Samsung Electronics Co., Ltd.

Georgia Tech Research Corporation

Sang-bum Suh

Sung-min Lee

Bok-deuk Jeong

Sung-kwan Heo

Joo-Young Hwang

Kyung-ah Chang

Sang-dok Mo

Byung-woan Kim

Seong-yeol Park

Jae-Min Ryu

Jae-Min Park

Jae-Wook Lee

Myung-June Jung

Geun-Sik Lim

Mikhail Pozhenko

Min-sung Jang

Chan-Ju Park

Ju-Pyung Lee

Min-Kyung Hwang

Chan-Ho Park

Jung-hyun Yoo

Yong-Ho Hwang

Xiang Song

Dushmanta Mohapatra

Min-young Sung

Kishore Ramachandran

Sung-do Moon

Myung-jae Lee

Jung-Hyun Yoo

Nam-hyun Yun

Minsung Jang

Hyun-Ku Jeong

Bo-Seok Moon

Jae Min Ryu

Kim Byung-Woan

Lee Jae-Wook

A virtual environment system and a method of operating the same are provided. The virtual environment system includes a virtual operating system (OS) unit to operate a virtual OS installed in a mobile storage medium in a host OS installed in a host computer, to attach a virtual resource included in the virtual OS to the host OS, and to perform arbitration so that a virtual process operated in the virtual OS uses the virtual resource. The system includes a user interface unit to provide a virtual desktop screen to allow a user to use the virtual process in the virtual environment provided by the virtual OS.

Method for operating a mobile virtual environment upon connection to a host computer

An apparatus and method for providing an integrated user interface for a variety of operating systems are provided. When a user request execution of an application included in a second operating system an application of a first operating system is in the foreground of a display, the apparatus switches the application included in the second operating system to the foreground of the display without the need for a separate window. One of a server operating system and client operating systems may be set as a main domain that provides an integrated graphic user interface with respect to applications executed on a plurality of operating systems. The operating systems not set to the main domain may be set as sub-domains each of which provides application information to the main domain in response to a request from the main domain. In response to an application execution request, the server operating system may switch an operating system in which the corresponding application is present to the foreground of the display.

Setting server operating system as main domain to provide integrated user interface for a plurality of client operating system set as sub-domains

A virtualization apparatus is provided. The virtualization apparatus includes a plurality of virtual machines (VMs), a process scheduler configured to schedule processes to be executed on the respective virtual machines, a virtual machine monitor (VMM) configured to provide each of the virtual machine with a virtualized execution environment, a virtual machine scheduler configured to schedule the virtual machines to run in the virtual machine monitor, and a synchronization unit configured to synchronize a process schedule time which is scheduled by the process scheduler and a virtual machine schedule time which is scheduled by the virtual machine scheduler, or to change the virtual machine schedule time in consideration of the process schedule time.

Real-time performance apparatus and method for controlling virtual machine scheduling in real-time

A method of intrusion detection in a terminal device that supports driving of a plurality of operating systems, is provided. The method includes collecting at a first operating system of the plurality of operating systems intrusion detection data for analyzing whether there is an intrusion in at least a second operating system of the plurality of operating systems; and performing at the first operating system an intrusion detection with respect to the at least a second operating system using the collected intrusion detection data.

Method of intrusion detection in terminal device and intrusion detecting apparatus

An apparatus and method for managing process migration are provided. When a process of a source virtual machine is to be migrated to a target virtual machine based on a process migration request, and the source virtual machine and the target virtual machine are on the same operating system (OS), logical migration is performed by updating information included in a virtual machine information database and a namespace router table.

Managing process migration from source virtual machine to target virtual machine which are on the same operating system

Provided are an apparatus and method for processing an interrupt. The apparatus includes a plurality of processing cores that are each configured to process an interrupt. The apparatus also includes an interrupt distributing unit configured to receive the interrupt, determine whether or not execution mode of each processing core is IRQ mode for exception processing or interrupt processing, and provide the received interrupt to a processing core that is not in IRQ mode.

Apparatus and method for processing an interrupt

Provided are an apparatus and method for providing services using a virtual operating system (OS). The apparatus classifies virtual resources into a plurality of mutually exclusive regions and manages the virtual resources based on the provides services regions. The plurality of provides services regions include a virtual region whose resources are stored in and used on an external storage, and an overlay region whose resources refer to host resources. The apparatus uses the region information for virtual resources and a list of resources accessed for each application process to manage the virtual resources.

Apparatus and method for providing services using a virtual operating system

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.

Ordering tasks scheduled for execution based on priority and event type triggering the task, selecting schedulers for tasks using a weight table and scheduler priority

An apparatus is provided for supporting a plurality of operating systems by single hardware, wherein the plurality of operating systems include a server operating system to provide an integrated user interfaces for applications running on the plurality of operating systems, and at least one client operating system to provide a user interface for applications running on the client operating system through the server operating system under the control of the server operating system.

Apparatus and method of supporting plurality of operating systems

Provided is a memory management method, and an apparatus to perform the method, which achieves a shortened user waiting time in consideration of system performance. The method includes acquiring a deallocation unit used to deallocate an allocated memory area according to at least one attribute, and deallocating the allocated memory area using the deallocation unit.

Apparatus and method for managing memory

A method and apparatus for authorizing a host to access a portable storage device and a method and apparatus of providing information for authorizing a host to access a portable storage device. The method includes: verifying integrity of host software requesting to transmit data; determining whether the host is authorized to access the portable storage device; and determining whether the host software is authorized to access the portable storage device. Accordingly, user information may be stored on the portable storage device and moved with security.

Method and apparatus for authorizing host to access portable storage device

A method and apparatus for inputting and outputting data by using a virtualization technique are provided. The method includes generating a virtual operating system (OS) for the external device, which is connected to a host, based on OS information stored in the external device, setting a partial area of a storage of the host as virtual storage for the external device, and storing the data in the virtual storage or a memory of the external device in response to a request for inputting and outputting the data from the virtual OS.

Method and apparatus for inputting/outputting virtual operating system from removable storage device on a host using virtualization technique

A virtualization apparatus is provided. The virtualization apparatus includes a plurality of virtual machines configured to have priority levels, a memory pool configured to be shared between the plurality of virtual machines and store part of data stored in a system memory of each of the plurality of virtual machines, and a memory pool manager configured to process a memory allocation request or a data storage request regarding the memory pool in consideration of the priority levels of the plurality of virtual machines, a guaranteed memory size for each of the plurality of virtual machines, and a size of memory that can be allocated to each of the plurality of virtual machines.

Management of memory pool in virtualization environment

A virtualization apparatus and a method for controlling the same. In a method for controlling a virtualization apparatus including a plurality of domains, a sub domain transmits an input/output (IO) request for a hardware device to a main domain, and the main domain controls whether or not the IO request accesses the hardware device according to a resource needed to perform the IO request.

Virtualization apparatus and method for controlling access to hardware device by I/O request

An apparatus and method for controlling a resource utilization policy in a virtual environment are provided. The apparatus may increase network throughput by dynamically adjusting the resource utilization policies of a driver domain that can directly access a shared device, and a guest driver that cannot directly access the shared device. In addition, the apparatus may improve the efficiency of the use of CPU resources by appropriately adjusting the CPU occupancy rates of the driver and guest domains.

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Seoul, South Korea

Sang-bum Suh