Patent ID: 11886903
Assignee: nan
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method, comprising:
executing a first virtual machine and a second virtual machine on a host computing device, wherein:
the first virtual machine manages guest virtual machines,
the second virtual machine operates as a temporary bridge virtual machine including temporary bridge I/O data and is connected to the first virtual machine, and
the first virtual machine operates as a I/O data bridge to a physical resource, wherein the first virtual machine is configured to enable the guest virtual machines to communicate with a first I/O process to access a virtual resource;

live migrating the guest virtual machines connected to the first I/O process of the first virtual machine to the second virtual machine on the host computing device,
wherein live migrating the guest virtual machines connected to the first I/O process of the first virtual machine to the second virtual machine on the host computing device comprises:
connecting the guest virtual machines to a second I/O process of the second virtual machine, and
live migrating the guest virtual machines to the second I/O process of the second virtual machine;

after live migrating the guest virtual machines:
pausing the second I/O process of the second virtual machine, and
flushing the temporary bridge I/O data of the second virtual machine to the first virtual machine;

subsequent to pausing the second I/O process of the second virtual machine and flushing the temporary bridge I/O data of the second virtual machine to the first virtual machine, sending a notification from the second virtual machine to the first virtual machine that prompts the first virtual machine to:
transfer, to the physical resource, outgoing data communicated to the first I/O process, and
relinquish control of the physical resource;

based on the notification:
transferring, by the first virtual machine and to the physical resource, the outgoing data communicated to the first I/O process, and
relinquishing, by the first virtual machine, control of the physical resource;

after the first virtual machine has relinquished control of the physical resource:
acquiring, by the second virtual machine, control of the physical resource, and
destroying temporary I/O data bridges connecting the guest virtual machines to the first virtual machine; and

after the second virtual machine has acquired control of the physical resource, enabling the guest virtual machines to communicate with the second I/O process of the second virtual machine to access the virtual resource.