公开(公告)号：US20110225583A1

公开(公告)日：2011-09-15

申请号：US13045698

申请日：2011-03-11

申请人： Sang-Bum SUH ,  Jae-Min Ryu

发明人： Sang-Bum SUH ,  Jae-Min Ryu

IPC分类号： G06F9/455 ,  G06F9/46

CPC分类号： G06F9/4887 ,  G06F9/4843 ,  G06F9/4881

摘要： A virtual machine monitor and a scheduling method thereof is provided. The virtual machine monitor may operate at least two domains. The virtual machine monitor may include at least one run queue and a plurality of schedulers, at least two of the plurality of schedulers comprising different scheduling characteristics. The virtual machine monitor may insert a task received from the domain into the run queue and may select a scheduler for scheduling the task, which may be inserted into the run queue, from the schedulers, according to an event type.

摘要翻译： 提供了虚拟机监视器及其调度方法。 虚拟机监视器可以操作至少两个域。 所述虚拟机监视器可以包括至少一个运行队列和多个调度器，所述多个调度器中的至少两个调度器包括不同的调度特性。 虚拟机监视器可以将从域接收到的任务插入到运行队列中，并且可以根据事件类型从调度器中选择一个调度器来调度可以插入到运行队列中的任务。

公开(公告)号：US20100299513A1

公开(公告)日：2010-11-25

申请号：US12771203

申请日：2010-04-30

申请人： Seung-woo RYU ,  Jae-min Ryu ,  Chul Lee

发明人： Seung-woo RYU ,  Jae-min Ryu ,  Chul Lee

IPC分类号： G06F15/177 ,  G06F12/02 ,  G06F12/00

CPC分类号： G06F3/0679 ,  G06F11/1441 ,  G06F13/1694

摘要： A memory apparatus and an operation of the memory apparatus which allow quick booting are provided. The memory apparatus includes a volatile memory, a non-volatile memory, and a memory control unit to control input/output of data stored in the volatile memory and the non-volatile memory. The memory control unit restores data, according to a control command input from outside of the memory apparatus, from the non-volatile memory to the volatile memory in an on-demand fashion during booting.

摘要翻译： 提供了允许快速启动的存储装置和存储装置的操作。 存储装置包括易失性存储器，非易失性存储器和存储器控制单元，用于控制存储在易失性存储器和非易失性存储器中的数据的输入/输出。 存储器控制单元根据从存储装置外部输入的控制命令，在引导期间按照需要将数据从非易失性存储器恢复到易失性存储器。

公开(公告)号：US20080244206A1

公开(公告)日：2008-10-02

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： G06F12/14

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.

摘要翻译： 提供了一种控制存储器访问的方法。 在包括以具有访问存储器的整个区域的权限的第一优先权的特权模式执行的第一层元素的系统中，以非权限模式执行的第二和第三层元素，其具有访问第 存储器，控制存储器访问的方法确定对于作为地址空间单元的每个页面，存储器是否可访问，基于哪种模式，当前访问存储器的层元素在特权模式和非特权模式之间执行; 并且基于所述第一，第二和第三层元素中的哪个元素对应于当前正在尝试从所述存储器的多个域中被访问的域来确定所述存储器是否可访问。 因此，分配给客户操作系统内核的存储器域被有效地保护在执行客户操作系统内核的非特权模式下执行的应用程序。

公开(公告)号：US20080235474A1

公开(公告)日：2008-09-25

申请号：US12053246

申请日：2008-03-21

申请人： Joo-young HWANG ,  Jae-min RYU ,  Sang-bum SUH

发明人： Joo-young HWANG ,  Jae-min RYU ,  Sang-bum SUH

IPC分类号： G06F12/12

CPC分类号： G06F12/0815 ,  G06F3/0619 ,  G06F3/0637 ,  G06F3/064 ,  G06F3/0676 ,  G06F9/526 ,  G06F12/0842 ,  G06F12/0866 ,  G06F2212/284 ,  G06F2212/311

摘要： Provided are a method and a system for processing an access to a disk block. The system receives a disk block access request from an OS domain, determines whether the OS domain is permitted to access a disk block with reference to a predetermined block table and processes disk block access of the OS domain according to the determination result. Accordingly, OS domains can share caches without having data copy through memory access control in a virtual machine monitor environment. Furthermore, a device domain controls access to a disk drive so that data corruption can be prevented.

摘要翻译： 提供了一种用于处理对磁盘块的访问的方法和系统。 系统从OS域接收磁盘块访问请求，确定OS域是否被允许参照预定的块表访问磁盘块，并根据确定结果处理OS域的磁盘块访问。 因此，OS域可以共享高速缓存，而无需通过虚拟机监视环境中的存储器访问控制进行数据复制。 此外，设备域控制对磁盘驱动器的访问，以防止数据损坏。