Patents by Inventor Michael Rothman

Michael Rothman 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: 12008359
    Abstract: Examples described herein provide a central processing unit (CPU) to reserve a region of memory for use to store both a boot firmware code and a second boot firmware code and to perform the second boot firmware code without reboot. The reserved region of memory can be a region that is not configured for access by an operating system (OS). The reserved region of memory comprises System Management Random Access Memory (SMRAM). If a first interrupt handler is not overwritten after a second boot firmware code is stored, the CPU can roll back to use of the first interrupt handler.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: June 11, 2024
    Assignee: Intel Corporation
    Inventors: Sarathy Jayakumar, Mohan J. Kumar, Murugasamy K. Nachimuthu, Michael A. Rothman
  • Publication number: 20240143513
    Abstract: An apparatus and method for switching between different types of paging using separate control registers and without disabling paging. For example, one embodiment of a processor comprises: a first control register to store a first base address of a first paging structure associated with a first type of paging having a first number of paging structure levels; a second control register to store a second base address of a second paging structure associated with a first type of paging having a second number of paging structure levels greater than the first number of paging structure levels; page walk circuitry to select either the first base address from the first control register or the second base address from the second control register responsive to a first address translation request, the selection based on a characteristic of program code initiating the address translation request.
    Type: Application
    Filed: October 1, 2022
    Publication date: May 2, 2024
    Inventors: Gilbert NEIGER, Andreas KLEEN, David SHEFFIELD, Jason BRANDT, Ittai ANATI, Vedvyas SHANBHOGUE, Ido OUZIEL, Michael S. BAIR, Barry E. HUNTLEY, Joseph NUZMAN, Toby OPFERMAN, Michael A. ROTHMAN
  • Patent number: 11609767
    Abstract: Examples for transitioning between operating systems are disclosed. An example apparatus includes reserved copy circuitry to copy state data of a first operating system from a first portion of first memory to a second portion of the first memory in response to an operating system toggle event; toggle event circuitry to, in response to a determination that the state data has been copied to the second portion of the first memory, initiate execution of a second operating system, the second operating system loaded from a hibernation file in second memory; and write out circuitry to copy the state data of the first operating system from the second portion of the first memory to the hibernation file while the second operating system is executed on the apparatus.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: March 21, 2023
    Assignee: Intel Corporation
    Inventors: Michael A. Rothman, Vincent J. Zimmer, Zijian You
  • Patent number: 11360907
    Abstract: A disclosed example to protect memory from buffer overflow or underflow includes defining an implicit bound pointer based on an implicit bound pointer definition in a configuration file for a memory region; instrumenting object code with an implicit buffer bound check based on the implicit bound pointer; and generating hardened executable object code based on the object code, the implicit buffer bound check, and the implicit bound pointer, the implicit bound pointer located in the hardened executable object code during a compilation phase to facilitate loading the implicit bound pointer in a global bounds table during runtime for access by the implicit buffer bound check.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: June 14, 2022
    Assignee: Intel Corporation
    Inventors: Junjing Shi, Qin Long, Liming Gao, Michael A. Rothman, Vincent J. Zimmer
  • Patent number: 11301257
    Abstract: In some embodiments, a PPM interface for a computing platform may be provided with functionality to facilitate, to an OS through the PPM interface, firmware performance data.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: April 12, 2022
    Assignee: Intel Corporation
    Inventors: Michael Rothman, Robert Gough, Mark Doran
  • Publication number: 20220100530
    Abstract: Examples for transitioning between operating systems are disclosed. An example apparatus includes reserved copy circuitry to copy state data of a first operating system from a first portion of first memory to a second portion of the first memory in response to an operating system toggle event; toggle event circuitry to, in response to a determination that the state data has been copied to the second portion of the first memory, initiate execution of a second operating system, the second operating system loaded from a hibernation file in second memory; and write out circuitry to copy the state data of the first operating system from the second portion of the first memory to the hibernation file while the second operating system is executed on the apparatus.
