On Tue, 14 Dec 2021, Oleksii Moisieiev wrote: > This enumeration sets SCI type for the domain. Currently there is > two possible options: either 'none' or 'scmi_smc'. > > 'none' is the default value and it disables SCI support at all. > > 'scmi_smc' enables access to the Firmware from the domains using SCMI > protocol and SMC as transport. > > Signed-off-by: Oleksii Moisieiev <oleksii_moisie...@epam.com> > --- > docs/man/xl.cfg.5.pod.in | 22 ++++++++++++++++++++++ > tools/include/libxl.h | 5 +++++ > tools/libs/light/libxl_types.idl | 6 ++++++ > tools/xl/xl_parse.c | 9 +++++++++ > 4 files changed, 42 insertions(+) > > diff --git a/docs/man/xl.cfg.5.pod.in b/docs/man/xl.cfg.5.pod.in > index b98d161398..92d0593875 100644 > --- a/docs/man/xl.cfg.5.pod.in > +++ b/docs/man/xl.cfg.5.pod.in > @@ -1614,6 +1614,28 @@ This feature is a B<technology preview>. > > =back > > +=item B<sci="STRING"> > + > +B<Arm only> Set SCI type for the guest. SCI is System Control Protocol - > +allows domain to manage various functions that are provided by HW platform. > + > +=over 4 > + > +=item B<none> > + > +Don't allow guest to use SCI if present on the platform. This is the default > +value. > + > +=item B<scmi_smc> > + > +Enables SCMI-SMC support for the guest. SCMI is System Control Management > +Inferface - allows domain to manage various functions that are provided by HW > +platform, such as clocks, resets and power-domains. Xen will mediate access > to > +clocks, power-domains and resets between Domains and ATF. Disabled by > default. > +SMC is used as transport.
Would it make sense to actually enable SCMI-SMC support for the guest by default if the guest has any devices directly assigned?
