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 <[email protected]> --- 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. + +=back + =back =head2 Paravirtualised (PV) Guest Specific Options diff --git a/tools/include/libxl.h b/tools/include/libxl.h index 2bbbd21f0b..30e5aee119 100644 --- a/tools/include/libxl.h +++ b/tools/include/libxl.h @@ -278,6 +278,11 @@ */ #define LIBXL_HAVE_BUILDINFO_ARCH_ARM_TEE 1 +/* + * libxl_domain_build_info has the arch_arm.sci field. + */ +#define LIBXL_HAVE_BUILDINFO_ARCH_ARM_SCI 1 + /* * LIBXL_HAVE_SOFT_RESET indicates that libxl supports performing * 'soft reset' for domains and there is 'soft_reset' shutdown reason diff --git a/tools/libs/light/libxl_types.idl b/tools/libs/light/libxl_types.idl index 2a42da2f7d..9067b509f4 100644 --- a/tools/libs/light/libxl_types.idl +++ b/tools/libs/light/libxl_types.idl @@ -480,6 +480,11 @@ libxl_tee_type = Enumeration("tee_type", [ (1, "optee") ], init_val = "LIBXL_TEE_TYPE_NONE") +libxl_sci_type = Enumeration("sci_type", [ + (0, "none"), + (1, "scmi_smc") + ], init_val = "LIBXL_SCI_TYPE_NONE") + libxl_rdm_reserve = Struct("rdm_reserve", [ ("strategy", libxl_rdm_reserve_strategy), ("policy", libxl_rdm_reserve_policy), @@ -564,6 +569,7 @@ libxl_domain_build_info = Struct("domain_build_info",[ ("apic", libxl_defbool), ("dm_restrict", libxl_defbool), ("tee", libxl_tee_type), + ("sci", libxl_sci_type), ("u", KeyedUnion(None, libxl_domain_type, "type", [("hvm", Struct(None, [("firmware", string), ("bios", libxl_bios_type), diff --git a/tools/xl/xl_parse.c b/tools/xl/xl_parse.c index 117fcdcb2b..c37bf6298b 100644 --- a/tools/xl/xl_parse.c +++ b/tools/xl/xl_parse.c @@ -2747,6 +2747,15 @@ skip_usbdev: } } + if (!xlu_cfg_get_string (config, "sci", &buf, 1)) { + e = libxl_sci_type_from_string(buf, &b_info->sci); + if (e) { + fprintf(stderr, + "Unknown sci \"%s\" specified\n", buf); + exit(-ERROR_FAIL); + } + } + parse_vkb_list(config, d_config); xlu_cfg_get_defbool(config, "xend_suspend_evtchn_compat", -- 2.27.0
