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Method for enabling x2APIC by hot-add CPU, and server system

A server system and hot add technology, applied in the storage field, can solve the problem of inability to realize hot add x2APIC, and achieve the effect of simple implementation.

Active Publication Date: 2017-06-13
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] As mentioned above, the existing technology cannot realize the hot-add CPU to enable x2APIC when the hot-add CPU and the CPU where the SBSP is located are on different nodes.

Method used

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  • Method for enabling x2APIC by hot-add CPU, and server system
  • Method for enabling x2APIC by hot-add CPU, and server system
  • Method for enabling x2APIC by hot-add CPU, and server system

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Embodiment Construction

[0054] The present application provides a method and a server system for enabling x2APIC of a hot-add CPU, and effectively realizes hot-add CPU enabling x2APIC when the CPU of the hot-add CPU and the CPU where the SBSP resides are on different nodes, and the implementation method is simple and effective.

[0055] In order to enable those skilled in the art to better understand the present invention, the technical solution in this application will be clearly and completely described below in conjunction with the accompanying drawings in this application. Obviously, the described embodiment is only a part of the present invention Examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0056] The terms "first", "second" and the like (if any) in the description and claims of the present ...

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Abstract

The invention discloses a method for enabling an x2APIC (Advanced Programmable Interrupt Controller) by a hot-add CPU (Central Processing Unit), CPUs and a server system. The method comprises the steps that an SBSP (System Boot Strap Processor) of a first CPU stores a node ID of a second CPU in a synchronous register; a PBSP (Processor Boot Strap Processor) of the second CPU determines that the node ID of the second CPU is stored in the synchronous register; an x2APIC ID of the PBSP of the second CPU is obtained by utilizing the node ID and a default APIC ID of a PBSP of the hot-add CPU; a register corresponding to the PBSP enabling the second CPU is configured; the SBSP sends a fixed-point IPI (Inter-Processor Interrupt) to the PBSP of the second CPU through the x2APIC ID of the second CPU; and the SBSP collects x2APIC IDs of the PBSP of the second CPU and all APs (Application Processors). According to the method, the CPUs and the server system, the operation of enabling the x2APIC by the hot-add CPU is effectively realized when the hot-add CPU and the CPU where the SBSP is located are located at different nodes, and a realization mode is simple.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a method for hot adding CPU to enable x2APIC and a server system. Background technique [0002] With the development of the server industry, the requirements for system stability are getting higher and higher, and the system fault tolerance is becoming more and more important. In order to realize the fault tolerance capability of the system, the servers released by the server manufacturers have the central processing unit (full name in English: Central Processing Unit, English abbreviation: CPU) hot-swappable, memory hot-swappable, PCI-E (PCI-Express) device hot-swappable The unplugging feature has become the competitiveness of the server. At present, CPU hot-swapping has become an indispensable feature in high-end server systems. [0003] Generally speaking, a server system is composed of multiple CPUs. When one or more CPUs of a server system have a fatal error and need to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
Inventor 姜广吉周超
Owner XFUSION DIGITAL TECH CO LTD
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