公开(公告)号：US20210089466A1

公开(公告)日：2021-03-25

申请号：US16986169

申请日：2020-08-05

Applicant: INTEL CORPORATION

Inventor： Vedvyas SHANBHOGUE ,  Ravi SAHITA ,  Rajesh SANKARAN ,  Siddhartha CHHABRA ,  Abhishek BASAK ,  Krystof ZMUDZINSKI ,  Rupin VAKHARWALA

IPC: G06F12/1009 ,  G06F12/14 ,  G06F9/30 ,  G06F9/455 ,  G06F21/57 ,  G06F21/53

Abstract: Examples include an apparatus which accesses secure pages in a trust domain using secure lookups in first and second sets of page tables. For example, one embodiment of the processor comprises: a decoder to decode a plurality of instructions including instructions related to a trusted domain; execution circuitry to execute a first one or more of the instructions to establish a first trusted domain using a first trusted domain key, the trusted domain key to be used to encrypt memory pages within the first trusted domain; and the execution circuitry to execute a second one or more of the instructions to associate a first process address space identifier (PASID) with the first trusted domain, the first PASID to uniquely identify a first execution context associated with the first trusted domain.