International Business Machines Corporation

Hypori, Inc.

Dell Products Inc.

Advanced Micro Devices Corporation

Intelligent Waves LLC

Joel Howard Schopp

Nathan Fontenot

Michael Thomas Strosaker

Jacob Lorien Moilanen

Ryan Patrick Grimm

Jeffrey David George

Christopher J Arges

Mark Wayne VanderWiele

Manish Ahuja

George Conerly Wilson

Robert Cory Jennings, Jr

Monty Christoph Poppe

Michael T Strosker

David A Kaplan

Alfredo V Mendoza

Nathan Fortenot

Embodiments are disclosed that allow data to be sent between a Bluetooth enabled device and a virtual device associated with a corresponding physical device. In particular, embodiments of a virtual mobile device system may include one or more components for processing Bluetooth calls where these Bluetooth components may process received Bluetooth calls in a first manner in a connected state and process Bluetooth calls in a disconnected state in a second manner.

System, method and computer program product for implementing bluetooth in a virtual mobile device platform

Embodiments are disclosed that allow encrypted data to be sent between a Bluetooth enabled device and a virtual device associated with a corresponding physical device. In particular, a Bluetooth implementation on the physical device may include one or more raw interfaces to facilitate endpoint to endpoint secure Bluetooth cryptography. Using these raw interfaces, an encrypted Bluetooth channel may be established directly between the virtual device and the Bluetooth enabled device using the radio of the physical device, where data may be encrypted and decrypted at an endpoint of the Bluetooth communication channel (such as at the virtual device or the Bluetooth enabled device) and passed through a Bluetooth implementation on the physical device without any additional encryption or decryption being performed on that data.

System, method and computer program product for secure Bluetooth cryptography in a virtual mobile device platform

System, method and computer program product for secure bluetooth cryptography in a virtual mobile device platform

Systems, apparatuses, and methods for implementing hypervisor post-write notification of processor state register modifications. A write to a state register of the processor may be detected during guest execution. In response to detecting the write to the state register, the processor may trigger microcode to perform the write and copy the new value of the register to a memory location prior to exiting the guest. The hypervisor may be notified of the update to the state register after it occurs, and the hypervisor may be prevented from modifying the value of the guest's state register. The hypervisor may terminate the guest if the update to the state register is unacceptable. Alternatively, the hypervisor may recommend an alternate value to the guest. If the guest agrees, the guest may set the state register to the alternate value recommended by the hypervisor when the guest resumes operation.

Hypervisor post-write notification of control and debug register updates

Embodiments are disclosed that allow data to be sent between a BLUETOOTH&#xae; enabled device and a virtual device associated with a corresponding physical device. In particular, embodiments of a virtual mobile device system may include one or more components for processing BLUETOOTH&#xae; calls where these components may process received BLUETOOTH&#xae; calls in a first manner in a connected state and process BLUETOOTH&#xae; calls in a disconnected state in a second manner.

System, method and computer program product for implementing Bluetooth in a virtual mobile device platform

Embodiments relate to a virtualized storage environment with one or more virtual machines operating on a host and sharing host resources. Each virtual machine has a virtual disk in communication with a persistent storage device. The virtual machine(s) may be misaligned with the persistent storage device so that a virtual block address does not correspond with a persistent storage block address. A relationship between the virtual disk(s) and the persistent storage device is established, and more specifically, an alignment delta between the devices is established. The delta is employed to translate the virtual address to the persistent address so that the virtual and persistent storage blocks are aligned to satisfy a read or write operation.

Virtual disk alignment access

According to one embodiment of the present disclosure, an approach is provided in which a processor selects a page of data that is compressed by a first compression algorithm and stored in a memory block. The processor identifies a utilization amount of the compressed page of data and determines whether the utilization amount meets a utilization threshold. When the utilization amount fails to meet the utilization threshold, the processor uses a second compression algorithm to recompresses the page of data.

Multi-level memory compression

A method, system, and computer program product for managing system resources within a data processing system. A resource management moderator (RMM) utility assigns a priority to each application within a group of management applications, facilitated by a RMM protocol. When a request for control of a particular resource is received, the RMM utility compares the priority of the requesting application with the priority of the controlling application. Control of the resource is ultimately given to the management application with the greater priority. If the resource is not under control of an application, control of the resource may be automatically granted to the requester. Additionally, the RMM utility provides support for legacy applications via a 'manager of managers' application. The RMM utility registers the 'manager of managers' application with the protocol and enables interactions (to reconfigure and enable legacy applications) between the &#x201c;manager of managers&#x201d; application and legacy applications.

System resource management moderator protocol

A method for resetting of memory locks in a transactional memory system. The method includes a processor setting at least one new memory lock during execution of a transaction that acquires access to a region of memory. The new memory lock indicates that the transaction and its associated thread have exclusive temporary access to the memory region. The method further includes determining if a first in first out (FIFO) memory lock register is full of memory locks and, in response to the FIFO memory lock register being full, a memory lock is removed from a tail position of the FIFO memory lock register. The removed memory lock is reset to return to a transactional memory state and the new memory lock is added to a head position in the FIFO memory lock register.

Resetting memory locks in a transactional memory system

A method, system, and computer program product for the prioritization of code execution. The method includes accessing a thread in a context containing a set of code instances stored in memory; identifying sections of the set of code instances that correspond to deferrable code tasks; executing the thread in the context; determining that the thread is idle; and executing at least one of the deferrable code tasks. The deferrable code task is executed within the context and in response to determining that the thread is idle.

Post-return asynchronous code execution

A system and computer program product for resetting of memory locks in a transactional memory system. The system includes a processor setting at least one new memory lock during execution of a transaction that acquires access to a region of memory. The new memory lock indicates that the transaction and its associated thread have exclusive temporary access to the memory region. The system further includes the processor determining if a first in first out (FIFO) memory lock register is full of memory locks and, in response to the FIFO memory lock register being full, a memory lock is removed from a tail position of the FIFO memory lock register. The removed memory lock is reset to return to a transactional memory state and the new memory lock is added to a head position in the FIFO memory lock register.

Each time a currently scheduled virtual machine (VM) accesses a hardware resource over a bus for the hardware resource via the currently scheduled VM running on a processor, a hardware component adjusts a bandwidth counter associated with usage of the bus for the hardware resource, without involvement of the currently scheduled VM or a hypervisor managing the currently scheduled VM. Responsive to the bandwidth counter reaching a threshold value, the hardware component issues an interrupt for handling by the hypervisor to maintain bandwidth quality-of-service (QoS) of bus bandwidth related to the hardware resource. Upon expiration of a regular time interval prior to the bandwidth counter reaching the threshold value, the hardware component resets the bandwidth counter to a predetermined value associated with the currently scheduled VM, without involvement of the currently scheduled VM or the hypervisor; the hardware component does not issue an interrupt. The hardware resource can be memory.

Maintaining hardware resource bandwidth quality-of-service via hardware counter

An approach is provided in which a computer system generates a current hash value of a computer program in response to receiving a request to execute the computer program. Next, the computer system determines that the current hash value fails to match a reference hash value that was previously generated subsequent to installing the computer program on the computer system. Since the two hash values do not match each other, the computer system matches the current hash value to an updated hash value that was previously generated in response to modifying the computer program on the computer system. In turn, the computer system executes the computer program when the current hash value matches the updated hash value.

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Austin, TX, United States of America

Joel Howard Schopp