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CONFIG_XEN_BLKDEV_BACKEND: Block-device backend driver

General informations

The Linux kernel configuration item CONFIG_XEN_BLKDEV_BACKEND has multiple definitions:

Block-device backend driver found in drivers/block/Kconfig

The configuration item CONFIG_XEN_BLKDEV_BACKEND:

Help text

The block-device backend driver allows the kernel to export its block devices to other guests via a high-performance shared-memory interface.

The corresponding Linux frontend driver is enabled by the XEN_BLKDEV_FRONTEND configuration option.

The backend driver attaches itself to a any block device specified in the XenBus configuration. There are no limits to what the block device as long as it has a major and minor.

If you are compiling a kernel to run in a Xen block backend driver domain (often this is domain 0) you should say Y here. To compile this driver as a module, chose M here: the module will be called xen-blkback.

Xen block-device backend driver found in drivers/block/Kconfig

The configuration item CONFIG_XEN_BLKDEV_BACKEND:

Help text

The block-device backend driver allows the kernel to export its block devices to other guests via a high-performance shared-memory interface.

The corresponding Linux frontend driver is enabled by the XEN_BLKDEV_FRONTEND configuration option.

The backend driver attaches itself to a any block device specified in the XenBus configuration. There are no limits to what the block device as long as it has a major and minor.

If you are compiling a kernel to run in a Xen block backend driver domain (often this is domain 0) you should say Y here. To compile this driver as a module, chose M here: the module will be called xen-blkback.

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