man/systemd-detect-virt: list known CVM technologies

Add a section which lists the known confidential virtual machine
technologies.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2024-08-02 13:17:56 +01:00
parent 9ffdfc67c6
commit a8fb5d21fd

View File

@ -217,6 +217,50 @@
WSL is categorized as a container for practical purposes.
Multiple WSL environments share the same kernel and services
should generally behave like when being run in a container.</para>
<para>When executed with <option>--cvm</option>, instead of
printing the virtualization technology, it will display the
confidential virtual machine technology, if any. The
following technologies are currently identified:</para>
<table>
<title>Known confidential virtualization technologies</title>
<tgroup cols='2' align='left' colsep='1' rowsep='1'>
<colspec colname="id" />
<colspec colname="product" />
<thead>
<row>
<entry>Arch</entry>
<entry>ID</entry>
<entry>Technology</entry>
</row>
</thead>
<tbody>
<row>
<entry valign="top" morerows="3">x86_64</entry>
<entry><varname>sev</varname></entry>
<entry>AMD Secure Encrypted Virtualization</entry>
</row>
<row>
<entry><varname>sev-es</varname></entry>
<entry>AMD Secure Encrypted Virtualization - Encrypted State</entry>
</row>
<row>
<entry><varname>sev-snp</varname></entry>
<entry>AMD Secure Encrypted Virtualization - Secure Nested Paging</entry>
</row>
<row>
<entry><varname>tdx</varname></entry>
<entry>Intel Trust Domain Extensions</entry>
</row>
<row>
<entry>s390x</entry>
<entry><varname>protvirt</varname></entry>
<entry>IBM Protected Virtualization (Secure Execution)</entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
<refsect1>