diff options
| author | Davidlohr Bueso <dave@stgolabs.net> | 2023-06-12 21:10:37 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-06-26 01:34:41 +0300 |
| commit | 180ffd338c35057c3e8521d55555ae3b36b67fa6 (patch) | |
| tree | 5fbbde3ee1b018ebaa16b52696b117763bec9d3d /drivers/cxl/cxlmem.h | |
| parent | c5c39217ff49ffb8494a671c9521c43006f87f1a (diff) | |
| download | linux-180ffd338c35057c3e8521d55555ae3b36b67fa6.tar.xz | |
cxl/mem: Support Secure Erase
Implement support for the non-pmem exclusive secure erase, per
CXL specs. Create a write-only 'security/erase' sysfs file to
perform the requested operation.
As with the sanitation this requires the device being offline
and thus no active HPA-DPA decoding.
The expectation is that userspace can use it such as:
cxl disable-memdev memX
echo 1 > /sys/bus/cxl/devices/memX/security/erase
cxl enable-memdev memX
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/20230612181038.14421-7-dave@stgolabs.net
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl/cxlmem.h')
| -rw-r--r-- | drivers/cxl/cxlmem.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index 5b84f27fc76a..78ff518012bf 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -388,6 +388,7 @@ enum cxl_opcode { CXL_MBOX_OP_SCAN_MEDIA = 0x4304, CXL_MBOX_OP_GET_SCAN_MEDIA = 0x4305, CXL_MBOX_OP_SANITIZE = 0x4400, + CXL_MBOX_OP_SECURE_ERASE = 0x4401, CXL_MBOX_OP_GET_SECURITY_STATE = 0x4500, CXL_MBOX_OP_SET_PASSPHRASE = 0x4501, CXL_MBOX_OP_DISABLE_PASSPHRASE = 0x4502, |