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<body class="manpage">
<div id="header">
<h1>
nvme-rpmb(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>nvme-rpmb -
   Send RPMB commands to an NVMe device
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<pre class="content"><em>nvme rpmb</em> &lt;device&gt; [--cmd=&lt;command&gt; | -c &lt;command&gt;]
                        [--msgfile=&lt;data-file&gt; | -f &lt;data-file&gt;]
                        [--keyfile=&lt;key-file&gt; | -g &lt;key-file&gt;]
                        [--key=&lt;key&gt; | -k &lt;key&gt;] [--msg=&lt;data&gt; | -d &lt;data&gt;]
                        [--address=&lt;offset&gt; | -o &lt;offset&gt;]
                        [--blocks=&lt;512 byte sectors&gt; | -b &lt;sectors&gt;]
                        [--target=&lt;target-id&gt; | -t &lt;id&gt;]
                        [--output-format=&lt;fmt&gt; | -o &lt;fmt&gt;] [--verbose | -v]</pre>
<div class="attribution">
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>For the NVMe device given, send an nvme rpmb command and provide the results.</p></div>
<div class="paragraph"><p>The &lt;device&gt; parameter is mandatory and NVMe character device (ex: /dev/nvme0)
must be specified. If the given device supports RPMB targets, command given
with --cmd or -c option shall be sent to the controller. If given NVMe device
doesn&#8217;t support RPMB targets, a message indicating the same shall be printed
along with controller register values related RPMB.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
-c &lt;command&gt;
</dt>
<dt class="hdlist1">
--cmd=&lt;command&gt;
</dt>
<dd>
<p>
        RPMB command to be sent to the device. It can be one of the following
</p>
<div class="literalblock">
<div class="content">
<pre><code>info          - print information regarding supported RPMB targets and
                access and total sizes. No further arguments are required</code></pre>
</div></div>
<div class="literalblock">
<div class="content">
<pre><code>program-key   - program 'key' specified with -k option or key read from
                file specified with --keyfile option to the specified
                RPMB target given with --target or -t options. As per
                spec, this is one time action which can't be undone.</code></pre>
</div></div>
<div class="literalblock">
<div class="content">
<pre><code>read-counter  - Read 'write counter' of specified RPMB target. The
                counter value read is printed onto STDOUT</code></pre>
</div></div>
<div class="literalblock">
<div class="content">
<pre><code>read-config   - Read 512 bytes of device configuration block data of
                specified RPMB target of the NVMe device. The data read
                is written to input file specified with --msgfile or -f
                option.
write-config  - Write 512 byes of device configuration block data
                from file specified by --msgfile or -f options to the
                RPMB target specified with --target or -t options.</code></pre>
</div></div>
<div class="literalblock">
<div class="content">
<pre><code>read-data     - Supports authenticated data reading from specified
                RPMB target (--target or -t option) at given offset
                specified with --address or -o option, using key
                specified using --keyfile or -k options. --blocks or
                -o option should be given to read the amount of data
                to be read in 512 byte blocks.</code></pre>
</div></div>
<div class="literalblock">
<div class="content">
<pre><code>write-data    - Supports authenticated data writing to specified RPMB
                target (--target or -t option) at given offset
                specified with --address or -o option, using key
                specified using --keyfile or -k options. --blocks or
                -o option should be given to indicate amount of data
                to be written in 512 byte blocks.</code></pre>
</div></div>
<div class="literalblock">
<div class="content">
<pre><code>For data transfer (read/write) commands, if the specified size is not
within the total size supported by a target, the request is failed
nvme-rpmb without sending it to device. RPMB target 0 is used as the
default target if --target or -t is not specified. 0x0 is used as the
default address if no -address or -o option is specified,</code></pre>
</div></div>
</dd>
<dt class="hdlist1">
-t &lt;target&gt;
</dt>
<dt class="hdlist1">
--target=&lt;target&gt;
</dt>
<dd>
<p>
        RPMB target id. This should be one of the supported RPMB targets as
        reported by <em>info</em> command. If nothing is given, default of 0 is used
        as RPMB target.
