Invention Grant
- Patent Title: Supporting oversubscription of guest enclave memory pages
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Application No.: US15282300Application Date: 2016-09-30
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Publication No.: US10324862B2Publication Date: 2019-06-18
- Inventor: Rebekah M. Leslie-Hurd , Francis X. McKeen , Carlos V. Rozas , Gilbert Neiger , Asit K. Mallick , Ittai Anati , Ilya Alexandrovich , Vedvyas Shanbhogue , Somnath Chakrabarti
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Lowenstein Sandler LLP
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F12/12 ; G06F12/0875 ; G06F9/455

Abstract:
Implementations of the disclosure provide for supporting oversubscription of guest enclave memory pages. In one implementation, a processing device comprising a memory controller unit to access a secure enclave and a processor core, operatively coupled to the memory controller unit. The processing device is to identify a target memory page in memory. The target memory page is associated with a secure enclave of a virtual machine (VM). A data structure comprising context information corresponding to the target memory page is received. A state of the target memory page is determined based on the received data structure. The state indicating whether the target memory page is associated with at least one of: a child memory page or a parent memory page of the VM. Thereupon, an instruction to evict the target memory page from the secure enclave is generated based on the determined state.
Public/Granted literature
- US20180095894A1 SUPPORTING OVERSUBSCRIPTION OF GUEST ENCLAVE MEMORY PAGES Public/Granted day:2018-04-05
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