Patent ID: 11928495
Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. A non-transitory machine-readable storage medium comprising instructions that upon execution cause a system to:
store Advanced Configuration and Power Interface (ACPI) information that relates to corresponding virtual trusted platform module (TPM) interfaces, wherein the virtual TPM interfaces comprise control areas in a hardware controller and are associated with respective virtual machines (VMs) of a plurality of VMs, wherein the hardware controller is separate from a hypervisor of the system and is to perform TPM emulation that provides a plurality of virtual TPMs for respective security operations, wherein the plurality of virtual TPMs are invocable by commands written to the control areas, and wherein the ACPI information comprises addresses referring to the control areas in the hardware controller;
execute, on a processor resource separate from the hardware controller, the plurality of VMs; and
write, by the plurality of VMs, the commands to the respective control areas in the hardware controller using the addresses in the ACPI information to request the security operations of the plurality of virtual TPMs.