From: Dave Jiang <dave.jiang@intel.com>
To: Davidlohr Bueso <dave@stgolabs.net>
Cc: linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev,
dan.j.williams@intel.com, bwidawsk@kernel.org,
ira.weiny@intel.com, vishal.l.verma@intel.com,
alison.schofield@intel.com
Subject: Re: [PATCH RFC 4/15] cxl/pmem: Add "Set Passphrase" security command support
Date: Tue, 19 Jul 2022 11:55:49 -0700 [thread overview]
Message-ID: <90b4cc78-9a27-b369-ea5e-c89d1d889fdb@intel.com> (raw)
In-Reply-To: <20220718063652.osytkh3sji3mntfn@offworld>
On 7/17/2022 11:36 PM, Davidlohr Bueso wrote:
> On Fri, 15 Jul 2022, Dave Jiang wrote:
>
>> However, the spec leaves a gap WRT master passphrase usages. The spec
>> does
>> not define any ways to retrieve the status of if the support of master
>> passphrase is available for the device, nor does the commands that
>> utilize
>> master passphrase will return a specific error that indicates master
>> passphrase is not supported. If using a device does not support master
>> passphrase and a command is issued with a master passphrase, the error
>> message returned by the device will be ambiguos.
>
> In general I think that the 2.0 spec is brief at *best* wrt to these
> topics.
> Even if a lot is redundant, there should be an explicit equivalent to the
> theory of operation found in
> https://pmem.io/documents/NVDIMM_DSM_Interface-V1.8.pdf
I totally agree.
>
> Thanks,
> Davidlohr
next prev parent reply other threads:[~2022-07-19 18:55 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-15 21:08 [PATCH RFC 00/15] Introduce security commands for CXL pmem device Dave Jiang
2022-07-15 21:08 ` [PATCH RFC 01/15] cxl/pmem: Introduce nvdimm_security_ops with ->get_flags() operation Dave Jiang
2022-07-15 21:09 ` Davidlohr Bueso
2022-08-03 16:29 ` Jonathan Cameron
2022-07-18 5:34 ` [PATCH RFC 1/15] " Davidlohr Bueso
2022-07-15 21:08 ` [PATCH RFC 02/15] tools/testing/cxl: Create context for cxl mock device Dave Jiang
2022-07-18 6:29 ` [PATCH RFC 2/15] " Davidlohr Bueso
2022-08-03 16:36 ` [PATCH RFC 02/15] " Jonathan Cameron
2022-08-09 20:30 ` Dave Jiang
2022-07-15 21:08 ` [PATCH RFC 03/15] tools/testing/cxl: Add "Get Security State" opcode support Dave Jiang
2022-08-03 16:51 ` Jonathan Cameron
2022-07-15 21:08 ` [PATCH RFC 04/15] cxl/pmem: Add "Set Passphrase" security command support Dave Jiang
2022-07-18 6:36 ` [PATCH RFC 4/15] " Davidlohr Bueso
2022-07-19 18:55 ` Dave Jiang [this message]
2022-08-03 17:01 ` [PATCH RFC 04/15] " Jonathan Cameron
2022-07-15 21:09 ` [PATCH RFC 05/15] tools/testing/cxl: Add "Set Passphrase" opcode support Dave Jiang
2022-08-03 17:15 ` Jonathan Cameron
2022-07-15 21:09 ` [PATCH RFC 06/15] cxl/pmem: Add Disable Passphrase security command support Dave Jiang
2022-08-03 17:21 ` Jonathan Cameron
2022-07-15 21:09 ` [PATCH RFC 07/15] tools/testing/cxl: Add "Disable" security opcode support Dave Jiang
2022-08-03 17:23 ` Jonathan Cameron
2022-07-15 21:09 ` [PATCH RFC 08/15] cxl/pmem: Add "Freeze Security State" security command support Dave Jiang
2022-08-03 17:23 ` Jonathan Cameron
2022-07-15 21:09 ` [PATCH RFC 09/15] tools/testing/cxl: Add "Freeze Security State" security opcode support Dave Jiang
2022-07-15 21:09 ` [PATCH RFC 10/15] x86: add an arch helper function to invalidate all cache for nvdimm Dave Jiang
2022-07-18 5:30 ` Davidlohr Bueso
2022-07-19 19:07 ` Dave Jiang
2022-08-03 17:37 ` Jonathan Cameron
2022-08-09 21:47 ` Dave Jiang
2022-08-10 14:15 ` Mark Rutland
2022-08-10 14:31 ` Eliot Moss
2022-08-10 18:09 ` Mark Rutland
2022-08-10 18:11 ` Eliot Moss
2022-08-10 20:06 ` Dan Williams
2022-08-10 21:13 ` Davidlohr Bueso
2022-08-10 21:30 ` Dan Williams
2022-08-10 21:31 ` Davidlohr Bueso
2022-08-15 16:07 ` [PATCH] arch/cacheflush: Introduce flush_all_caches() Davidlohr Bueso
2022-08-16 9:01 ` Peter Zijlstra
2022-08-16 16:50 ` Dan Williams
2022-08-16 16:53 ` Davidlohr Bueso
2022-08-16 17:42 ` Dan Williams
2022-08-16 17:52 ` Davidlohr Bueso
2022-08-16 18:49 ` Dan Williams
2022-08-17 7:53 ` Peter Zijlstra
2022-08-17 7:49 ` Peter Zijlstra
2022-07-15 21:09 ` [PATCH RFC 11/15] cxl/pmem: Add "Unlock" security command support Dave Jiang
2022-08-04 13:19 ` Jonathan Cameron
2022-08-09 22:31 ` Dave Jiang
2022-07-15 21:09 ` [PATCH RFC 12/15] tools/testing/cxl: Add "Unlock" security opcode support Dave Jiang
2022-07-15 21:09 ` [PATCH RFC 13/15] cxl/pmem: Add "Passphrase Secure Erase" security command support Dave Jiang
2022-07-20 6:17 ` Davidlohr Bueso
2022-07-20 17:38 ` Dave Jiang
2022-07-20 18:02 ` Davidlohr Bueso
2022-07-15 21:09 ` [PATCH RFC 14/15] tools/testing/cxl: Add "passphrase secure erase" opcode support Dave Jiang
2022-07-15 21:10 ` [PATCH RFC 15/15] nvdimm/cxl/pmem: Add support for master passphrase disable security command Dave Jiang
2022-07-15 21:29 ` [PATCH RFC 00/15] Introduce security commands for CXL pmem device Davidlohr Bueso
2022-07-19 18:53 ` Dave Jiang
2022-08-03 17:03 ` Jonathan Cameron
2022-08-08 22:18 ` Dave Jiang
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