摘要:
A method and apparatus for managing memory usage. Whether a file stored on a user/hardware accessible portion of a non-volatile memory device in a computing system has been accessed within a predetermined period is determined. If the file has not been accessed within the pre-determined period, the file is purged to enable the recovery of storage space in the user/hardware accessible portion of the non-volatile memory device being occupied by unused or infrequently accessed files.
摘要:
Methods, apparatus, and systems for sharing resources across a plurality of computing platforms. Firmware provided on each platform is loaded for operating system runtime availability. Shared resources are presented to operating systems running on the platforms as local resources, while in reality they are generally hosted by other platforms. An operating system resource access request is received by a requesting platform and rerouted to another platform that actually hosts a target resource used to service the resource access request. Global resource maps are employed to determine the appropriate host platforms. Communications between the platforms is enabled via an out-of-band (OOB) communication channel or network. A hidden execution mode is implemented to effectuate data rerouting via the OOB channel such that the method is performed in a manner that is transparent to operating systems running on the platforms. The shared resources include storage, input, and video devices. The method can be used to support shared KVM (keyboard, video and mouse) resources.
摘要:
A data processing system features a processor, random access memory (RAM), flash memory, a disk drive, an operating system (OS), and platform software. The platform software is capable of intercepting an attempt by the OS to read a storage location of the disk drive during a process of transitioning the data processing system from an inactive mode to an active mode. In response to intercepting the attempt by the OS to read the disk drive, the platform software may automatically determine whether the storage location for the read corresponds to a disk area reserved for power state transition data. If the storage location corresponds to the area reserved for power state transition data, the platform software may automatically read data from the flash memory instead of the disk drive, and pass that data to the OS. Other embodiments are described and claimed.
摘要:
Methods and systems for allocating address space resources to resource requesting peripheral devices in an efficient manner. Resource requests are gathered for enumerated peripheral devices host by a computer platform. A map containing resource alignment requirements is built, and a virtual resource allocation map is computed based on aggregated resource requests and the alignment requirements. The resource aggregations are, in turn, based on a hierarchy of the peripheral devices. A bin-packing algorithm is employed to determine allocation of the resource requests so as to minimize resource address space allocations. The virtual resource map is then used to perform actual resource allocations. The resources include peripheral device I/O address allocation and peripheral device memory address allocations.
摘要:
A computer system is disclosed. The computer system includes a storage device, a device controller and a chipset. The device controller includes lock registers having values that correspond to the ranges of locked sectors of the storage device. The lock registers verify if a storage device access request is targeted for ranges of sectors of the storage device that are locked. The chipset includes an embedded controller to authenticate the storage device access request and to manage configuration of the storage device.
摘要:
Systems and methods are described herein to provide for device driver isolation from a host operating system on a computing device. Other embodiments include apparatus and system for control of two or more virtual machines, each of the virtual machines isolated from all other virtual machines. Further embodiments include methods for executing an operating system wherein the device driver is isolated from the operating system. Other embodiments are described and claimed.
摘要:
Deterring output of data from a computing platform may be accomplished by launching a driver to filter write requests to selected output ports of the computing platform, receiving a write request, and denying the write request when the write request is for a selected output port identified as being in a read-only mode.
摘要:
In some embodiments, the invention involves a system and method relating to managing power utilization in partitioned systems. In at least one embodiment, the present invention is intended to control the sleeping/wakefulness of devices, as necessary, to minimize power utilization of devices whose accesses are routed away. Inter-partition communication is used to utilize devices in a sequestered partition while devices in the OS partition are put into a sleep state to save power. Other embodiments are described and claimed.
摘要:
Disclosed is a system and method to provide a firmware enabled trap-based Redundant Array of Independent Disks (RAID) implementation for disk drives. A plurality of disk drives in a RAID system are coupled to a chipset. A trap is defined in the chipset for input/output (I/O) accesses to a disk drive of the RAID system. Firmware of the chipset determines if an I/O access is to one of the disk drives of the RAID system, and if so, commands a trapping operation. During the trapping operation, the firmware processes the I/O access to an appropriate disk drive of the RAID system.
摘要:
A filter driver or other control logic automatically monitors user input events and outbound network packets in a processing system. According to one embodiment, in response to detecting an outbound network packet, the filter driver automatically determines whether the outbound network packet corresponds to a recent user input event. If the outbound network packet does not correspond to at least one recent user input event, the filter driver automatically prevents the processing system from transmitting the outbound network packet. Other embodiments are described and claimed.