Patent ID: 11874778
Assignee: ARM LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The apparatus according to claim 1, wherein said realm management operations comprise at least one of:
creating a new realm;
updating properties of an existing realm;
invalidating a realm;
allocating memory regions for ownership by a given realm;
changing the owner realm for a given memory region;
changing a state of a given memory region;
updating access control information for controlling access to a given memory region in response to a command triggered by the owner realm for the given memory region;
managing transitions between realms during processing of the one or more software processes;
managing transfer of data associated with a given realm between a memory region owned by the given realm and a memory region owned by a different realm to the given realm; and
encryption or decryption of data associated with a given realm.