Patent · US Active

Microcode(uCode) hot-upgrade method for bare metal cloud deployment

US11941391B2 · kind B2 · utility

0Cited by

0References

17Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Mohan J. Kumar · Beaverton, US
Sarathy Jayakumar · Portland, US
Chuan Song · Zhengzhou, CN
Ruixia Li · Nanjing, CN
Xiaojin Yuan · Shanghai, CN
Haiyue Wang · Shanghai, CN
Chong Han · Shanghai, CN

Key dates

Filing date	Apr 6, 2020
Grant date	Mar 26, 2024
Priority date	—
Expiry date	Jul 25, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/45541
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A microcode (uCode) hot-upgrade method for bare metal cloud deployment and associated apparatus. The uCode hot-upgrade method applies a uCode patch to a firmware storage device (e.g., BIOS SPI flash) through an out-of-band controller (e.g., baseboard management controller (BMC)). In conjunction with receiving a uCode patch, a uCode upgrade interrupt service is triggered to upgrade uCode for one or more CPUs in a bare-metal cloud platform during runtime of a tenant host operating system (OS) using an out-of-bound process. This innovation enables cloud service providers to deploy uCode hot-patches to bare metal servers for persistent storage and live-patch without touching the tenant operating system environment.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.