公开(公告)号：DE112005002360T5

公开(公告)日：2007-08-23

申请号：DE112005002360

申请日：2005-09-21

Applicant: INTEL CORP

Inventor： NEIGER GILBERT ,  BENNETT STEVEN ,  COTA-ROBLES ERIK ,  SCHOENBERG SEBASTIAN ,  HALL CLIFFORD ,  RODGERS DION ,  SMITH LAWRENCE ,  ANDERSON ANDREW ,  UHLIG RICHARD ,  KOZUCH MICHAEL ,  GLEW ANDY

IPC: G06F9/455

Abstract: In one embodiment, a method includes transitioning control to a virtual machine (VM) from a virtual machine monitor (VMM), determining that a VMM timer indicator is set to an enabling value, and identifying a VMM timer value configured by the VMM. The method further includes periodically comparing a current value of a timing source with the VMM timer value, generating an internal event if the current value of the timing source has reached the VMM timer value, and transitioning control to the VMM in response to the internal event without incurring an event handling procedure in any one of the VMM and the VM.

公开(公告)号：DE112005001666T5

公开(公告)日：2007-05-03

申请号：DE112005001666

申请日：2005-07-08

Applicant: INTEL CORP

Inventor： SUTTON JAMES ,  HALL CLIFFORD ,  BRICKELL ERNIE ,  GRAWROCK DAVID

IPC: H04L9/08 ,  H04L9/32

公开(公告)号：GB2430518A

公开(公告)日：2007-03-28

申请号：GB0700526

申请日：2005-07-08

Applicant: INTEL CORP

Inventor： BRICKELL ERNEST ,  SUTTON JAMES II ,  HALL CLIFFORD ,  GRAWROCK DAVID

IPC: G06F21/00 ,  H04L9/08

Abstract: Delivering a Direct Proof private key to a device installed in a client computer system in the field may be accomplished in a secure manner without requiring significant non-volatile storage in the device. A unique pseudo-random value is generated and stored in the device at manufacturing time. The pseudorandom value is used to generate a symmetric key for encrypting a data structure holding a Direct Proof private key and a private key digest associated with the device. The resulting encrypted data structure is stored on a removable storage medium (such as a CD), and distributed to the owner of the client computer system. When the device is initialized on the client computer system, the system checks if a localized encrypted data structure is present in the system. If not, the system obtains the associated encrypted data structure from the removable storage medium. The device decrypts the encrypted data structure using a symmetric key regenerated from its stored pseudo-random value to obtain the Direct Proof private key. If the private key is valid, it may be used for subsequent authentication processing by the device in the client computer system.

公开(公告)号：AU2003231237A1

公开(公告)日：2003-12-22

申请号：AU2003231237

申请日：2003-05-01

Applicant: INTEL CORP

Inventor： GRAWROCK DAVID ,  UHLIG RICHARD ,  POISNER DAVID ,  GLEW ANDREW ,  HALL CLIFFORD ,  SMITH LAWRENCE III ,  NEIGER GILBERT ,  KOZUCH MICHAEL ,  GEORGE ROBERT ,  BURGESS BRADLEY ,  SUTTON JAMES II

IPC: G06F1/00 ,  G06F9/46 ,  G06F12/14 ,  G06F21/00 ,  G06F9/40

Abstract: Techniques for handling certain virtualization events occurring within a virtual machine environment. More particularly, at least one embodiment of the invention pertains to handling events related to the sub-operating system mode using a dedicated virtual machine monitor (VMM) called the system management mode VMM (SVMM), which exists in a separate portion of memory from a main virtual machine monitor (MVMM) used to handle virtualization events other than those related to the sub-operating system mode. In at least one embodiment, a technique for initializing and managing transitions to and from the SVMM is disclosed.