    Type: Application
    Filed: November 19, 2021
    Publication date: March 31, 2022
    Inventors: Michael A. Rothman, Vincent J. Zimmer, Zijian You
  • Patent number: 11182172
    Abstract: Technologies for transitioning between operating systems include a computing device having a main memory and a data storage device. The computing device executes a first operating system and monitors for an operating system toggle event. The toggle event may be a software command, a hardware buttonpress, or other user command. In response to the toggle event, the computing device copies state data of the first operating system to a reserved memory area. After copying the state data, the computing device executes a second operating system. While the second operating system is executing, the computing device copies the state data of the first operating system from the reserved memory area to the data storage device. The computing device monitors for operating system toggle events during execution of the second operating system and may similarly toggle execution back to the first operating system. Other embodiments are described and claimed.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: November 23, 2021
    Assignee: Intel Corporation
    Inventors: Michael A. Rothman, Vincent J. Zimmer, Zijian You
  • Patent number: 11061692
    Abstract: An embodiment of a semiconductor package apparatus may include technology to determine if a wake event corresponds to a zero-power state of a computer operating system, determine if a run-time state is valid to wake the operating system from the zero-power state, and wake the operating system from the zero-power state to the run-time state if the run-time state is determined to be valid. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: July 13, 2021
    Assignee: Intel Corporation
    Inventors: Michael Rothman, Vincent Zimmer
  • Patent number: 10929146
    Abstract: An embodiment of a semiconductor package apparatus may include technology to determine respective priority levels for one or more boot time events, determine an amount of execution time for the one or more boot time events, and automatically adjust a timer based on the amount of execution time and the priority levels for the one or more boot time events. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: February 23, 2021
    Assignee: Intel Corpoartion
    Inventors: Michael Kinney, Michael Rothman, Vincent Zimmer, Mark Doran
  • Patent number: 10852988
    Abstract: An embodiment of a semiconductor package apparatus may include technology to determine one or more filtered memory locations of a memory, determine if a read access for the memory corresponds to the one or more filtered memory locations, and return a pre-determined filter value as a result of the read access if the read access is determined to correspond to the one or more filtered memory locations. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: December 1, 2020
    Assignee: Intel Corporation
    Inventors: Michael Rothman, Vincent Zimmer
  • Patent number: 10831934
    Abstract: An embodiment includes an apparatus comprising: an out-of-band cryptoprocessor coupled to secure non-volatile storage; and at least one storage medium having firmware instructions stored thereon for causing, during runtime and after an operating system for the apparatus has booted, the cryptoprocessor to (a) store a key within the secure non-volatile storage, (b) sign an object with the key, while the key is within the cryptoprocessor, to produce a signature, and (c) verify the signature. Other embodiments are described herein.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: November 10, 2020
    Assignee: Intel Corporation
    Inventors: Vincent J. Zimmer, Nicholas J. Adams, Giri P. Mudusuru, Lee G. Rosenbaum, Michael A. Rothman
  • Patent number: 10762216
    Abstract: Methods, systems and storage media are disclosed for enhanced system boot processing that authenticates boot code based on biometric information of the user before loading the boot code to system memory. For at least some embodiments, the bio-metric authentication augments authentication of boot code based on a unique platform identifier. The enhanced boot code authentication occurs before loading of the operating system, and may be performed during a Unified Extensible Firmware Interface (UEFI) boot sequence. Other embodiments are described and claimed.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: September 1, 2020
    Assignee: Intel Corporation
    Inventors: Qian Ouyang, Jian J. Wang, Vincent J. Zimmer, Michael A. Rothman, Chao B. Zhang
  • Publication number: 20200257521
    Abstract: Examples described herein provide a central processing unit (CPU) to reserve a region of memory for use to store both a boot firmware code and a second boot firmware code and to perform the second boot firmware code without reboot. The reserved region of memory can be a region that is not configured for access by an operating system (OS). The reserved region of memory comprises System Management Random Access Memory (SMRAM). If a first interrupt handler is not overwritten after a second boot firmware code is stored, the CPU can roll back to use of the first interrupt handler.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 13, 2020
    Inventors: Sarathy JAYAKUMAR, Mohan J. KUMAR, Murugasamy K. NACHIMUTHU, Michael A. ROTHMAN
  • Patent number: 10684865
    Abstract: The present application is directed to access isolation for multi-operating system devices. In general, a device may be configured using firmware to accommodate more than one operating system (OS) operating concurrently on the device or to transition from one OS to another. An access isolation module (AIM) in the firmware may determine a device equipment configuration and may partition the equipment for use by multiple operating systems. The AIM may disable OS-based equipment sensing and may allocate at least a portion of the equipment to each OS using customized tables. When transitioning between operating systems, the AIM may help to ensure that information from one OS is not accessible to others. For example, the AIM may detect when a foreground OS is to be replaced by a background OS, and may protect (e.g., lockout or encrypt) the files of the foreground OS prior to the background OS becoming active.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: June 16, 2020
    Assignee: Intel Corporation
    Inventors: Kevin Y. Li, Vincent J. Zimmer, Xiaohu Zhou, Ping Wu, Zijian You, Michael A. Rothman
  • Publication number: 20200125497
    Abstract: A disclosed example to protect memory from buffer overflow or underflow includes defining an implicit bound pointer based on an implicit bound pointer definition in a configuration file for a memory region; instrumenting object code with an implicit buffer bound check based on the implicit bound pointer; and generating hardened executable object code based on the object code, the implicit buffer bound check, and the implicit bound pointer, the implicit bound pointer located in the hardened executable object code during a compilation phase to facilitate loading the implicit bound pointer in a global bounds table during runtime for access by the implicit buffer bound check.
