- Patent Title: Virtual machine migration detection by a hosted operating system
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Application No.: US16682877Application Date: 2019-11-13
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Publication No.: US11520612B2Publication Date: 2022-12-06
- Inventor: Brian Frank Veale , Juan M. Casas, Jr. , Caleb Russell Olson , Amanda Liem
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Garg Law Firm, PLLC
- Agent Rakesh Garg; Nathan Rau
- Main IPC: G06F9/455
- IPC: G06F9/455 ; G06F9/445

Abstract:
In an embodiment, a guest operating system (OS) running on a virtual machine (VM) detects a VM migration, where the embodiment comprises storing, by the guest OS, a VM identifier (VMID) provided by the VM and a first host identifier (HID) provided by a host computer system in a computer memory. The embodiment also comprises determining, by the guest OS, that the VM performs migrations that are transparent to the guest OS. The embodiment further comprises detecting, by the guest OS, that the VM has been migrated based on a comparison of the first HID to a second HID provided to the guest OS in response to an HID request from the guest OS.
Public/Granted literature
- US20210141654A1 VIRTUAL MACHINE MIGRATION DETECTION BY A HOSTED OPERATING SYSTEM Public/Granted day:2021-05-13
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