Invention Grant
- Patent Title: Managing the migration of virtual machines in the presence of uncorrectable memory errors
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Application No.: US17494826Application Date: 2021-10-05
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Publication No.: US11669388B2Publication Date: 2023-06-06
- Inventor: Sowgandh Sunil Gadi , Rajesh Venkatasubramanian , Venkata Subhash Reddy Peddamallu , Arunachalam Ramanathan , Timothy P Mann , Frederick Joseph Jacobs
- Applicant: VMware, Inc.
- Applicant Address: US CA Palo Alto
- Assignee: VMware, Inc.
- Current Assignee: VMware, Inc.
- Current Assignee Address: US CA Palo Alto
- Agency: Fountainhead Law Group P.C.
- Main IPC: G06F11/07
- IPC: G06F11/07 ; G06F9/455

Abstract:
Techniques for migrating virtual machines (VMs) in the presence of uncorrectable memory errors are provided. According to one set of embodiments, a source host hypervisor of a source host system can determine, for each guest memory page of a VM to be migrated from the source host system to a destination host system, whether the guest memory page is impacted by an uncorrectable memory error in a byte-addressable memory of the source host system. If the source host hypervisor determines that the guest memory page is impacted, the source host hypervisor can transmit a data packet to a destination host hypervisor of the destination host system that includes error metadata identifying the guest memory page as being corrupted. Alternatively, if the source host hypervisor determines that the guest memory page is not impacted, the source host hypervisor can attempt to read the guest memory page from the byte-addressable memory in a memory exception-safe manner.
Public/Granted literature
- US20220027231A1 Managing the Migration of Virtual Machines in the Presence of Uncorrectable Memory Errors Public/Granted day:2022-01-27
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