PRIVILEGE BASED MEMORY PINNING MECHANISM

摘要

A method for privilege based memory pinning is provided. The method includes receiving a request to pin an amount of address space memory from a process executing on an operating system. The operating system includes a configurable mode of operation. In mandatory mode, the operating system executes the request to pin address space memory based on the role hierarchy-based privilege level of the requestor process. When the requested amount is greater than the operating system's amount of memory that can be used to pin memory, the operating system fails the request. However, when the operating can satisfy the request from processes having a lower privilege level relative to the requestor process, memory is unpinned from one or more of these processes.

主权项

1. A method for privilege based memory pinning comprising:
receiving, by an operating system executing on a computer, a request from a requestor process executing in the operating system to pin an amount of address space memory; executing the request to pin the amount of address space memory, wherein the requestor process is privileged; rejecting the request to pin the amount of address space memory, wherein the requestor process is under-privileged; and updating one or more operating system tables of pinned memory in use based on the executed request.