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| author |  Davidlohr Bueso <dave@stgolabs.net>
| 2023-06-12 11:10:33 -0700 |
|---|---|---|
| committer |  Dan Williams <dan.j.williams@intel.com>
| 2023-06-25 14:54:51 -0700 |
| commit | 9968c9dd568e83f57fdc1f6127f8b369a0594991 (patch) | |
| tree | f36542a860c24868caeeffa6995f70ad113476d1 /drivers/cxl/security.c | |
| parent | cxl/mbox: Allow for IRQ_NONE case in the isr (diff) | |
| download | linux-9968c9dd568e83f57fdc1f6127f8b369a0594991.tar.gz linux-9968c9dd568e83f57fdc1f6127f8b369a0594991.tar.bz2 linux-9968c9dd568e83f57fdc1f6127f8b369a0594991.zip | |
cxl/mem: Introduce security state sysfs file
Add a read-only sysfs file to display the security state
of a device (currently only pmem):
/sys/bus/cxl/devices/memX/security/state
This introduces a cxl_security_state structure that is
to be the placeholder for common CXL security features.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20230612181038.14421-3-dave@stgolabs.net
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl/security.c')
| -rw-r--r-- | drivers/cxl/security.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/cxl/security.c b/drivers/cxl/security.c index 4ad4bda2d18e..9da6785dfd31 100644 --- a/drivers/cxl/security.c +++ b/drivers/cxl/security.c @@ -34,6 +34,9 @@ static unsigned long cxl_pmem_get_security_flags(struct nvdimm *nvdimm, return 0; sec_out = le32_to_cpu(out.flags); + /* cache security state */ + cxlds->security.state = sec_out; + if (ptype == NVDIMM_MASTER) { if (sec_out & CXL_PMEM_SEC_STATE_MASTER_PASS_SET) set_bit(NVDIMM_SECURITY_UNLOCKED, &security_flags); |