公开(公告)号：US11171983B2

公开(公告)日：2021-11-09

申请号：US16024089

申请日：2018-06-29

Applicant: INTEL CORPORATION

Inventor： Vadim Sukhomlinov ,  Kshitij Doshi ,  Michael Lemay ,  Dmitry Babokin ,  Areg Melik-Adamyan

IPC: G06F12/14 ,  H04L29/06 ,  G06F9/455 ,  G06F21/57 ,  G06F21/53 ,  G06F21/62

Abstract: Embodiments are directed toward techniques to detect a first function associated with an address space initiating a call instruction to a second function in the address space, the first function to call the second function in a deprivileged mode of operation, and define accessible address ranges for segments of the address space for the second function, each segment to a have a different address range in the address space where the second function is permitted to access in the deprivileged mode of operation, Embodiments include switching to the stack associated with the second address space and the second function, and initiating execution of the second function in the deprivileged mode of operation.