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8 hourskernel: Introduce disk management frameworkIan Moffett
This commit introduces the initial Hyra disk management framework. The goal of this framework is to provide a simplistic API for the management of storage devices in a way that is more suitable for complex operations. Upon detection and initialization of a block-based storage medium, the driver may create a named disk object using the 'disk_add()' function. Disks that have been registered with the system may be acquired via the 'disk_get_id()' function. As of the current revision, each disk is given a monotonically incremental ID for identification and lookups. A disk ID of zero indicates a primary disk on the system. Disks may be written to or read from using the 'disk_read()' and 'disk_write()' functions. Memory buffers used for these operations must be created with the 'disk_buf_alloc()' function and freed with the 'disk_buf_free()' function. Signed-off-by: Ian Moffett <ian@osmora.org>