diff options
Diffstat (limited to 'drivers/acpi/nfit/intel.c')
| -rw-r--r-- | drivers/acpi/nfit/intel.c | 53 |
1 files changed, 36 insertions, 17 deletions
diff --git a/drivers/acpi/nfit/intel.c b/drivers/acpi/nfit/intel.c index 82e805d4458a..850b2927b4e7 100644 --- a/drivers/acpi/nfit/intel.c +++ b/drivers/acpi/nfit/intel.c @@ -7,7 +7,8 @@ #include "intel.h" #include "nfit.h" -static enum nvdimm_security_state intel_security_state(struct nvdimm *nvdimm) +static enum nvdimm_security_state intel_security_state(struct nvdimm *nvdimm, + enum nvdimm_passphrase_type ptype) { struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm); struct { @@ -33,7 +34,7 @@ static enum nvdimm_security_state intel_security_state(struct nvdimm *nvdimm) * The DSM spec states that the security state is indeterminate * until the overwrite DSM completes. */ - if (nvdimm_in_overwrite(nvdimm)) + if (nvdimm_in_overwrite(nvdimm) && ptype == NVDIMM_USER) return NVDIMM_SECURITY_OVERWRITE; rc = nvdimm_ctl(nvdimm, ND_CMD_CALL, &nd_cmd, sizeof(nd_cmd), NULL); @@ -43,17 +44,28 @@ static enum nvdimm_security_state intel_security_state(struct nvdimm *nvdimm) return -EIO; /* check and see if security is enabled and locked */ - if (nd_cmd.cmd.state & ND_INTEL_SEC_STATE_UNSUPPORTED) - return -ENXIO; - else if (nd_cmd.cmd.state & ND_INTEL_SEC_STATE_ENABLED) { - if (nd_cmd.cmd.state & ND_INTEL_SEC_STATE_LOCKED) - return NVDIMM_SECURITY_LOCKED; - else if (nd_cmd.cmd.state & ND_INTEL_SEC_STATE_FROZEN || - nd_cmd.cmd.state & ND_INTEL_SEC_STATE_PLIMIT) - return NVDIMM_SECURITY_FROZEN; - else + if (ptype == NVDIMM_MASTER) { + if (nd_cmd.cmd.extended_state & ND_INTEL_SEC_ESTATE_ENABLED) return NVDIMM_SECURITY_UNLOCKED; + else if (nd_cmd.cmd.extended_state & + ND_INTEL_SEC_ESTATE_PLIMIT) + return NVDIMM_SECURITY_FROZEN; + } else { + if (nd_cmd.cmd.state & ND_INTEL_SEC_STATE_UNSUPPORTED) + return -ENXIO; + else if (nd_cmd.cmd.state & ND_INTEL_SEC_STATE_ENABLED) { + if (nd_cmd.cmd.state & ND_INTEL_SEC_STATE_LOCKED) + return NVDIMM_SECURITY_LOCKED; + else if (nd_cmd.cmd.state & ND_INTEL_SEC_STATE_FROZEN + || nd_cmd.cmd.state & + ND_INTEL_SEC_STATE_PLIMIT) + return NVDIMM_SECURITY_FROZEN; + else + return NVDIMM_SECURITY_UNLOCKED; + } } + + /* this should cover master security disabled as well */ return NVDIMM_SECURITY_DISABLED; } @@ -86,24 +98,28 @@ static int intel_security_freeze(struct nvdimm *nvdimm) static int intel_security_change_key(struct nvdimm *nvdimm, const struct nvdimm_key_data *old_data, - const struct nvdimm_key_data *new_data) + const struct nvdimm_key_data *new_data, + enum nvdimm_passphrase_type ptype) { struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm); + unsigned int cmd = ptype == NVDIMM_MASTER ? + NVDIMM_INTEL_SET_MASTER_PASSPHRASE : + NVDIMM_INTEL_SET_PASSPHRASE; struct { struct nd_cmd_pkg pkg; struct nd_intel_set_passphrase cmd; } nd_cmd = { .pkg = { - .nd_command = NVDIMM_INTEL_SET_PASSPHRASE, .nd_family = NVDIMM_FAMILY_INTEL, .nd_size_in = ND_INTEL_PASSPHRASE_SIZE * 2, .nd_size_out = ND_INTEL_STATUS_SIZE, .nd_fw_size = ND_INTEL_STATUS_SIZE, + .nd_command = cmd, }, }; int rc; - if (!test_bit(NVDIMM_INTEL_SET_PASSPHRASE, &nfit_mem->dsm_mask)) + if (!test_bit(cmd, &nfit_mem->dsm_mask)) return -ENOTTY; if (old_data) @@ -212,10 +228,13 @@ static int intel_security_disable(struct nvdimm *nvdimm, } static int intel_security_erase(struct nvdimm *nvdimm, - const struct nvdimm_key_data *key) + const struct nvdimm_key_data *key, + enum nvdimm_passphrase_type ptype) { int rc; struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm); + unsigned int cmd = ptype == NVDIMM_MASTER ? + NVDIMM_INTEL_MASTER_SECURE_ERASE : NVDIMM_INTEL_SECURE_ERASE; struct { struct nd_cmd_pkg pkg; struct nd_intel_secure_erase cmd; @@ -225,11 +244,11 @@ static int intel_security_erase(struct nvdimm *nvdimm, .nd_size_in = ND_INTEL_PASSPHRASE_SIZE, .nd_size_out = ND_INTEL_STATUS_SIZE, .nd_fw_size = ND_INTEL_STATUS_SIZE, - .nd_command = NVDIMM_INTEL_SECURE_ERASE, + .nd_command = cmd, }, }; - if (!test_bit(NVDIMM_INTEL_SECURE_ERASE, &nfit_mem->dsm_mask)) + if (!test_bit(cmd, &nfit_mem->dsm_mask)) return -ENOTTY; /* flush all cache before we erase DIMM */ |