Patent application number | Description | Published |
20100077250 | VIRTUALIZATION BASED HIGH AVAILABILITY CLUSTER SYSTEM AND METHOD FOR MANAGING FAILURE IN VIRTUALIZATION BASED HIGH AVAILABILITY CLUSTER SYSTEM - Provided are a virtualization based high availability cluster system and a method for managing failures in a virtualization based high availability cluster system. The high availability cluster system includes a plurality of virtual nodes, and a plurality of physical nodes each including a message generator for generating a message denoting that the virtual nodes are in a normal state and transmitting the generated message to virtual nodes in a same physical node. One of the virtual nodes not included in a first physical node among the plurality of the physical nodes takes over resources related to a service if a failure is generated in one of virtual nodes included in the first physical node | 03-25-2010 |
20100162259 | VIRTUALIZATION-BASED RESOURCE MANAGEMENT APPARATUS AND METHOD AND COMPUTING SYSTEM FOR VIRTUALIZATION-BASED RESOURCE MANAGEMENT - A computing system for virtualization-based resource management includes a plurality of physical machines, a plurality of virtual machines and a management virtual machine. The virtual machines are configured by virtualizing each of the plurality of physical machines. The management virtual machine is located at any one of the plurality physical machines. The management virtual machine monitors amounts of network resources utilized by the plurality of physical machines and time costs of the plurality of virtual machines, and performs a resource reallocation and a resource reclamation. | 06-24-2010 |
20110153308 | VIRTUALIZATION APPARATUS AND PROCESSING METHOD THEREOF - A virtualization apparatus includes: an emulation manager for searching a basic block cache for an entry with an entry point, and, if there exists no entry with the entry point in the basic block cache, requesting the identification of a basic block corresponding to the entry point; a basic block identifier for identifying the basic block by sequentially analyzing instructions of a source binary in response to a request from the emulation manager; and an instruction replacer for writing an entry of the identified basic block in an replaced instruction table, writing a branch instruction for the entry of the basic block in the source binary, and then branching to the entry point. The apparatus further includes an instruction emulator for executing an instruction of the basic block when a branch to the entry point is made. | 06-23-2011 |
20110219373 | VIRTUAL MACHINE MANAGEMENT APPARATUS AND VIRTUALIZATION METHOD FOR VIRTUALIZATION-SUPPORTING TERMINAL PLATFORM - A virtual machine management apparatus includes a first Operating System (OS) kernel for supporting a first OS that runs on a virtualization-supporting terminal platform; and a second OS kernel for supporting a second OS that runs on the terminal platform. Further, the virtual machine management apparatus includes a virtual machine configuration manager for, when an exception task is requested based on the first OS or the second OS of the terminal platform, controlling processing of the exception task in compliance with a preset policy. | 09-08-2011 |
20130054955 | OPERATING SYSTEM SWITCHING METHOD IN INFORMATION PROCESSING SYSTEM - An OS switching method for switching an OS within several seconds in an information processing system is provided. In the information processing system which includes a processor, a main memory, a nonvolatile memory, and a plurality of input/output apparatuses, an OS switcher is executed when power is applied to the information processing system. When a first OS acquires an OS switch command that indicates a switch to a second OS while the first OS is activated and running, the first OS stores identification information of the second OS and information indicating an OS switch in the nonvolatile memory, and performs STR. The OS switcher switches an OS from the first OS to the second OS after the STR is completed. Accordingly, in the system, one OS can be quickly switched to another OS within several seconds, and a previous working environment can be maintained. | 02-28-2013 |
20130117530 | APPARATUS FOR TRANSLATING VIRTUAL ADDRESS SPACE - The apparatus includes a virtual address space generation unit generating a virtual address space of a guest operating system, the guest operating system being executed in the virtual address space, and a virtual address space of a virtual machine monitor, the virtual machine monitor being executed in the virtual address space; a gateway page generation unit generating a gateway page allocated to a predetermined region of an actual memory region and mapped to the virtual address space of the guest operating system and the virtual address space of the guest machine monitor; and a memory management unit executing the gateway page to map a kernel region of the guest operating system to the predetermined region of the virtual address space of the virtual machine monitor to perform translation between the virtual address space of the guest operating system and the virtual address space of the virtual machine monitor. | 05-09-2013 |
20130326514 | METHOD AND APPARATUS FOR SUPPORTING VIRTUALIZATION OF LOADABLE MODULE - Disclosed herein is a method and apparatus for supporting virtualization. In the method, conversion of source code of a loadable module is initiated. A virtualization-sensitive instruction is searched for during the conversion of the source code. If the virtualization-sensitive instruction has been found, a virtualization-sensitive instruction table is generated based on the found virtualization-sensitive instruction. The virtualization-sensitive instruction is substituted with an instruction recognizable in a privileged mode, based on the generated virtualization-sensitive instruction table. The loadable module is loaded and executed in a kernel. Accordingly, the present invention supports virtualization, thus minimizing overhead occurring in full virtualization, and guaranteeing the high performance provided by para-virtualization without modifying a source. | 12-05-2013 |
20140310497 | METHOD AND APPARATUS FOR MEMORY MANAGEMENT - A method for memory management, include allocating an empty page of a physical memory for reference data according to execution of an application program, and mapping the empty page to a virtual memory; checking a physical address of the physical memory to which the reference data has been loaded; mapping the checked physical address to the virtual memory to which the empty page has been mapped, and mapping the reference data; and releasing allocation of the allocated physical memory when the reference data is mapped to the virtual memory. | 10-16-2014 |