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US 7,480,790 B2Granted
Sleep state resume
AssigneeHewlett-Packard Development Company, L.P.
InventorsLouis B. Hobson, Robert Volentine
Life of this patent
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Abstract
In one embodiment a method comprises collecting device configuration information during an initialization process in a computing device, storing the device configuration in a memory buffer, and using the device configuration information to restore the computing device from a low-power mode to an operational mode.
Claims12
A method, comprising:
- collecting device configuration information during an initialization process in a computing device;
- and
- using the device configuration information to restore the computing device from a low-power mode to an operational mode,
- wherein collecting device configuration information during an initialization process in a computing device comprises:
- initiating power-on-self-test (POST) processing in a basic input/output system (BIOS);
- and
- collecting peripheral component interconnect express (PCIE) information from one or more devices connected to the computing device;
- and
- storing the PCIE information in a memory buffer managed by the BIOS;
- and
- wherein using the device configuration information to restore the computing device from a low-power mode to an operational mode comprises:
- activating a state power management feature for one or more PCI Express devices based on the stored device configuration information;
- initializing virtual channel traffic classes for said one or more PCI Express devices;
- and
- programming extended tag field assignments for said one or more PCI Express devices.
12 more elements
A computer system, comprising:
- a processor;
- a memory module including logic instructions which, when executed by the processor, configure the processor to:
- initiate a power-on-self-test (POST) processing in a basic input/output system (BIOS);
- and
- collect device configuration information including peripheral component interconnect express (PCIE) information from one or more devices connected to the computing device;
- and
- store the PCIE information in a memory buffer managed by the BIOS;
- activate a state power management feature for one or more PCI Express devices based on the said device configuration information;
- initialize virtual channel traffic classes for said one or more PCI Express devices;
- and
- program extended tag field assignments for said one or more PCI Express devices.
8 more elements
A computer program product comprising logic instructions stored on a computer-readable medium which, when executed by a computer processor, configure the processor to:
- initiate a power-on-self-test (POST) processing in a basic input/output system (BIOS);
- and
- collect device configuration information including peripheral component interconnect express (PCIE) information from one or more devices connected to the computing device;
- and
- store the PCIE information in a memory buffer managed by the BIOS;
- activate a state power management feature for one or more PCI Express devices based on the said device configuration information;
- initialize virtual channel traffic classes for said one or more PCI Express devices;
- and
- program extended tag field assignments for said one or more PCI Express devices.
6 more elements
Dependencies are inferred from the claim text.