公开(公告)号：US20210373906A1

公开(公告)日：2021-12-02

申请号：US16883125

申请日：2020-05-26

Applicant: DELL PRODUCTS L.P.

Inventor： Mohammad Younas Khan Pathan ,  Annappa Kumar M N ,  Karunakar Poosapalli ,  Shivani Dwivedi ,  Naresh Dhiman ,  Thirupathi Komatireddy

IPC: G06F9/4401 ,  G06F16/11

Abstract: A system for controlling a processor, comprising a processor configured to load one or more instructions into a register for execution, a non-volatile memory coupled to the processor and configured to store data in a format that can be read by the processor and a description file stored in the non-volatile memory, the description file further comprising a plurality of information files, wherein each information file includes two or more types of predetermined data.

公开(公告)号：US20200310823A1

公开(公告)日：2020-10-01

申请号：US16370048

申请日：2019-03-29

Applicant: DELL PRODUCTS L.P.

Inventor： Karunakar Poosapalli ,  Sumanth Vidyadhara

IPC: G06F9/4401 ,  G06F21/57

Abstract: A method for secure data communications using an insecure protocol, comprising generating a data message at a data processor client. Adding a security key to the data message using the data processor client. Transmitting the data message to a remote data processor receiver over a data network. Determining whether the data message is authentic at the remote data processor receiver. Automatically responding to the data message with a location where additional data can be obtained from the remote data processor receiver if it is determined by the remote data processor receiver that the data message is authentic.

公开(公告)号：US20250021325A1

公开(公告)日：2025-01-16

申请号：US18899584

申请日：2024-09-27

Applicant: DELL PRODUCTS L.P.

Inventor： Shekar Babu Suryanarayana ,  Karunakar Poosapalli ,  Hung V. Ho ,  James L. Walker ,  Tsung-Lin Chuang ,  Chia-Hao Chang ,  Te-Lung Lin

IPC: G06F8/654 ,  G06F8/61 ,  G06F11/07

Abstract: An information handling system includes a memory and a processor. The memory stores a current basic input/output system (BIOS) firmware image. During a regular boot mode of the information handling, the processor creates a first set of tables associated with the current BIOS firmware image, stores the first tables to the memory, and receives a BIOS firmware update image. During a BIOS update boot mode of the information handling system, the processor creates a second plurality of tables associated with the BIOS firmware update image, and compares the first and second tables. In response to a difference being determined between the first and second tables, the processor aborts the BIOS update boot mode and generate an error log.

公开(公告)号：US12159133B2

公开(公告)日：2024-12-03

申请号：US17970821

申请日：2022-10-21

Applicant: DELL PRODUCTS L.P.

Inventor： Shekar Babu Suryanarayana ,  Karunakar Poosapalli ,  Hung V. Ho ,  James L. Walker ,  Tsung-Lin Chuang ,  Chia-Hao Chang ,  Te-Lung Lin

IPC: G06F8/654 ,  G06F8/61 ,  G06F11/07

Abstract: An information handling system includes a memory and a processor. The memory stores a current basic input/output system (BIOS) firmware image. During a regular boot mode of the information handling, the processor creates a first set of tables associated with the current BIOS firmware image, stores the first tables to the memory, and receives a BIOS firmware update image. During a BIOS update boot mode of the information handling system, the processor creates a second plurality of tables associated with the BIOS firmware update image, and compares the first and second tables. In response to a difference being determined between the first and second tables, the processor aborts the BIOS update boot mode and generate an error log.

公开(公告)号：US12045326B2

公开(公告)日：2024-07-23

申请号：US17864724

申请日：2022-07-14

Applicant: Dell Products L.P.

Inventor： Sumanth Vidyadhara ,  Karunakar Poosapalli ,  Bibby Yeh

IPC: G06F21/31 ,  G06F21/54 ,  G06F21/57

CPC classification number: G06F21/31 ,  G06F21/54 ,  G06F21/572

Abstract: A disclosed method installs an I/O trap protocol to provide an authentication callback function for handling I/O trap events. I/O trap events may include write operations accessing any of one or more identified I/O addresses. An I/O trap event may be registered with the authentication callback function for each of one or more identified I/O addresses. Original values of data may be stored in a memory resource. Any occurrences of an I/O trap event triggers the authentication callback function to perform I/O trap operations. The I/O trap operations may include determining whether the I/O trap event is associated with an approved driver and, if not, restoring data stored at the identified I/O address to an original value. Installing the I/O trap protocol may include installing the I/O trap protocol during a system management mode (SMM) phase of a UEFI boot sequence.

