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helo=mx0b-002c1b01.pphosted.com","X-Spam_score_int":"-31","X-Spam_score":"-3.2","X-Spam_bar":"---","X-Spam_report":"(-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.445,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no","X-Spam_action":"no action","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"Register all the defined Arm properties to the host model if CONFIG_KVM is\nenabled. Add property finder, getter/setter functions, and wire up the\nproperty registration in the CPU initialization path.\n\nCo-authored-by: Khushit Shah \nSigned-off-by: Shaju Abraham \n---\n target/arm/arm-cpu-props.c | 216 +++++++++++++++++++++++++++++++++++++\n target/arm/arm-cpu-props.h | 2 +-\n target/arm/cpu64.c | 3 +-\n 3 files changed, 219 insertions(+), 2 deletions(-)","diff":"diff --git a/target/arm/arm-cpu-props.c b/target/arm/arm-cpu-props.c\nindex f22fe7f08b..1a34428c00 100644\n--- a/target/arm/arm-cpu-props.c\n+++ b/target/arm/arm-cpu-props.c\n@@ -41,3 +41,219 @@ const ArmCpuPropDesc arm_cpu_props[] = {\n #include \"arm-cpu-props.inc.h\"\n { .name = NULL },\n };\n+\n+static const ArmCpuPropDesc *arm_find_prop(const char *name)\n+{\n+ const ArmCpuPropDesc *p;\n+ for (p = arm_cpu_props; p->name; p++) {\n+ if (g_str_equal(p->name, name)) {\n+ return p;\n+ }\n+ }\n+ return NULL;\n+}\n+\n+static void arm_single_field_get(ARMCPU *cpu, const ArmCpuPropDesc *p,\n+ Visitor *v, const char *name, Error **errp)\n+{\n+ uint64_t value;\n+ char *s;\n+ bool b;\n+\n+ arm_idreg_field_read(cpu, p->base_field, &value);\n+\n+ switch (p->type) {\n+ case ARM_PROP_STRING: {\n+ s = g_strdup(arm_arch_val_name(p->base_field, value));\n+\n+ if (!s) {\n+ error_setg(errp, \"Property '%s': unknown value %\" PRIu64,\n+ name, value);\n+ return;\n+ }\n+ visit_type_str(v, name, &s, errp);\n+ g_free(s);\n+ break;\n+ }\n+ case ARM_PROP_BOOLEAN: {\n+ b = value != 0;\n+ visit_type_bool(v, name, &b, errp);\n+ break;\n+ }\n+ case ARM_PROP_NUMERIC:\n+ visit_type_uint64(v, name, &value, errp);\n+ break;\n+ default:\n+ g_assert_not_reached();\n+ }\n+}\n+\n+static void arm_fractional_get(ARMCPU *cpu, const ArmCpuPropDesc *p,\n+ Visitor *v, const char *name, Error **errp)\n+{\n+ uint64_t base_val, frac_val;\n+ const ArmFracVal *val;\n+ char *s;\n+\n+ arm_idreg_field_read(cpu, p->base_field, &base_val);\n+ arm_idreg_field_read(cpu, p->frac_field, &frac_val);\n+\n+ for (val = p->vals; val->name; val++) {\n+ if (val->base_val == base_val && val->frac_val == frac_val) {\n+ s = g_strdup(val->name);\n+ visit_type_str(v, name, &s, errp);\n+ g_free(s);\n+ return;\n+ }\n+ }\n+\n+ error_setg(errp,\n+ \"Property '%s': unknown fractional value %\" PRIu64\n+ \".%\" PRIu64, name, base_val, frac_val);\n+}\n+\n+static void arm_cpu_prop_get(Object *obj, Visitor *v, const char *name,\n+ void *opaque, Error **errp)\n+{\n+ ARMCPU *cpu = ARM_CPU(obj);\n+ const ArmCpuPropDesc *p = arm_find_prop(name);\n+\n+ if (!p) {\n+ error_setg(errp, \"Property %s not found\", name);\n+ return;\n+ }\n+\n+ switch (p->type) {\n+ case ARM_PROP_STRING:\n+ case ARM_PROP_BOOLEAN:\n+ case ARM_PROP_NUMERIC:\n+ arm_single_field_get(cpu, p, v, name, errp);\n+ break;\n+ case ARM_PROP_FRACTIONAL:\n+ arm_fractional_get(cpu, p, v, name, errp);\n+ break;\n+ }\n+}\n+\n+static void arm_single_field_set(ARMCPU *cpu, const ArmCpuPropDesc *p,\n+ Visitor *v, const char *name, Error **errp)\n+{\n+ uint64_t value;\n+ char *str = NULL;\n+ bool b;\n+\n+ switch (p->type) {\n+ case ARM_PROP_STRING: {\n+\n+ if (!visit_type_str(v, name, &str, errp)) {\n+ return;\n+ }\n+ if (!arm_arch_val_from_name(p->base_field, str, &value)) {\n+ error_setg(errp, \"Property '%s': invalid value '%s'\", name, str);\n+ g_free(str);\n+ return;\n+ }\n+ g_free(str);\n+ break;\n+ }\n+ case ARM_PROP_BOOLEAN: {\n+\n+ if (!visit_type_bool(v, name, &b, errp)) {\n+ return;\n+ }\n+ value = b ? 