摘要:
The present invention is a system for and method of initializing multiple virtual processors in a virtual machine (VM) environment. The method of initializing multiple virtual processors includes the steps of the host creating a multiple processor VM and activating a “starter virtual processor,” the “starter virtual processor” issuing a startup command to a next virtual processor, the virtual machine monitor (VMM) giving the target virtual processor the highest priority for accessing the hardware resources, the VMM forcing the “starter virtual processor” to relinquish control of the hardware resources, the VMM handing control of the hardware resources to the target virtual processor, the target virtual processor executing and completing its startup routine, the VMM forcing the target virtual processor to relinquish control of the hardware resources, and the VMM handing control of the hardware resources back to the “starter virtual processor” for activating subsequent virtual processors.
摘要:
The present invention is a system and method that performs disk migration in a virtual machine environment. The present invention quickly and easily migrates a virtual machine from one host to another thus improving flexibility and efficiency in a virtual machine environment for “load balancing” systems, performing hardware or software upgrades, handling disaster recovery, and so on. Certain of the embodiments are specifically directed to providing a mechanism for migrating the disk state along with the device and memory states, where the disk data resides in a remotely located storage device that is common to multiple host computer systems in a virtual machine environment. The virtual machine migration process, which includes disk data migration, occurs without the user's awareness and, therefore, without the user's experiencing any noticeable interruption.
摘要:
The present invention is a system for and method of providing instruction sequence compounding by (1) the virtual machine monitor's (VMM) looking ahead when an initial trap (exception) event occurs and recognizing traps within successive nearby instructions, combining and virtually executing the effects of multiple instructions while remaining inside the VMM's trap handler, and thereby minimizing the number of individual traps that would otherwise occur at each instruction and/or (2) the VMM's looking ahead when an initial context switch event occurs and recognizing context switches within successive nearby instructions, virtually combining the effects of multiple instructions and handing off this combined instruction to the host operating system, and thereby minimizing the number of individual context switches that would otherwise occur at each instruction. As a result, the number of processor cycles is reduced for exception handling and context switching in a virtual machine environment.
摘要:
Certain embodiments of the present invention are directed to a system for and method of providing seamless software compatibility by using virtual machines to provide an improved, more seamless method of user interaction with one or more virtual machines (VMs) that are resident on a host computer system. Several embodiments of the present invention provide a means in the host environment for directly invoking one or more guest operating system (OS) applications or files and displaying them in the host environment, rather than in a separate VM window. Furthermore, each embodiment of the present invention allows the possibility of multiple applications on multiple OSs (i.e., legacy or modern OSs), respectively, to run simultaneously and with the appearance of running seamlessly in the host environment.
摘要:
The present invention includes systems for and methods of implementing an operating system that is capable of ascertaining whether it is operating in a virtual machine environment and is further capable of modifying its behavior to operate more efficiently in a virtual machine environment. Embodiments of the present invention are directed to a system and method for providing operating systems that are aware that they are operating in a virtual machine environment and, as a result of this realization, are able to reduce some of the performance overhead associated with a virtual machine environment. The invention relaxes the illusion that a guest operating system is operating on dedicated hardware and describes ways for the guest operating system to operate more efficiently now that this illusion has been relaxed.
摘要:
The present invention includes systems for and methods of visually integrating application windows in a virtual machine environment. Embodiments of the present invention are directed to a system for and method of visually integrating application windows of host and guest operating system in a virtual machine environment in order to reduce difficulties that the users of computers experience in navigating between applications in a virtual machine environment. The present invention accomplishes this by using a composite window list in the virtual machine monitor (VMM) to manage the configuration, the focus, the geometry, the Z-order of the windows across guest and host operating systems, and the arrangement of doppelgangers (virtual application windows, in this case) in a way that allows host and guest application windows to appear integrated in a single display window.
摘要:
An exemplary method includes writing data to locations in non-volatile solid-state memory and deciding whether to move data written to one location in the memory to another location in the memory based on generation of the data and wear of the other location. Such a method may be used for non-volatile random access memory (NVRAM). Various other methods, devices, systems, etc., are also disclosed.
摘要:
The present invention includes systems for and methods of visually integrating application windows in a virtual machine environment. Embodiments of the present invention are directed to a system for and method of visually integrating application windows of host and guest operating system in a virtual machine environment in order to reduce difficulties that the users of computers experience in navigating between applications in a virtual machine environment. The present invention accomplishes this by using a composite window list in the virtual machine monitor (VMM) to manage the configuration, the focus, the geometry, the Z-order of the windows across guest and host operating systems, and the arrangement of doppelgangers (virtual application windows, in this case) in a way that allows host and guest application windows to appear integrated in a single display window.
摘要:
Virtualization of features present on a general-purpose computing device in order to expand the use of a fixed-function device, such as a game console, into a general-purpose application platform. Hardware capabilities are virtualized in order to run a general-purpose operating system on a fixed-function device that typically lacks physical implementations of those hardware capabilities. The operating system runs using the virtualized capabilities, and existing applications are run in the environment provided by the operating system. Thus, a fixed-function device can be used to run ordinary, existing application software.
摘要:
The present invention is a system for and method of initializing multiple virtual processors in a virtual machine (VM) environment. The method of initializing multiple virtual processors includes the steps of the host creating a multiple processor VM and activating a “starter virtual processor,” the “starter virtual processor” issuing a startup command to a next virtual processor, the virtual machine monitor (VMM) giving the target virtual processor the highest priority for accessing the hardware resources, the VMM forcing the “starter virtual processor” to relinquish control of the hardware resources, the VMM handing control of the hardware resources to the target virtual processor, the target virtual processor executing and completing its startup routine, the VMM forcing the target virtual processor to relinquish control of the hardware resources, and the VMM handing control of the hardware resources back to the “starter virtual processor” for activating subsequent virtual processors.