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US 2010/0250792 A1Published application
Opportunistic improvement of mmio request handling based on target reporting of space requirements
AssigneeIntel Corporation
InventorsDavid J. Harriman, Andrew F. Glew
Life of this patent
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Abstract
Methods and apparatus for opportunistic improvement of Memory Mapped Input/Output (MMIO) request handling (e.g., based on target reporting of space requirements) are described. In one embodiment, logic in a processor may detect one or more bits in a message that is to be transmitted from an input/output (I/O) device. The one or more bits may indicate memory mapped I/O (MMIO) information corresponding to one or more attributes of the I/O device. Other embodiments are also disclosed.
Claims30
A processor comprising:
- a first logic to detect one or more bits in a message that is to be transmitted from an input/output (I/O) device, wherein the one or more bits are to indicate memory mapped I/O (MMIO) information corresponding to one or more attributes of the I/O device;
- a memory to store the MMIO information;
- and
- a processor core to access a MMIO region in the memory based on the MMIO information.
1 more element
A method comprising:
- receiving a message comprising one or more bits from an input/output (I/O) device, wherein the one or more bits are to indicate memory mapped I/O (MMIO) information corresponding to one or more attributes of the I/O device;
- storing the MMIO information in a memory;
- and
- accessing a MMIO region in the memory based on the MMIO information.
1 more element
A system comprising:
- an input/output (I/O) device;
- a processor comprising a first logic to detect one or more bits in a message that is to be received from the I/O device, wherein the one or more bits are to indicate memory mapped I/O (MMIO) information corresponding to one or more attributes of the I/O device;
- a memory to store the MMIO information;
- and
- the processor comprising at least one processor core to access a MMIO region in the memory based on the MMIO information.
2 more elements
Dependencies are inferred from the claim text.