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1.发明授权公开(公告)号：US11669388B2
公开(公告)日：2023-06-06
申请号：US17494826
申请日：2021-10-05
Applicant: VMware, Inc.
Inventor： Sowgandh Sunil Gadi , Rajesh Venkatasubramanian , Venkata Subhash Reddy Peddamallu , Arunachalam Ramanathan , Timothy P Mann , Frederick Joseph Jacobs
CPC classification number: G06F11/0793 , G06F9/45558 , G06F11/079 , G06F11/0712 , G06F11/0727 , G06F11/0751 , G06F2009/4557 , G06F2009/45583
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.
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2.发明申请公开(公告)号：US20220027231A1
公开(公告)日：2022-01-27
申请号：US17494826
申请日：2021-10-05
Applicant: VMware, Inc.
Inventor： Sowgandh Sunil Gadi , Rajesh Venkatasubramanian , Venkata Subhash Reddy Peddamallu , Arunachalam Ramanathan , Timothy P Mann , Frederick Joseph Jacobs
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.
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