Abstract:
Technologies for assembling an execution profile of an event are disclosed. The technologies may include monitoring the event for a branch instruction, generating a callback to a security module upon execution of the branch instruction, filtering the callback according to a plurality of event identifiers, and validating a code segment associated with the branch instruction, the code segment including code executed before the branch instruction and code executed after the branch instruction.
Abstract:
Embodiments of techniques and systems for increasing efficiencies in computing systems using virtual memory are described. In embodiments, instructions which are located in two memory pages in a virtual memory system, such that one of the pages does not permit execution of the instructions located therein, are identified and then executed under temporary permissions that permit execution of the identified instructions. In various embodiments, the temporary permissions may come from modified virtual memory page tables, temporary virtual memory page tables which allow for execution, and/or emulators which have root access. In embodiments, per-core virtual memory page tables may be provided to allow two cores of a computer processor to operate in accordance with different memory access permissions. In embodiments, a physical page permission table may be utilized to provide for maintenance and tracking of per-physical-page memory access permissions. Other embodiments may be described and claimed.