On 17.03.2023 14:19, Luca Fancellu wrote: > --- a/docs/misc/xen-command-line.pandoc > +++ b/docs/misc/xen-command-line.pandoc > @@ -1005,6 +1005,19 @@ restrictions set up here. Note that the values to be > specified here are > ACPI PXM ones, not Xen internal node numbers. `relaxed` sets up vCPU > affinities to prefer but be not limited to the specified node(s). > > +### dom0_sve (arm) > +> `= <integer>` > + > +> Default: `0` > + > +Enable arm SVE usage for Dom0 domain and sets the maximum SVE vector length. > +Values above 0 means feature is enabled for Dom0, otherwise feature is > disabled. > +Possible values are from 0 to maximum 2048, being multiple of 128, that will > be > +the maximum vector length. > +Please note that the platform can supports a lower value, if the requested > value > +is above the supported one, the domain creation will fail and the system will > +stop. > + > ### dom0_vcpus_pin > > `= <boolean>`
I'd like to raise the question of proliferation of top-level command line options controlling Dom0. In x86 we've specifically started to use "dom0=" as the one top-level option where almost all new controls should be added as sub-options. _If_ a top-level option is indeed preferred, then please avoid the use of an underscore in its name, when a dash does fine. Jan
