公开(公告)号：US20230195652A1

公开(公告)日：2023-06-22

申请号：US17554190

申请日：2021-12-17

Applicant: Intel Corporation

Inventor： Dror CASPI ,  Ravi SAHITA ,  Kunal MEHTA ,  Tin-Cheung KUNG ,  Hormuzd KHOSRAVI

IPC: G06F12/14 ,  G06F12/06 ,  G06F9/455

CPC classification number: G06F12/1408 ,  G06F12/0646 ,  G06F9/45558 ,  G06F2212/1052 ,  G06F2009/45583

Abstract: Methods and apparatus to set guest physical address mapping attributes for a trusted domain In one embodiment, the method includes executing a first one or more of instructions to establish a trusted domain and executing a second one or more of the instructions to add a first memory page to the trusted domain, where the first memory page is private to the trusted domain and a first set of page attributes is set for the first memory page based on the second one or more of the instructions, where the first set of page attributes indicates how the first memory page is mapped in a secure extended page table. The method further includes storing the first set of page attributes for the first memory page in the secure extended page table at a storage location responsive to executing the second one or more of the instructions.