Intel Corporation

Boaz Ouriel

Konstantin Levit-Gurevich

Shay Gueron

Israel Hirsh

Machine-readable media, methods, apparatus and system for booting a processing system are described. In an embodiment, whether to launch an open operating system or a closed operating system to boot a processing system may be determined. A key may be retrieved from a processor register of the processing system and used to decrypt an encrypted version of the closed operating system based at least in part on a determination of booting the processing system with the closed operating system. In another embodiment, the processor register stored with the key may be flushed based at least in part on a determination of booting the processing system with the open operating system.

Method and apparatus for booting a processing system

Methods and apparatus for virtualization of guest operating systems (OSs) include allocating virtual machines (VMs). The VMs are assigned to each of the available hardware threads and resumed or launched for the first time. If scheduling of additional VMs is required upon exiting the VM context, another VM is selected and assigned to the hardware thread to be resumed or launched. A VM monitor is used to resume or launch a VM while the host operating system is prevented from controlling the hardware thread. A VM context structure is loaded. The thread is set to the state of the guest OS and the VM context is resumed or launched. The state of the guest OS is saved locally during a context switch to the context of the VM monitor. The VM context structure is then cleared and the host OS is allowed to control the hardware thread again.

Method and apparatus for multithreaded guest operating system execution through a multithreaded host virtual machine monitor

Briefly, some embodiments of the invention may provide devices, systems and methods of memory mapping for one or more virtual machines. For example, a method in accordance with an embodiment of the invention may include mapping a memory area as a first category in relation to a first address space used by a virtual machine and as a second category in relation to a second address space used by a virtual machine monitor.

Growing community of inventors

Zichron Ya'acov, Israel

Boaz Ouriel