Controlling access to namespaces of a storage device

A system comprising:

• a virtual machine;
• and
• a virtual machine manager configured to:
• receive, from the virtual machine, a request for a set of namespace identifiers corresponding to a set of namespaces associated with one or more storage devices;
• determine one or more namespaces associated with the virtual machine from the set of namespaces associated with the one or more storage devices;
• and
• in response to determining the one or more namespaces associated with the virtual machine, send, to the virtual machine, a subset of the set of namespace identifiers, the subset of namespace identifiers corresponding to the one or more namespaces associated with the virtual machine.

A non-transitory computer-readable storage medium encoded with instructions that, when executed, cause one or more processors of a host device to:

• receive, from a virtual machine, a request for a set of namespace identifiers corresponding to a set of namespaces associated with one or more storage devices;
• determine one or more namespaces associated with the virtual machine from the set of namespaces associated with the one or more storage devices;
• and
• in response to determining the one or more namespaces associated with the virtual machine, send, to the virtual machine, a subset of the set of namespace identifiers, the subset of namespace identifiers corresponding to the one or more namespaces associated with the virtual machine.