Method and system for dynamically collocating resource for equipment in computer system

Abstract

The invention discloses a method and a system for performing dynamic resource allocation for a device in a computer system, the steps of the method comprise detecting a bus topology of the computer system, finding a previous device of the device, searching free resources which can be distributed to the previous device, allocating preset resources to the previous device in the range of the free resources, and allocating preset resources to the device in the range of the resources of the previous device. The system comprises a central processor and a PCIE-CardBus controller which is in communication with the central processor. The invention can accurately allocate the device through the method and the system, thereby enabling a next device following the device to be started and operated normally.

Description

technical field [0001] The present invention relates to a method and system for configuring resources of equipment in a computer system, in particular to a method and system for dynamically configuring resources of equipment in a computer system. Background technique [0002] In order to implement resource allocation for devices in the computer system, it is necessary to detect the hierarchical topology of all buses and devices in the computer system. Hierarchical topology establishes the physical relationship of all devices in a computer system. A device such as a bridge or a controller in a hierarchical topology is the "parent device" relative to the next-level device connected behind it, and the next-level device is relative to the upper-level device such as the bridge or controller is a "child device". Due to the hierarchical nature of resource allocation, a resource required by a device behind a bridge or controller must first be available to the bridge or controller ...

AI Technical Summary

Problems solved by technology

Since the PCIE-CardBus controller is not defined in the PCIE specification, when starting Windows, the BIOS configures the PCIE-CardBus controller according to the configuration method of the PCI-CardBus controller, but the allocated resources cannot meet the needs of the PCIE-CardBus controller.

[0008] As mentioned above, due to the hierarchical nature of resource allocation, if the PCIE-CardBus controller is located behind a PCI-to-PCI bridge, the CardBus devices connected to the PCIE-CardBus controller can only receive from the CardBus controller assigned to PCI by the operating system The default resource of -to-PCI bridge, such as in Windows XP, the default resource is 4KB of I / O space and a minimum of 1MB of Memory space, while the CardBus device requires a minimum of 4KB of Memory space, 1MB of reserved Memory space and two A 256-byte I / O space, therefore, CardBus devices cannot work

That is to say, once the resources required by the CardBus device are not within the range of the resources allocated by the PCI-to-PCI bridge and the resources allocated by the PCIE-CardBus controller, the CardBus device will not work

As mentioned above, because resources cannot be reconfigured once they are configured, Windows XP will not reconfigure resources based on the needs of the PCIE-CardBus controller behind the PCI-to-PCI bridge, which leads to even if the system has sufficient resources, However, the CardBus device behind the PCIE-CardBus controller cannot be started due to lack of resources.

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