasarathy SARANGAM, Mitu AGGARWAL, Neerav PARIKH, Alexander H. DUYCK, Kiran PATIL, Rajesh M. SANKARAN, Sanjay K. KUMAR, Utkarsh Y. KAKAIYA, Philip LANTZ, Kun TIAN
  • Publication number: 20190114195
    Abstract: Examples may include a method of instantiating a virtual machine, instantiating a virtual device to transmit data to and receive data from assigned resources of a shared physical device; and assigning the virtual device to the virtual machine, the virtual machine to transmit data to and receive data from the physical device via the virtual device.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 18, 2019
    Inventors: Nrupal JANI, Manasi DEVAL, Anjali SINGHAI, Parthasarathy SARANGAM, Mitu AGGARWAL, Neerav PARIKH, Alexander H. DUYCK, Kiran PATIL, Rajesh M. SANKARAN, Sanjay K. KUMAR, Utkarsh Y. KAKAIYA, Philip LANTZ, Kun TIAN
  • Publication number: 20190108106
    Abstract: Examples include a method of performing failover of in an I/O architecture by allocating a first set of resources, associated with a first port of a physical device, to a virtual device, allocating a second set of resources, associated with a second port of the physical device, to the virtual device, assigning the virtual device to a virtual machine, activating the first set of resources, and transferring data between the virtual machine and the first port using the virtual device and the first set of resources. The method further includes detecting an error in the first set of resources, deactivating the first set of resources and activating the second set of resources, and transferring data between the virtual machine and the second port using the virtual device and the second set of resources.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 11, 2019
    Inventors: Mitu AGGARWAL, Nrupal JANI, Manasi DEVAL, Kiran PATIL, Parthasarathy SARANGAM, Rajesh M. SANKARAN, Sanjay K. KUMAR, Utkarsh Y. KAKAIYA, Philip LANTZ, Kun TIAN
  • Publication number: 20190107965
    Abstract: Examples may include a method of protecting memory and I/O transactions. The method includes allocating memory for an application, assigning a resource of a physical device to the application, assigning a process address space identifier to the assigned resource, creating a security enclave to protect the allocated memory of the application, and associating the security enclave with the process address space identifier to protect the allocated memory and the assigned resource.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 11, 2019
    Inventors: Manasi DEVAL, Nrupal JANI, Parthasarathy SARANGAM, Mitu AGGARWAL, Kiran PATIL, Rajesh M. SANKARAN, Sanjay K. KUMAR, Utkarsh Y. KAKAIYA, Philip LANTZ, Kun TIAN
  • Patent number: 10228981
    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.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: March 12, 2019
    Assignee: INTEL CORPORATION
    Inventors: Utkarsh Y. Kakaiya, Rajesh Sankaran, Sanjay Kumar, Kun Tian, Philip Lantz
  • Publication number: 20180321985
    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.
    Type: Application
    Filed: May 2, 2017
    Publication date: November 8, 2018
    Inventors: Utkarsh Y. KAKAIYA, Rajesh SANKARAN, Sanjay KUMAR, Kun TIAN, Philip LANTZ
  • Publication number: 20170090807
    Abstract: Managing connected data, such as a graph data store, includes a computing device with persistent memory and volatile memory. The computing device stores a graph data store with a plurality of nodes and edges in persistent memory. Each of the edges defines the relationship between at least two of the nodes. The nodes and edges may contain tags and properties containing additional information. In response to a search request query, the computing device generates an iterator object stored in volatile memory with a reference to one or more nodes and/or edges in the graph data store. The split between volatile and persistent memory allocation could be used for other objects, such as allocators and transactions. Other embodiments are described and claimed.
