Patents by Inventor Eugene David CHO

Eugene David CHO 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).

  • Publication number: 20220398105
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with the plurality of hardware devices. The BMC includes executable instructions for monitoring a parameter of one or more of the hardware devices of the IHS when a custom BMC firmware stack is executed on the BMC. The instructions that monitor the parameter are separate and distinct from the instructions of the custom BMC firmware stack. When the parameter exceeds a specified threshold, the instructions are further executed to control the BMC to perform one or more operations to remediate the excessive parameter.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 15, 2022
    Applicant: Dell Products, L.P.
    Inventors: Timothy M. Lambert, Eugene David Cho, Akkiah Choudary Maddukuri, Chandrasekhar Mugunda, Arun Muthaiyan, Hasnain Shabbir, Alaric J. Silveira, Sreeram Veluthakkal
  • Publication number: 20220398103
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with the plurality of hardware devices. The BMC includes executable instructions for beginning execution of a first BMC firmware stack, and during execution of the first BMC firmware stack, halt execution of the first BMC firmware stack, and begin execution of a second BMC firmware stack. At least a portion of the executable instructions used to generate the first BMC firmware stack are different than the executable instructions used to generate the second BMC firmware stack.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 15, 2022
    Applicant: Dell Products, L.P.
    Inventors: Akkiah Choudary Maddukuri, Chandrasekhar Mugunda, Prashanth Giri, Eugene David Cho, Donald W. Gerhart, Yogesh Prabhakar Kulkarni
  • Publication number: 20220398152
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with multiple hardware devices of the IHS. The BMC includes executable instructions for monitoring a parameter of one or more of the hardware devices when a custom BMC firmware stack is executed on the BMC. The instructions that monitor the parameter are separate and distinct from the instructions of the custom BMC firmware stack. The instructions also control the BMC to perform one or more operations to remediate an excessive parameter when the parameter exceeds a specified threshold.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 15, 2022
    Applicant: Dell Products, L.P.
    Inventors: Eugene David Cho, Prashanth Giri, Timothy M. Lambert, Akkiah Choudary Maddukuri, Chandrasekhar Mugunda, Arun Muthaiyan, Sreeram Veluthakkal
  • Publication number: 20220398319
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with the plurality of hardware devices. The BMC includes executable instructions for when a custom BMC firmware stack is executed on the BMC, monitoring a parameter of one or more of the hardware devices of the IHS. The instructions that monitor the parameter are separate and distinct from the instructions of the custom BMC firmware stack. The instructions also controls the BMC to perform one or more operations to remediate an excessive parameter when the parameter exceeds a specified threshold.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 15, 2022
    Applicant: Dell Products, L.P.
    Inventors: Eugene David Cho, Timothy M. Lambert, Akkiah Choudary Maddukuri, Chandrasekhar Mugunda, Sreeram Veluthakkal
  • Publication number: 20220398144
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with the plurality of hardware devices. The BMC includes a first processor for executing a custom BMC firmware stack, and transmitting a watchdog message at an ongoing basis. The BMC also includes a second processor for receiving the watchdog message. When the watchdog message is received within a specified elapsed period of time, allow continued operation of the custom BMC firmware stack, and when not received within the specified elapsed period of time, place the BMC in a failsafe mode of operation.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 15, 2022
    Applicant: Dell Products, L.P.
    Inventors: Eugene David Cho, Timothy M. Lambert, Akkiah Choudary Maddukuri, Chandrasekhar Mugunda, Arun Muthaiyan, Sreeram Veluthakkal
  • Publication number: 20220398320
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with the plurality of hardware devices. The BMC includes instructions for executing a first BMC firmware stack that uses certain data for its operation. The data used by the first BMC firmware stack is stored in a first memory location. The instructions are further configured to halt execution of the first BMC firmware stack, and begin execution of a second BMC firmware stack by copying the data from the first memory location to a second memory location used by the second BMC firmware stack.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 15, 2022
    Applicant: Dell Products, L.P.
    Inventors: Akkiah Choudary Maddukuri, Chandrasekhar Mugunda, Marshal F. Savage, Prashanth Giri, Eugene David Cho
  • Publication number: 20220390517
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with the plurality of hardware devices. The BMC includes a first processor configured to execute a custom BMC firmware stack, and a second processor including executable instructions for receiving a request to perform a test on the first processor in which the request is received through a secure communication session established with a remote IHS. The instructions further perform the acts of controlling the first processor to perform the test according to the request, the first processor generating test results associated with the test, and transmitting the test results to the remote IHS through the secure communication session.
    Type: Application
    Filed: June 3, 2021
    Publication date: December 8, 2022
    Applicant: Dell Products, L.P.
