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| author | Giedrius Statkevičius <giedriuswork@gmail.com> | 2020-11-11 21:45:58 +0100 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2021-02-17 07:31:29 +0100 |
| commit | 68337e55f62cf49b7bdfb73dc5662e23b0ea17fa (patch) | |
| tree | 494f0944d4b54579df479c6a9dd06ef0809376a3 /man/systemd.unit.xml | |
| parent | Merge pull request #18007 from fw-strlen/ipv6_masq_and_dnat (diff) | |
| download | systemd-68337e55f62cf49b7bdfb73dc5662e23b0ea17fa.tar.xz systemd-68337e55f62cf49b7bdfb73dc5662e23b0ea17fa.zip | |
condition: add CPUFeature
Taking a stab at implementing #14479.
Add {Condition,Assert}CPUFeature to `systemd-analyze` & friends. Implement it
by executing the CPUID instruction. Add tables for common x86/i386
features.
Tested via unit tests + checked that commands such as:
```bash
systemd-analyze condition 'AssertCPUFeature = rdrand'
```
Succeed as expected and that commands such as
```bash
systemd-analyze condition 'AssertCPUFeature = foobar'
```
Fail as expected. Finally, I have amended the `systemd.unit` manual page
with the new condition and the list of all currently supported flags.
Diffstat (limited to 'man/systemd.unit.xml')
| -rw-r--r-- | man/systemd.unit.xml | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml index cc9eedd60b..da350844bd 100644 --- a/man/systemd.unit.xml +++ b/man/systemd.unit.xml @@ -1490,6 +1490,68 @@ </varlistentry> <varlistentry> + <term><varname>ConditionCPUFeature=</varname></term> + + <listitem><para>Verify that a given CPU feature is available via the <literal>CPUID</literal> + instruction. This condition only does something on i386 and x86-64 processors. On other + processors it is assumed that the CPU does not support the given feature. It checks the leaves + <literal>1</literal>, <literal>7</literal>, <literal>0x80000001</literal>, and + <literal>0x80000007</literal>. Valid values are: + <literal>fpu</literal>, + <literal>vme</literal>, + <literal>de</literal>, + <literal>pse</literal>, + <literal>tsc</literal>, + <literal>msr</literal>, + <literal>pae</literal>, + <literal>mce</literal>, + <literal>cx8</literal>, + <literal>apic</literal>, + <literal>sep</literal>, + <literal>mtrr</literal>, + <literal>pge</literal>, + <literal>mca</literal>, + <literal>cmov</literal>, + <literal>pat</literal>, + <literal>pse36</literal>, + <literal>clflush</literal>, + <literal>mmx</literal>, + <literal>fxsr</literal>, + <literal>sse</literal>, + <literal>sse2</literal>, + <literal>ht</literal>, + <literal>pni</literal>, + <literal>pclmul</literal>, + <literal>monitor</literal>, + <literal>ssse3</literal>, + <literal>fma3</literal>, + <literal>cx16</literal>, + <literal>sse4_1</literal>, + <literal>sse4_2</literal>, + <literal>movbe</literal>, + <literal>popcnt</literal>, + <literal>aes</literal>, + <literal>xsave</literal>, + <literal>osxsave</literal>, + <literal>avx</literal>, + <literal>f16c</literal>, + <literal>rdrand</literal>, + <literal>bmi1</literal>, + <literal>avx2</literal>, + <literal>bmi2</literal>, + <literal>rdseed</literal>, + <literal>adx</literal>, + <literal>sha_ni</literal>, + <literal>syscall</literal>, + <literal>rdtscp</literal>, + <literal>lm</literal>, + <literal>lahf_lm</literal>, + <literal>abm</literal>, + <literal>constant_tsc</literal>.</para> + </listitem> + </varlistentry> + + <varlistentry> <term><varname>AssertArchitecture=</varname></term> <term><varname>AssertVirtualization=</varname></term> <term><varname>AssertHost=</varname></term> |