diff options
| -rw-r--r-- | target/riscv/cpu.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 2acf77949f..b2883ca533 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -1840,6 +1840,26 @@ static Property riscv_cpu_extensions[] = { DEFINE_PROP_END_OF_LIST(), }; + +#ifndef CONFIG_USER_ONLY +static void cpu_set_cfg_unavailable(Object *obj, Visitor *v, + const char *name, + void *opaque, Error **errp) +{ + const char *propname = opaque; + bool value; + + if (!visit_type_bool(v, name, &value, errp)) { + return; + } + + if (value) { + error_setg(errp, "extension %s is not available with KVM", + propname); + } +} +#endif + /* * Add CPU properties with user-facing flags. * @@ -1868,6 +1888,22 @@ static void riscv_cpu_add_user_properties(Object *obj) if (object_property_find(obj, prop->name)) { continue; } + + /* + * Set the default to disabled for every extension + * unknown to KVM and error out if the user attempts + * to enable any of them. + * + * We're giving a pass for non-bool properties since they're + * not related to the availability of extensions and can be + * safely ignored as is. + */ + if (prop->info == &qdev_prop_bool) { + object_property_add(obj, prop->name, "bool", + NULL, cpu_set_cfg_unavailable, + NULL, (void *)prop->name); + continue; + } } #endif qdev_property_add_static(dev, prop); |