PPT-HSPT: Practical Implementation and Efficient Management of Embedded Shadow Page Tables

Efficient Management of Embedded Shadow Page Tables for CrossISA System Virtual Machines Zhe Wang 1 Jianjun Li 1 Chenggang Wu 1 Dongyan Yang 2 Zhenjiang Wang. Virtualization. . Technique. System Virtualization. Memory Virtualization. Agenda. Basic concept of memory management. Brief introduction to ARM v7 AMSA. Memory Virtualization. Shadow page table. Hardware assistance. 15-612 Operating System . Practicum. Carnegie Mellon University. Pratik . Shah (. pcshah. ). Rohan . Patil (rspatil). 1. Agenda. Introduction to VT-x. CPU virtualization with VT-x. VMX. VMX Transitions. Hadi Salimi. Distributed Systems Lab,. School of Computer Engineering,. Iran University of Science and Technology,. hsalimi@iust.ac.ir. Motivation. F. ault-tolerant . and intrusion-tolerant systems . Main Points. Applications of memory management. What can we do with ability to trap on memory references to individual pages?. File systems and persistent storage. Goals. Abstractions. Interfaces. Address Translation Uses. Memory Management. Outline. Introduction. Memory Management Basics. Android Memory Management. iOS Memory Management. 2. Goal of Memory Management. Memory management is part of an operating system which allocates memory among competing processes, maximizing memory utilization and system throughput. VM . What is a VM . V. irtual . M. achine. Software implementation of a machine running on another machine. The VM may or may not resemble the host machine. E.g.. Linux on a Windows machine. Windows on Windows. Carl Waldspurger (SB SM . ’89, . PhD . ’95), VMware . R&D. Overview. Virtualization and VMs. Processor Virtualization. Memory Virtualization. I/O Virtualization. Types. of Virtualization. Process Virtualization. An Enhanced Virtual Memory Framework to Enable Fine-grained Memory Management. Vivek Seshadri. Gennady . Pekhimenko. , . Olatunji. . Ruwase. , . Onur Mutlu, Phillip B. Gibbons, Michael A. Kozuch,. Todd C. Mowry, . Main Points. Applications of memory management. What can we do with ability to trap on memory references to individual pages?. File systems and persistent storage. Goals. Abstractions. Interfaces. Address Translation Uses. Samuel T. King, George W. Dunlap,Peter M.Chen. . Presented By,. Rajesh . 1. References. [1] . Virtual . Machines: Supporting Changing Technology and New Applications, ECE Dept. Georgia Tech., November 14, . Part . 4. Chapter 2: The Linux System. Linux History . Design Principles. Kernel Modules. Process Management. Scheduling. . Memory Management . File Systems. Input and Output . Interprocess. Communication. 13. . The Deutsch-Schiffman Smalltalk-80 Implementation. Main references. [Kras83] Glenn Krasner (Ed.). Smalltalk-80: Bits of History, Words of Advice. Addison-Wesley Longman Publishing Co., Inc., Boston, MA, USA.1983.. Outline. Introduction. Memory Management Basics. Android Memory Management. iOS Memory Management. 2. Goal of Memory Management. Memory management is part of an operating system which allocates memory among competing processes, maximizing memory utilization and system throughput. for Virtualized Systems. Jeongseob. . Ahn. , . Seongwook. Jin, and . Jaehyuk. Huh. Computer Science Department. KAIST. System Virtualization. Widely used for cloud computing as well as server consolidation.