    Type: Application
    Filed: March 30, 2017
    Publication date: April 23, 2020
    Inventors: Junjing Shi, Qin Long, Liming Gao, Michael A. Rothman, Vincent J. Zimmer
  • Patent number: 10585702
    Abstract: In some embodiments, the invention involves partitioning resources of a manycore platform for simultaneous use by multiple clients, or adding/reducing capacity to a single client. Cores and resources are activated and assigned to a client environment by reprogramming the cores' route tables and source address decoders. Memory and I/O devices are partitioned and securely assigned to a core and/or a client environment. Instructions regarding allocation or reallocation of resources is received by an out-of-band processor having privileges to reprogram the chipsets and cores. Other embodiments are described and claimed.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: March 10, 2020
    Assignee: Intel Corporation
    Inventors: Vincent J. Zimmer, Michael A. Rothman, Mark Doran
  • Patent number: 10564986
    Abstract: A disclosed example method to suspend and resume a device includes: after detecting a low-power suspend mode request, determining a storage performance of the device to store suspend state data; based on the storage performance of the device, setting a suspend flag to indicate a low-power suspend mode to a processor platform; when resuming from the low-power suspend mode, confirming a setting of a resume flag from the processor platform, the resume flag to notify an operating system to resume from the low-power suspend mode; and when the resume flag is set, restoring state data corresponding to an operating system context from a non-volatile dual-purpose system and storage memory.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 18, 2020
    Assignee: Intel Corporation
    Inventors: Michael A. Rothman, Vincent J. Zimmer, Glenn J. Hinton, Barnes Cooper, Leena K. Puthiyedath
  • Patent number: 10474473
    Abstract: A method for booting a data processing system (DPS) involves, during a boot process of the DPS, using a preliminary bootcode module from a low-speed nonvolatile memory (NVM) in the DPS to load a main bootcode module from a high-speed NVM in the DPS into a volatile random access memory (RAM) in the DPS, wherein the high-speed NVM supports a read speed that is faster than a maximum read speed of the low-speed NVM. The method also involves, during the boot process, after loading the main bootcode module from the high-speed NVM into the RAM, using the main bootcode module to boot the DPS to an operating system (OS). The method may also involve using the preliminary bootcode module to automatically determine whether the main bootcode module from the high-speed NVM has good integrity. Other embodiments are described and claimed.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: November 12, 2019
    Assignee: Intel Corporation
    Inventors: Michael A. Rothman, Vincent J. Zimmer, Giri P. Mudusuru, Jiewen Yao, Jie Lin
  • Publication number: 20190278611
    Abstract: The present application is directed to access isolation for multi-operating system devices. In general, a device may be configured using firmware to accommodate more than one operating system (OS) operating concurrently on the device or to transition from one OS to another. An access isolation module (AIM) in the firmware may determine a device equipment configuration and may partition the equipment for use by multiple operating systems. The AIM may disable OS-based equipment sensing and may allocate at least a portion of the equipment to each OS using customized tables. When transitioning between operating systems, the AIM may help to ensure that information from one OS is not accessible to others. For example, the AIM may detect when a foreground OS is to be replaced by a background OS, and may protect (e.g., lockout or encrypt) the files of the foreground OS prior to the background OS becoming active.
    Type: Application
    Filed: May 13, 2019
    Publication date: September 12, 2019
    Applicant: Intel Corporation
    Inventors: KEVIN Y. LI, VINCENT J. ZIMMER, XIAOHU ZHOU, PING WU, ZIJIAN YOU, MICHAEL A. ROTHMAN
  • Patent number: 10394295
    Abstract: Apparatuses, methods and storage medium associated with streamlined physical reset are described herein. In embodiments, an apparatus for computing, including streamlined physical reset, may comprise one or more processor cores; memory having a plurality of memory locations; and a basic input/output system (BIOS) to provide basic input/output system services, wherein the BIOS stays within a range of memory locations during each initialization of the BIOS, including an initialization of the BIOS that is part of a physical reset of the apparatus, to streamline the physical reset. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: August 27, 2019
    Assignee: Intel Corporation
    Inventors: Michael A. Rothman, Vincent J. Zimmer, Jiewen Yao