Change Details

Instead of having SPA's being owned in an array and tied to the lifecycle of a geom class, `identify` them as acpi bus devices with the corresponding lifecycle management.

In the ACPI's NVDIMM model, system physical address range memory mappings (SPAs) of NVDIMMs are resources provided by an NVDIMM root device. Previously SPAs were owned by a GEOM class which also provided access to them via the GEOM framework. With this change, we model the NVDIMM root device as a device on the acpi bus. The root device owns its SPA mappings, which each in turn owns its geom. The motivation for this change was to provide a working destroy_geom method for the SPA geom class, so that the nvdimm module can be properly unloaded.

Instead of having SPA's being owned in an array and tied to theIn the ACPI's NVDIMM model, system physical address range memory lifecycle of a geom class, `identify` them as acpi bus devicesmappings (SPAs) of NVDIMMs are resources provided by an NVDIMM with the corresponding lifecycle management.root device. Previously SPAs were owned by a GEOM class which also provided access to them via the GEOM framework. With this change, we model the NVDIMM root device as a device on the acpi bus. The root device owns its SPA mappings, which each in turn owns its geom. The motivation for this change was to provide a working destroy_geom method for the SPA geom class, so that the nvdimm module can be properly unloaded.