Virtual function boot in multi-root I/O virtualization environments to enable multiple servers to share virtual functions of a storage adapter through a MR-IOV switch
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United States of America Patent
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Sep 15, 2015
Grant Date -
Apr 26, 2012
app pub date -
Oct 6, 2011
filing date -
Oct 26, 2010
priority date (Note) -
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Abstract
A method for virtual function boot in a system including a single-root I/O virtualization (SR-IOV) enabled server includes loading a PF driver of the PF of a storage adapter onto the server utilizing the virtual machine manager of the server; creating a plurality of virtual functions utilizing the PF driver, detecting each of the virtual functions on an interconnection bus, maintaining a boot list associated with the plurality of virtual functions, querying the storage adapter for the boot list utilizing a VMBIOS associated with the plurality of VMs, presenting the detected boot list to a VM boot manager of the VMM, and booting each of the plurality of virtual machines utilizing each of the virtual functions, wherein each VF of the plurality of VFs is assigned to a VM of the plurality of VMs via an interconnect passthrough between the VMM and the plurality of VMs.
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