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Some NVDIMMs, like the ones defined by the NVDIMM_FAMILY_INTEL command set, expose a security capability to lock the DIMMs at poweroff and require a passphrase to unlock them. The security model is derived from ATA security. In anticipation of other DIMMs implementing a similar scheme, and to abstract the core security implementation away from the device-specific details, introduce nvdimm_security_ops. Initially only a status retrieval operation, ->state(), is defined, along with the base infrastructure and definitions for future operations. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Co-developed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
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