[-ndctl,v2,0/2] cxl: Support memdev sanitation

Message

Davidlohr Bueso July 13, 2023, 7:54 p.m. UTC

Hi,

Changes from v1 (https://lore.kernel.org/linux-cxl/[e-mail]/)
    o Added a LIBCXL_6 section for new symbols.
    o s/sanitation/sanitization
    o In patch 2's manpage documented that sanitize does not
      involve explicit CPU cacheline management.
    o s/host_path/dev_path in patch 2.

These are the cxl-tool new subcommands for device sanitation for the kernel
side equivalent (v6.5+).

Obviously the naming of the interfaces are derived from what is currently there
for ndctl. However note that the new cxl wait-sanitize and sanitize-memdev
commands do not rely on pmem security, such as ndctl_dimm_get_security().
However, the kernel does consult pmem security before sending the approving
the operation, so no harm no foul.

This code is also available at:
     https://github.com/davidlohr/ndctl/tree/cxl-memdev-sanitation-v2

Thanks!

Davidlohr Bueso (2):
  cxl/memdev: Introduce wait-sanitize functionality
  cxl/memdev: Introduce sanitize-memdev functionality

 Documentation/cxl/cxl-sanitize-memdev.txt | 68 ++++++++++++++++
 Documentation/cxl/cxl-wait-sanitize.txt   | 39 ++++++++++
 Documentation/cxl/lib/libcxl.txt          |  2 +
 Documentation/cxl/meson.build             |  2 +
 cxl/builtin.h                             |  2 +
 cxl/cxl.c                                 |  2 +
 cxl/lib/libcxl.c                          | 94 +++++++++++++++++++++++
 cxl/lib/libcxl.sym                        |  6 ++
 cxl/libcxl.h                              |  2 +
 cxl/memdev.c                              | 73 ++++++++++++++++++
 10 files changed, 290 insertions(+)
 create mode 100644 Documentation/cxl/cxl-sanitize-memdev.txt
 create mode 100644 Documentation/cxl/cxl-wait-sanitize.txt

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2.41.0