</p>
</dd>
<dt class="hdlist1">
-k &lt;key&gt;
</dt>
<dt class="hdlist1">
--key=&lt;key&gt;
</dt>
<dt class="hdlist1">
-g &lt;key-file&gt;
</dt>
<dt class="hdlist1">
--keyfile=&lt;key-file&gt;
</dt>
<dd>
<p>
        Authentication key to be used for read/write commands. This should have
        been already programmed by <em>program-key</em> command for given target. Key
        can be specified on command line using --key or -k options. Key can
        also be specified using file argument specified with --keyfile or -g
        options.
</p>
</dd>
<dt class="hdlist1">
-f &lt;data-file&gt;
</dt>
<dt class="hdlist1">
--msgfile=&lt;data-file&gt;
</dt>
<dd>
<p>
        Name of the file to be used for data transfer commands (read or write).
        For read command, if an existing file is specified, it will be appended.
</p>
</dd>
<dt class="hdlist1">
-d &lt;data&gt;
</dt>
<dt class="hdlist1">
--msg=&lt;data&gt;
</dt>
<dd>
<p>
        These options provide the data on the command line itself.
</p>
</dd>
<dt class="hdlist1">
-o &lt;offset&gt;
</dt>
<dt class="hdlist1">
--address=&lt;offset&gt;
</dt>
<dd>
<p>
        The address (in 512 byte sector offset from 0) to be used for data
        transfer commands (read or write) for a specified RPMB target.
</p>
</dd>
<dt class="hdlist1">
-b
</dt>
<dt class="hdlist1">
--blocks=&lt;sectors&gt;
</dt>
<dd>
<p>
        The size in 512 byte sectors to be used for data transfer commands
        (read or write) for a specified RPMB target.
</p>
</dd>
<dt class="hdlist1">
-o &lt;fmt&gt;
</dt>
<dt class="hdlist1">
--output-format=&lt;fmt&gt;
</dt>
<dd>
<p>
        Set the reporting format to <em>normal</em>, <em>json</em> or <em>binary</em>. Only one
        output format can be used at a time.
</p>
</dd>
<dt class="hdlist1">
-v
</dt>
<dt class="hdlist1">
--verbose
</dt>
<dd>
<p>
        Increase the information detail in the output.
</p>
</dd>
</dl></div>
</div>
</div>
<div class="sect1">
<h2 id="_examples">EXAMPLES</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Print RPMB support information of an NVMe device
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme rpmb /dev/nvme0 --cmd=info</code></pre>
</div></div>
</li>
<li>
<p>
Program <em>SecretKey</em> as authentication key for target 1
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme rpmb /dev/nvme0 --cmd=program-key -key='SecretKey' --target=1</code></pre>
</div></div>
</li>
<li>
<p>
Read current write counter of RPMB target 0
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme rpmb /dev/nvme0 --cmd=read-counter --target=0</code></pre>
</div></div>
</li>
<li>
<p>
Read configuration data block of target 2 into config.bin file
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme rpmb /dev/nvme0 --cmd=read-config --target=2 -f config.bin</code></pre>
</div></div>
</li>
<li>
<p>
Write 200 blocks of (512 bytes) from input.bin onto target 0
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme rpmb /dev/nvme0 -c write-data -t 0 -f input.bin -b 200 -k 'SecretKey'</code></pre>
</div></div>
</li>
<li>
<p>
Read 200 blocks of (512 bytes) from target 2, at offset 0x100 and save the
</p>
</li>
<li>
<p>
data onto output.bin
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme rpmb /dev/nvme0 -c read-data -t 2 -f out.bin -b 200 -o 0x100</code></pre>
</div></div>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_nvme">NVME</h2>
<div class="sectionbody">
<div class="paragraph"><p>Part of the nvme-user suite</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
Last updated
 2025-11-19 00:00:00 UTC
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