公开(公告)号：US11907071B2

公开(公告)日：2024-02-20

申请号：US17739687

申请日：2022-05-09

Applicant: Dell Products L.P.

Inventor： Shekar Babu Suryanarayana ,  Karunakar Poosapalli

IPC: G06F11/00 ,  G06F11/14 ,  G06F21/57 ,  G06F9/4401

CPC classification number: G06F11/1417 ,  G06F9/4416 ,  G06F21/572 ,  G06F2201/805 ,  G06F2221/033

Abstract: An information handling system may include a processor and first non-transitory computer-readable media communicatively coupled to the processor and having stored thereon a basic input/output system (BIOS) core comprising BIOS core firmware sufficient to execute features of a BIOS of the information handling system to a particular portion of BIOS execution and an extension agent. The extension agent may be configured to identify and enumerate a firmware volume of a second non-transitory computer-readable media communicatively coupled to the processor and having stored thereon a BIOS extension comprising BIOS extension firmware for executing completion of BIOS execution from the particular portion of BIOS execution and in response to unavailability of the firmware volume of the second non-transitory computer-readable media, failover to and recover the BIOS extension from extended firmware information stored on a networked storage resource communicatively coupled to the information handling system.

公开(公告)号：US20240020032A1

公开(公告)日：2024-01-18

申请号：US17866247

申请日：2022-07-15

Applicant: DELL PRODUCTS L.P.

Inventor： Karunakar Poosapalli ,  Shekar Babu Suryanarayana

IPC: G06F3/06 ,  G06F13/42

CPC classification number: G06F3/0631 ,  G06F13/4282 ,  G06F3/061 ,  G06F3/0679

Abstract: An information handling system may determine an allocated space in an option read-only memory (ROM), and store a firmware module in the allocated space in the option ROM. The system may load basic input/output system firmware from a serial peripheral interface flash memory with the firmware module from the allocated space in the option ROM.

公开(公告)号：US20230333755A1

公开(公告)日：2023-10-19

申请号：US17659034

申请日：2022-04-13

Applicant: Dell Products, L.P.

Inventor： Karunakar Poosapalli ,  Shekar Babu Suryanarayana

IPC: G06F3/06 ,  G06F9/4401

CPC classification number: G06F3/0631 ,  G06F9/4401 ,  G06F3/0604 ,  G06F3/0679

Abstract: Systems and methods for providing a storage extension system and method for secure and seamless access by various boot architectures are described. In some embodiments, an Information Handling System (IHS) may include a processor and a BIOS coupled to the processor, the BIOS having program instructions that, upon execution, cause the IHS to receive a request to access a bios storage region of the IHS from a driver, determine whether the device associated with the driver is a platform boot device such that when the boot device is a platform boot device, facilitate access to a native bios storage region of the bios storage region by the driver, and when the boot device is not a platform boot device, facilitate access to an extended bios storage region of the bios storage region by the driver.

公开(公告)号：US11726880B1

公开(公告)日：2023-08-15

申请号：US17675215

申请日：2022-02-18

Applicant: Dell Products L.P.

Inventor： Sumanth Vidyadhara ,  Karunakar Poosapalli

IPC: G06F11/14 ,  G06F9/4401

CPC classification number: G06F11/1417 ,  G06F9/4403 ,  G06F2201/805

Abstract: An information handling system may detect an exception, create a hand-off block in an NVMe boot partition in an NVMe device during a pre-extensible firmware interface phase of a boot process, and update the hand-off block with information associated with the exception. The system may also load an exception table to the NVMe boot partition, wherein the exception table includes an index associated with the exception that is mapped to a vector associated with an exception handler, and load the exception handler to the NVMe boot partition, wherein the exception handler resolves the exception.

公开(公告)号：US12254322B2

公开(公告)日：2025-03-18

申请号：US18364492

申请日：2023-08-03

Applicant: Dell Products L.P.

Inventor： Karunakar Poosapalli ,  Shekar Babu Suryanarayana ,  Harish Barigi ,  Alankritha T V

IPC: G06F9/4401 ,  G06F13/42

Abstract: In an information handling system that includes one or more PCIe devices, responsive to enumerating a PCIe device and adding the PCIe device to a configuration space of the platform, a mapping entry is added to a device handler mapping table to associate a device handler for the PCIe device with information for accessing the PCIe device. If the PCIe device fails to enumerate in a boot path, a virtual pseudo PCIe (VPP) node corresponding to the PCIe device may be created and enumerated to enable the boot to complete. Upon subsequently detecting and enumerating the actual, physical PCIe device, the VPP node and the PCIe device may be connected to enable the full functionality of the PCIe device without re-booting the platform.