    Inventors: Timothy M. Lambert, Eugene David Cho
  • Publication number: 20220245222
    Abstract: A BMC firmware security system includes a BMC coupled to a programmable circuit device and a first storage subsystem. In response to BMC initialization, the BMC uses a system identifier to verify that a license in the first storage subsystem authorizes the BMC to use BMC firmware in the BMC, uses branding identity information in the BMC to verify that the BMC is branded for the BMC firmware, determines that the programmable circuit device identifies the BMC firmware and, in response, the performs BMC initialization operations using the BMC firmware. A BIOS is coupled to the programmable circuit device and a second storage system. In response to BIOS initialization, the BIOS uses the branding identity information in the second storage subsystem to identify the BMC firmware, determines that the programmable circuit device identifies the BMC firmware and, in response, performs BIOS initialization operations.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 4, 2022
    Inventors: Patrick Oliver Boyd, Marshal F. Savage, Eugene David Cho, Mukund P. Khatri
  • Patent number: 11151255
    Abstract: In one or more embodiments, one or more systems, methods, and/or process may allow a customer to install and boot their own firmware securely, without compromising secure boot. A baseboard management controller (BMC) may include a BMC firmware stored via a BMC partition of a non-volatile storage, a customer firmware image including a customer firmware and a signed customer boot block (CBB) file including a CBB, a hidden root key (HRK) hash of the CBB based on a HRK, and a manufacturer signature. The BMC firmware may, when an alternate path to boot the CBB is detected, verify the manufacturer signature on the CBB and the HRK hash, verify the HRK hash based on the unique HRK, and when the manufacturer signature and the HRK hash have been verified, hardware lock the BMC partition, disable the HRK, and transfer control to the CBB.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: October 19, 2021
    Assignee: Dell Products L.P.
    Inventors: Eugene David Cho, Michael Emery Brown, Marshal F. Savage
  • Publication number: 20200134185
    Abstract: In one or more embodiments, one or more systems, methods, and/or process may allow a customer to install and boot their own firmware securely, without compromising secure boot. A baseboard management controller (BMC) may include a BMC firmware stored via a BMC partition of a non-volatile storage, a customer firmware image including a customer firmware and a signed customer boot block (CBB) file including a CBB, a hidden root key (HRK) hash of the CBB based on a HRK, and a manufacturer signature. The BMC firmware may, when an alternate path to boot the CBB is detected, verify the manufacturer signature on the CBB and the HRK hash, verify the HRK hash based on the unique HRK, and when the manufacturer signature and the HRK hash have been verified, hardware lock the BMC partition, disable the HRK, and transfer control to the CBB.
    Type: Application
    Filed: October 26, 2018
    Publication date: April 30, 2020
    Inventors: Eugene David Cho, Michael Emery Brown, Marshal F. Savage
  • Patent number: 10353779
    Abstract: In accordance with embodiments of the present disclosure, an information handling system may include a host system comprising a host system processor and a device coupled to the host system processor. The information handling system may also include a management controller communicatively coupled to the host system processor and configured to provide management of the information handling system via management traffic communicated between the management controller and a network external to the information handling system and perform runtime verification of a firmware image of the management controller by responsive to each particular read request of the firmware image during runtime of the firmware, verifying integrity of a respective block of the read request and responsive to determining the respective block is corrupted, causing a bootloader of the firmware to, on a subsequent boot of the firmware image, perform recovery of the firmware image.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: July 16, 2019
    Assignee: Dell Products L.P.
    Inventors: Piyush Sharma, Eugene David Cho, Kiran George Vetteth, Murali K. Somarouthu, Michael Emery Brown, Brian L. Brelsford
  • Publication number: 20180322012
    Abstract: In accordance with embodiments of the present disclosure, an information handling system may include a host system comprising a host system processor and a device coupled to the host system processor. The information handling system may also include a management controller communicatively coupled to the host system processor and configured to provide management of the information handling system via management traffic communicated between the management controller and a network external to the information handling system and perform runtime verification of a firmware image of the management controller by responsive to each particular read request of the firmware image during runtime of the firmware, verifying integrity of a respective block of the read request and responsive to determining the respective block is corrupted, causing a bootloader of the firmware to, on a subsequent boot of the firmware image, perform recovery of the firmware image.
    Type: Application
    Filed: May 5, 2017
    Publication date: November 8, 2018
    Applicant: Dell Products L.P.
    Inventors: Piyush SHARMA, Eugene David CHO, Kiran George VETTETH, Murali K. SOMAROUTHU, Michael Emery BROWN, Brian L. BRELSFORD