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41. 发明授权

US08402200B2 Method and apparatus for storing and restoring state of virtual machine 有权
标题翻译：用于存储和恢复虚拟机状态的方法和装置
公开(公告)号：US08402200B2
公开(公告)日：2013-03-19
申请号：US12129122
申请日：2008-05-29
申请人： Joo-young Hwang , Sang-bum Suh
发明人： Joo-young Hwang , Sang-bum Suh
IPC分类号： G06F12/00
CPC分类号： G06F9/461 , G06F9/45558 , G06F2009/45579 , G06F2009/45583
摘要： Provided is a method and apparatus for storing and restoring a state of a virtual machine on a virtual machine monitor. The method of storing a state of a second virtual machine in a predetermined storage device by a first virtual machine on a virtual machine monitor includes determining whether the state of the second virtual machine has changed, by comparing a previous state of the second virtual machine, which has already been stored in the storage device, with a current state of the second virtual machine and selectively storing the state of the second virtual machine based on a result of the determination, thereby minimizing time required to store or restore the state of the second virtual machine.
摘要翻译：提供了一种用于在虚拟机监视器上存储和恢复虚拟机的状态的方法和装置。通过虚拟机监视器上的第一虚拟机将第二虚拟机的状态存储在预定存储装置中的方法包括通过比较第二虚拟机的先前状态来确定第二虚拟机的状态是否已经改变，其已经存储在存储设备中，具有第二虚拟机的当前状态，并且基于确定的结果选择性地存储第二虚拟机的状态，从而最小化存储或恢复第二虚拟机的状态所需的时间虚拟机。

42. 发明授权

US08352694B2 Method of controlling memory access 有权
公开(公告)号：US08352694B2
公开(公告)日：2013-01-08
申请号：US12056438
申请日：2008-03-27
申请人： Sung-kwan Heo , Chan-ju Park , Sang-bum Suh , Joo-young Hwang , Jae-min Ryu
发明人： Sung-kwan Heo , Chan-ju Park , Sang-bum Suh , Joo-young Hwang , Jae-min Ryu
IPC分类号： G06F12/06
CPC分类号： G06F12/1491 , G06F12/145
摘要： Provided is a method of controlling memory access. In a system including a first layer element executed in a privileged mode having a first priority of permission to access the entire region of a memory and second and third layer elements executed in an unprivileged mode having a second priority of permission to access a partial region of the memory, the method of controlling memory access determines whether the memory is accessible for each page that is an address space unit, based on which mode a layer element currently accessing the memory is executed in between the privileged mode and the unprivileged mode; and determines whether the memory is accessible based on which one of the first, second and third layer elements corresponds to a domain currently being attempted to be accessed from among a plurality of domains of the memory. Accordingly, a memory domain allocated to a guest operating system kernel is effectively protected from an application executed in the unprivileged mode in which the guest operating system kernel is executed.

43. 发明申请

US20100312955A1 MEMORY SYSTEM AND METHOD OF MANAGING THE SAME 审中-公开
标题翻译：存储器系统及其管理方法
公开(公告)号：US20100312955A1
公开(公告)日：2010-12-09
申请号：US12756622
申请日：2010-04-08
申请人： Joo-young HWANG , Min-chan Kim
发明人： Joo-young HWANG , Min-chan Kim
IPC分类号： G06F12/00 , G06F12/10
CPC分类号： G06F12/121 , G06F12/1009 , G06F2212/205 , Y02D10/13
摘要： A memory system to manage a memory using a virtual memory is provided. The memory system may use an asymmetric memory as a swap storage of a dynamic random access memory (DRAM). The asymmetric memory may access on a byte basis, allowing a process to directly access a page swapped out to the asymmetric memory through direct mapping.
摘要翻译：提供了使用虚拟存储器来管理存储器的存储器系统。存储器系统可以使用非对称存储器作为动态随机存取存储器（DRAM）的交换存储器。非对称存储器可以以字节为基础访问，允许进程通过直接映射直接访问转换到非对称存储器的页面。

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