1 : 0;\n+ break;\n+ }\n+ case ARM_PROP_NUMERIC:\n+ if (!visit_type_uint64(v, name, &value, errp)) {\n+ return;\n+ }\n+ break;\n+ default:\n+ g_assert_not_reached();\n+ }\n+\n+ if (!arm_idreg_field_write(cpu, p->base_field, value, errp)) {\n+ error_prepend(errp, \"Property '%s': \", name);\n+ }\n+}\n+\n+static void arm_fractional_set(ARMCPU *cpu, const ArmCpuPropDesc *p,\n+ Visitor *v, const char *name, Error **errp)\n+{\n+ char *str = NULL;\n+ const ArmFracVal *val;\n+\n+ if (!visit_type_str(v, name, &str, errp)) {\n+ return;\n+ }\n+\n+ for (val = p->vals; val->name; val++) {\n+ if (g_str_equal(val->name, str)) {\n+ if (!arm_idreg_field_write(cpu, p->base_field,\n+ val->base_val, errp)) {\n+ error_prepend(errp, \"Property '%s': \", name);\n+ g_free(str);\n+ return;\n+ }\n+ if (!arm_idreg_field_write(cpu, p->frac_field,\n+ val->frac_val, errp)) {\n+ error_prepend(errp, \"Property '%s': \", name);\n+ }\n+ g_free(str);\n+ return;\n+ }\n+ }\n+\n+ error_setg(errp, \"Property '%s': invalid fractional value '%s'\",\n+ name, str);\n+ g_free(str);\n+}\n+\n+static void arm_cpu_prop_set(Object *obj, Visitor *v, const char *name,\n+ void *opaque, Error **errp)\n+{\n+ ARMCPU *cpu = ARM_CPU(obj);\n+ const ArmCpuPropDesc *p = arm_find_prop(name);\n+\n+ if (!p) {\n+ error_setg(errp, \"Property %s not found\", name);\n+ return;\n+ }\n+\n+ switch (p->type) {\n+ case ARM_PROP_STRING:\n+ case ARM_PROP_BOOLEAN:\n+ case ARM_PROP_NUMERIC:\n+ arm_single_field_set(cpu, p, v, name, errp);\n+ break;\n+ case ARM_PROP_FRACTIONAL:\n+ arm_fractional_set(cpu, p, v, name, errp);\n+ break;\n+ }\n+}\n+\n+void arm_add_cpu_props(Object *obj)\n+{\n+ const char *type;\n+ const ArmCpuPropDesc *p;\n+\n+ for (p = arm_cpu_props; p->name; p++) {\n+ switch (p->type) {\n+ case ARM_PROP_STRING:\n+ case ARM_PROP_FRACTIONAL:\n+ type = \"string\";\n+ break;\n+ case ARM_PROP_BOOLEAN:\n+ type = \"bool\";\n+ break;\n+ case ARM_PROP_NUMERIC:\n+ type = \"number\";\n+ break;\n+ default:\n+ g_assert_not_reached();\n+ }\n+ object_property_add(obj, p->name, type,\n+ arm_cpu_prop_get, arm_cpu_prop_set, NULL, NULL);\n+ }\n+}\ndiff --git a/target/arm/arm-cpu-props.h b/target/arm/arm-cpu-props.h\nindex 1dc3786ea9..48f9c46ccb 100644\n--- a/target/arm/arm-cpu-props.h\n+++ b/target/arm/arm-cpu-props.h\n@@ -32,5 +32,5 @@ typedef struct ArmCpuPropDesc {\n ArmFieldIdx frac_field;\n const ArmFracVal *vals;\n } ArmCpuPropDesc;\n-\n+void arm_add_cpu_props(Object *obj);\n #endif\ndiff --git a/target/arm/cpu64.c b/target/arm/cpu64.c\nindex a93ad2da5a..0300f8677f 100644\n--- a/target/arm/cpu64.c\n+++ b/target/arm/cpu64.c\n@@ -37,7 +37,7 @@\n #include \"hw/core/qdev-properties.h\"\n #include \"internals.h\"\n #include \"cpu-features.h\"\n-\n+#include \"arm-cpu-props.h\"\n /* convert between _IDX and SYS_ */\n #define DEF(NAME, OP0, OP1, CRN, CRM, OP2) \\\n [NAME##_IDX] = SYS_##NAME,\n@@ -863,6 +863,7 @@ static void aarch64_host_initfn(Object *obj)\n kvm_arm_set_cpreg_mig_tolerances(cpu);\n kvm_arm_set_cpu_features_from_host(cpu);\n aarch64_add_sve_properties(obj);\n+ arm_add_cpu_props(obj);\n #elif defined(CONFIG_HVF)\n hvf_arm_set_cpu_features_from_host(cpu);\n #elif defined(CONFIG_WHPX)\n","prefixes":["RFC","v1","10/13"]}