Abstract:
본 발명은 가상화를 하드웨어적으로 지원하는 소형 단말 플랫폼을 위한 경량 가상 머신 관리 장치에 대한 것이다. 각 프로세서마다 가상화를 지원하는 정도에는 차이가 있지만 가상 CPU 기능 이상을 갖춘 플랫폼에서는 이를 최대한 활용하는 것이 소프웨어적으로만 구현된 가상 머신 모니터에 비해 성능상 효율적이다. 또한 최소한 1개의 OS에 대해 소스 수정 없이 게스트로 동작하도록 하여, 유지 보수 비용 및 Time-to-Market을 줄일 수 있다. 본 발명에서 제시하는 가상 머신 관리 장치는 시스템 구성 단계에서 전체 시스템 성격에 따라 타겟 플랫폼이 제공하는 가상화 지원 하드웨어 기능을 최대한 활용하도록 구성하여, 해당 플랫폼에서 제공하는 가상 CPU 수만큼의 게스트 운영체제에 대해 성능을 최적화하고 가상머신 관리 장치의 크기로 최소화한다.
Abstract:
PURPOSE: A virtual address space switch device is provided to reduce memory usage and to improve the performance of a virtual machine by not mapping a page table of a VMM(Virtual Machine Monitor) with a virtual address space of a guest OS. CONSTITUTION: A guest OS(131) is executed in a virtual address space of the guest OS, and a VMM(120) is executed in a virtual address space of the VMM. A gateway page is allocated to a set area of an actual memory area and mapped with the virtual address spaces of the guest OS and the VMM. A memory management unit switches the virtual address spaces of the guest OS and the VMM by mapping a kernel area of the guest OS with a set area of the virtual address space of the VMM. [Reference numerals] (110) Hardware; (120) Virtual machine monitor(VMM); (130) Virtual machine(VM); (131) Guest operating system; (AA) Memory management unit; (BB) Memory
Abstract:
PURPOSE: A virtualization apparatus and a processing method thereof are provided to minimize a memory usage due to virtualization by minimizing the size of a basic block and proceeding VIP(Virtualization In Place) based on source binary transformation through a basic block cache. CONSTITUTION: If the entry of an entry address does not exists in a basic block cache, an emulation manager(402) requests the identification of a basic block corresponding to the entry address. A basic block identifying unit(406) successively interprets an instruction of a source binary and identifies the basic block. An instruction replacer(410) inputs a branch instruction about the entry of the basic block in the source binary and branches to the entry address. If the entry address is branched, an instruction emulator(414) executes the instruction of the basic block.
Abstract translation:目的:提供一种虚拟化设备及其处理方法,以通过基于基本块高速缓存的源二进制变换来最小化基本块的大小和进行VIP(Virtualization In Place)来最小化由虚拟化引起的存储器使用。 构成:如果基本块高速缓存中不存在条目地址的条目,则仿真管理器(402)请求对应于入口地址的基本块的标识。 基本块识别单元(406)连续解释源二进制的指令并识别基本块。 指令替换器(410)输入关于源二进制中的基本块的条目的分支指令,并分支到入口地址。 如果入口地址被分支,则指令仿真器(414)执行基本块的指令。
Abstract:
PURPOSE: A virtualization apparatus of an interrupt controller in a computer system and a method thereof are provided to proceed the virtualization of the interrupt controller which the correction of the part related to the interrupt controller is unnecessary in OS and to transfer the hardware interrupt to the OS through VMM. CONSTITUTION: A computer hardware(200) comprises a hardware interrupt controller(302). A VMM(Virtual Machine Monitor)(210) offers virtual computer hardware environment between the computer hardware and two OS(Operating System)s (220), and virtualizes the hardware interrupt controller. The OS controls the computer hardware by using application programs. If CPU processes the access toward the hardware interrupt controller of the OS as exception operation, the VMM transfers the access toward the hardware interrupt controller to a virtual interrupt controller(312).
Abstract:
본 발명은 가상화된 시스템을 이용하여 생성한 고가용성 클러스터 시스템 및 그 고가용성 클러스터 시스템에서 장애 관리 방법에 관한 것으로, 복수의 가상 노드들; 및 상기 복수의 가상 노드들이 정상 상태임을 알리는 메시지를 생성하여 동일한 물리 노드에 존재하는 가상 노드들에게 전달하는 메시지를 생성하여 전송하는 메시지 생성기를 포함하는 복수의 물리 노드들을 포함하되, 상기 복수의 물리 노드들 중 제 1 물리 노드에 포함된 어느 하나의 가상 노드에 장애가 발생한 경우, 상기 복수의 물리 노드들 중 제 2 물리 노드에 포함된 어느 하나의 가상 노드가 서비스에 관련된 자원을 페일오버(failover)하는 것을 특징으로 하는 고가용성 클러스터 시스템 및 이러한 고가용성 클러스터 시스템에서 장애 관리 방법을 제공한다. 가상화 시스템, 고가용성 클러스터 시스템, 가상 노드, 물리 노드
Abstract:
A secure desktop operating system using a virtual environment and a method thereof are provided to supply a desktop environment through the virtual environment, thereby stably providing a desktop environment to each user at low costs. A desktop management unit(100) performs access control of users. The desktop management unit manages virtual desktops according to right of the user. A virtual desktop pool(200) executes the virtual desktop according to right of the user. The virtual desktop pool comprises a monitoring server for guaranteeing stability.
Abstract:
A system and a method for provisioning a service in a software vending machine by utilizing a virtualized appliance for limiting transceiving a packet according to a specific condition are provided to operate a network image forming device efficiently and strengthen security of the image forming device by limiting packet transceiving according to a security level even if the packet has an available network address. A packet validity checker checks validity of a received packet. A security level checker checks a security level of the received packet in response to a check result of the packet validity checker. A controller controls task corresponding to the received packet in response to the check result of the security level checker.
Abstract:
A high-availability cluster system having a hierarchical multi-backup structure and a method for implementing high availability using the same are provided to offer an efficient availability by improving low availability and long error recovery time. A high-availability cluster system having a hierarchical multi-backup structure comprises a main node(100), a sub node(200), and backup nodes(300-1-300-N). The main node, as an active node, provides services to the nodes of a configured client membership, and outputs its own operation state information. The sub node, the backup node of the main node, receives and outputs a service provided from the main node, monitors whether a fault is generated from the main node, and outputs its own operation state information. Each of the backup nodes receives a service which is outputted through the sub node from the main node, and monitors whether a fault is generated from the sub node.