Modifizierung von Speicherberechtigungen in einer sicheren Verarbeitungsumgebung

Details

Veröffentlichungs-Nr.

EP2889777

Aktenzeichen

EP14193950

Anmeldetag

19. November 2014

Veröffentlichung

26. Dezember 2018

Erteilung

26. Dezember 2018

Rechtsraum

EP

IPC

G06F12/14G06F12/0875G06F9/30G06F21/72G06F21/60

Abstract

Embodiments of an invention for modifying memory permissions in a secure processing environment are disclosed. In one embodiment, a processor (200) includes an instruction unit (214, 224) and an execution unit (270, 280). The instruction unit is to receive an instruction to modify access permissions for a page in a secure enclave. The execution unit is to execute the instruction. Execution of the instruction includes setting new access permissions in an enclave page cache map entry (240). Furthermore, the page is immediately accessible from inside the secure enclave according to the new access permissions.

Anmelder

Firmen

Intel Corporation
Intel IP Corporation

Land

🇺🇸 USA

Fachgebiete