摘要:
A system for executing a program using a virtual machine monitor and a method of controlling the system are provided. The system includes a virtual machine monitor which divides an operating system (OS) into at least one root domain and a plurality of domains having different trust levels, and a trust-management module which is included in the at least one root domain and which periodically measures the trust level of an application program currently being executed in the plurality of domains. The virtual machine monitor executes the application program in one of the domains based on the trust level of the application program.
摘要:
A system for executing a program using a virtual machine monitor and a method of controlling the system are provided. The system includes a virtual machine monitor which divides an operating system (OS) into at least one root domain and a plurality of domains having different trust levels, and a trust-management module which is included in the root domain and periodically measures the trust level of an application program currently being executed in the OS. The virtual machine monitor executes the application program in one of the domains in consideration of the trust level of the application program. The method includes dividing an OS into at least a root domain and a plurality of domains having different trust levels by using a virtual machine monitor, enabling the root domain to periodically measure the trust level of an application program currently being executed in the OS, and executing the application program in one of the domains according to the trust level of the application program.
摘要:
A method and apparatus for securely sharing content are provided, which can securely share the content without allowing access by unauthorized third parties. The method of securely sharing content includes a first domain, which has content that requires security among a plurality of domains logically generated on a hardware platform, sharing the content with at least one second domain, and if the second domain intends to write the content in a region in which writing is not permitted, preventing the writing of the content.
摘要:
Provided are a booting apparatus and method using a snapshot image. A snapshot image may be divided into a plurality of blocks. Each of the blocks may be stored in a nonvolatile memory in a compressed or non-compressed format. The snapshot image may be incrementally loaded in units of the blocks during booting. The loading and decompression of the blocks may be performed in parallel.
摘要:
Provided are a booting apparatus and method using a snapshot image. A snapshot image may be divided into a plurality of blocks. Each of the blocks may be stored in a nonvolatile memory in a compressed or non-compressed format. The snapshot image may be incrementally loaded in units of the blocks during booting. The loading and decompression of the blocks may be performed in parallel.
摘要:
Provided are a booting apparatus and method using a snapshot image. A snapshot image may be divided into a plurality of blocks. Each of the blocks may be stored in a nonvolatile memory in a compressed or non-compressed format. The snapshot image may be incrementally loaded in units of the blocks during booting. The loading and decompression of the blocks may be performed in parallel.
摘要:
A technique for reducing a size of a snapshot boot image by adjusting a structure of the snapshot boot image based on an analysis of a computing system. In addition, according to the technique, the overriding portions of a snapshot based boot image may be loaded first in consideration of a time of use of the system, and therefore a boot time can be reduced.
摘要:
A system and method are provided for protecting data information stored in a storage medium. The system includes a memory unit which is divided into a plurality of storage regions in which data information is stored; a domain unit which includes a plurality of OS domains, which are access subjects, and loads the data information stored in the storage regions that are accessed by the OS domains; and a control unit which controls access of the domain unit to the memory unit.
摘要:
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.
摘要:
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.