    Type: Application
    Filed: September 26, 2015
    Publication date: March 30, 2017
    Inventors: Vishakha Gupta, Alain Kagi, Philip Lantz, Subramanya Dulloor
  • Patent number: 8671225
    Abstract: A method for managing data between a virtual machine a bus controller includes transmitting an input output (IO) request from the virtual machine to a service virtual machine that owns the bus controller. According to an alternate embodiment, managing data between a virtual machine and a bus controller includes trapping a register access made by the virtual machine. A schedule is generated to be implemented by the bus controller. Status is returned to the virtual machine via a virtual host controller. Other embodiments are described and claimed.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: March 11, 2014
    Assignee: Intel Corporation
    Inventors: Kiran S. Panesar, Sanjay Kumar, Abdul R. Ismail, Philip Lantz
  • Patent number: 8347063
    Abstract: A method of improving USB device virtualization is proposed that allows giving virtual machines (VMs) direct access to USB devices with a combination hardware and software solutions. The USB host controller replaces device identifiers assigned by the VM with real device identifiers that are unique in the system. The real device identifiers are assigned by the virtual machine monitor (VMM) or the host controller.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: January 1, 2013
    Assignee: Intel Corporation
    Inventors: Kiran Panesar, Philip Lantz
  • Publication number: 20120030677
    Abstract: A method for managing data between a virtual machine a bus controller includes transmitting an input output (IO) request from the virtual machine to a service virtual machine that owns the bus controller. According to an alternate embodiment, managing data between a virtual machine and a bus controller includes trapping a register access made by the virtual machine. A schedule is generated to be implemented by the bus controller. Status is returned to the virtual machine via a virtual host controller. Other embodiments are described and claimed.
    Type: Application
    Filed: October 6, 2011
    Publication date: February 2, 2012
    Inventors: Kiran S. Panesar, Sanjay Kumar, Abdul R. Ismail, Philip Lantz
  • Patent number: 8065441
    Abstract: A method for performing virtualization, includes managing data between a virtual machine and a bus controller by transmitting an input output (IO) request from the virtual machine to a service virtual machine that owns the bus controller. According to an alternate embodiment, the method for performing virtualization includes managing isochronous data between a virtual machine and a bus controller. Other embodiments are described and claimed.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: November 22, 2011
    Assignee: Intel Corporation
    Inventors: Kiran S. Panesar, Sanjay Kumar, Abdul R. Ismail, Philip Lantz
  • Patent number: 7814496
    Abstract: According to one embodiment, USB device virtualization can be improved by giving virtual machines (VMs) direct access to USB devices with a combined hardware and software solution. One aspect is directed to including providing a set of PCI configuration registers and operational registers for each VM, providing an interrupt request line for each VM, and using a new schedule traversal algorithm for multiple schedules, including a fairness algorithm that prevents starvation of any VM's bulk traffic.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: October 12, 2010
    Assignee: Intel Corporation
    Inventors: Kiran Panesar, Philip Lantz, Rajesh Madukkarumukumana
  • Patent number: 7774794
    Abstract: A method of improving USB device virtualization to prevent bus bandwidth from being over allocated when isochronous USB devices are attached to multiple virtual machines by attaching a dummy device to each virtual machine which will mimic the bandwidth reservations made by real devices in other virtual machines, thus allowing each virtual machine to determine the true available bandwidth. The dummy devices are represented by incorporating a dummy device driver in each virtual machine and emulating the dummy device in software in the VMM.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: August 10, 2010
    Assignee: Intel Corporation
    Inventors: Kiran Panesar, Michael Goldsmith, Sanjay Kumar, Philip Lantz
  • Publication number: 20080065854
    Abstract: A processing system may include a service operating system (OS) and a guest virtual machine (VM). The service OS may be a host OS or an OS in a service VM, for instance. The guest VM may have a physical address space. In one embodiment, a pseudo-device driver in the service OS causes an address within the physical address space of the guest VM to be mapped to an address within a virtual address space of a user level monitor (ULM) running on top of the service OS. When an operation that involves the physical address space of the guest VM (e.g., a direct memory access (DMA) operation requested by the guest VM, an interrupt triggered by the guest VM, etc.) is detected, the ULM may use its virtual address space to access the physical address space of the guest VM. Other embodiments are described and claimed.
    Type: Application
    Filed: September 7, 2006
    Publication date: March 13, 2008
    Inventors: Sebastina Schoenberg, Udo Steinberg, Alain Kaegi, Tariq Masood, Philip Lantz, Andrew V. Anderson