公开(公告)号：US20210357202A1

公开(公告)日：2021-11-18

申请号：US17389158

申请日：2021-07-29

Applicant: Intel Corporation

Inventor： Piotr SWIRYDCZUK ,  Sagar V. DALVI

IPC: G06F8/65 ,  G06F21/57 ,  G06F9/445

Abstract: Examples described herein include a device, that when operational, is to: during an update of firmware for the device, execute a reduced function firmware to maintain operation of the device, wherein the reduced function firmware provides the device with less functionality than the updated firmware. In some examples, the reduced function firmware comprises a verified reduced function firmware. In some examples, the reduced function firmware comprises an updated version of a reduced function firmware that overwrites a full firmware in firmware storage.

公开(公告)号：US20190108347A1

公开(公告)日：2019-04-11

申请号：US16213962

申请日：2018-12-07

Applicant: Intel Corporation

Inventor： Sergiu D. GHETIE ,  Wojciech POWIERTOWSKI ,  Jeanne GUILLORY ,  Neeraj S. UPASANI ,  Srihari NARAYANAN ,  Mohan J. KUMAR ,  Sagar V. DALVI

IPC: G06F21/57 ,  G06F9/4401 ,  G06F9/22

Abstract: A processor can be configured to access boot firmware from a remote location independent from use of a chipset. After a processor powers-on or reboots, the processor can execute microcode. The microcode will cause the processor to train a link with a remote device. The remote device can provide the processor with access to boot firmware. The processor can copy the boot firmware to the processor's cache or memory. The processor will attempt to authenticate the boot firmware. If the boot firmware is authenticated, the processor executes the copy of the boot firmware.