diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2018-12-05 23:39:29 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2018-12-13 17:54:13 -0800 |
| commit | f2989396553a0bd13f4b25f567a3dee3d722ce40 (patch) | |
| tree | c1790f66286bd33d40e0286349305acf71210abd /drivers/acpi/nfit/core.c | |
| parent | 9db67581b91d9e9e05c35570ac3f93872e6c84ca (diff) | |
| download | talos-op-linux-f2989396553a0bd13f4b25f567a3dee3d722ce40.tar.gz talos-op-linux-f2989396553a0bd13f4b25f567a3dee3d722ce40.zip | |
acpi/nfit, libnvdimm: Introduce nvdimm_security_ops
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>
Diffstat (limited to 'drivers/acpi/nfit/core.c')
| -rw-r--r-- | drivers/acpi/nfit/core.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 49b2665088b7..41c261ab793e 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -1930,6 +1930,16 @@ static void shutdown_dimm_notify(void *data) mutex_unlock(&acpi_desc->init_mutex); } +static const struct nvdimm_security_ops *acpi_nfit_get_security_ops(int family) +{ + switch (family) { + case NVDIMM_FAMILY_INTEL: + return intel_security_ops; + default: + return NULL; + } +} + static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc) { struct nfit_mem *nfit_mem; @@ -1999,7 +2009,8 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc) nvdimm = __nvdimm_create(acpi_desc->nvdimm_bus, nfit_mem, acpi_nfit_dimm_attribute_groups, flags, cmd_mask, flush ? flush->hint_count : 0, - nfit_mem->flush_wpq, &nfit_mem->id[0]); + nfit_mem->flush_wpq, &nfit_mem->id[0], + acpi_nfit_get_security_ops(nfit_mem->family)); if (!nvdimm) return -ENOMEM; |
