Abstract: Systems and methods for binary translation of executable code.

Abstract: Disclosed are systems and methods for exchanging network traffic between a client and a virtual machine running on a physical server. The described system provides a virtual network interface controller (NIC) that emulates access to a physical local area network of the physical server. The described system further includes server-side and client side components of a packet injection layer that exchanges guest network packets between the client and the virtual machine using a communication channel without injecting the guest network packets into the physical local network of the server.

Abstract: Systems and methods for processing virtual machine I/O requests by virtualization extension modules. An example method comprises: receiving, by a virtual machine monitor (VMM) running on a host computer system, a request initiated by a virtual machine managed by the VMM; processing the request by a VMM extension module identified by one or more parameters of the request; invoking, by the VMM extension module, an application programming interface (API) exported by the VMM to perform an action identified by the request; and resuming execution of the virtual machine.

Abstract: A system and method is provided for performing computations on a virtual machine without a special hardware computation unit, such as a discrete graphics processing unit (GPU). The described method uses a computation module to intercept requests from a user application executing in a virtual machine on a first physical computer. The intercepted requests may include requests to configure GPU computation grids, start and finish accelerated code execution, and transfer data to and from the special computation unit. The computation module offloads accelerated code to a second physical computer having a physical special hardware unit (e.g., discrete GPU).

Abstract: Systems and methods for creating virtual machine snapshots. An example method comprises: receiving a request to create a snapshot of a virtual machine running on a host computer system; protecting from modification a plurality of virtual memory pages of the virtual machine; responsive to detecting an attempt to modify a virtual memory page of the plurality of memory pages, copying the virtual memory page to a queue residing in a random access memory (RAM) of the host computer system; making the virtual memory page writable; retrieving the virtual memory page from the queue; writing the virtual memory page to a disk of the host computer system; and responsive to exhausting the queue, completing creation of the snapshot of the virtual machine.

Abstract: A system and method is provided for controlling an operating state of a virtual processor. An exemplary method includes determining a blocked state of a guest operating system, and, upon detecting the blocked state, determining a number of interrupt events during a first time period. If the number of interrupts is less than a first threshold or even zero during a first time period, the method includes protecting memory pages from execution by the virtual processor. Moreover, the method includes detecting, during a second time period, when the processor attempts to execute protected memory pages and unprotecting these protected memory page. Then, during a third time period, the method includes monitoring execution by the processor of the unprotected memory pages and maintaining the processor in an idle state based on the number of executed unprotected memory pages during the third time period.