COMMUNICATION OF DEVICE PRESENCE BETWEEN BOOT ROUTINE AND OPERATING SYSTEM
First Claim
1. An apparatus comprising:
- a first processor circuit; and
a first storage communicatively coupled to the first processor circuit and arranged to store a first sequence of instructions operative on the first processor circuit to;
create a device table comprising multiple device blocks, each device block corresponding to one of multiple hardware devices accessible to the first processor circuit, the device blocks arranged in an order within the device table indicative of relative positions of the hardware devices in a hierarchy of buses and at least one bridge device of the multiple hardware devices;
enable access to the device table by an operating system; and
execute a second sequence of instructions of the operating system operative on the processor circuit to access the device table.
1 Assignment
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Accused Products
Abstract
Various embodiments are directed to creating multiple device blocks associated with hardware devices, arranging the device blocks in an order indicative of positions of the hardware devices in a hierarchy of buses and bridges, and enabling access to the multiple device blocks from an operating system. An apparatus comprises a processor circuit and storage storing instructions operative on the processor circuit to create a device table comprising multiple device blocks, each device block corresponding to one of multiple hardware devices accessible to the processor circuit, the device blocks arranged in an order indicative of relative positions of the hardware devices in a hierarchy of buses and at least one bridge device; enable access to the device table by an operating system; and execute a second sequence of instructions of the operating system operative on the processor circuit to access the device table. Other embodiments are described and claimed herein.
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Citations
30 Claims
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1. An apparatus comprising:
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a first processor circuit; and a first storage communicatively coupled to the first processor circuit and arranged to store a first sequence of instructions operative on the first processor circuit to; create a device table comprising multiple device blocks, each device block corresponding to one of multiple hardware devices accessible to the first processor circuit, the device blocks arranged in an order within the device table indicative of relative positions of the hardware devices in a hierarchy of buses and at least one bridge device of the multiple hardware devices; enable access to the device table by an operating system; and execute a second sequence of instructions of the operating system operative on the processor circuit to access the device table. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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a first processor circuit; and a first storage communicatively coupled to the first processor circuit and arranged to store a first sequence of instructions operative on the first processor circuit to; enable access by an operating system to a device table comprising multiple device blocks, each device block corresponding to one of multiple hardware devices accessible to the first processor circuit, the device blocks arranged in an order within the device table indicative of relative positions of the hardware devices in a hierarchy of buses and at least one bridge device of the multiple hardware devices; and execute the second sequence of instructions, the second sequence of instructions operable to access the device table. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A computer-implemented method comprising:
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creating a device table comprising multiple device blocks, each device block corresponding to one of multiple hardware devices of a computing device accessible to a first processor circuit of the computing device, the device blocks arranged in an order within the device table indicative of relative positions of the hardware devices in a hierarchy of buses and at least one bridge device of the multiple hardware devices; enabling access to the device table by an operating system; loading the operating system; and accessing the device table following loading the operating system. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. At least one machine-readable storage medium comprising a first sequence of instructions that when executed by a computing device, causes the computing device to:
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create a device table comprising multiple device blocks, each device block corresponding to one of multiple hardware devices of the computing device accessible to the first processor circuit of the computing device, the device blocks arranged in an order within the device table indicative of relative positions of the hardware devices in a hierarchy of buses and at least one bridge device of the multiple hardware devices; enable access to the device table by an operating system; and execute a second sequence of instructions of the operating system that cause the computing device to access the device table. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification