| Message ID | 20200921221045.699690-15-ehabkost@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | qom: Convert some properties to class properties | expand |
On Mon, 21 Sep 2020 18:10:35 -0400 Eduardo Habkost <ehabkost@redhat.com> wrote: > Class properties make QOM introspection simpler and easier, as > they don't require an object to be instantiated. > > Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> > --- > Cc: Paolo Bonzini <pbonzini@redhat.com> > Cc: Richard Henderson <rth@twiddle.net> > Cc: Eduardo Habkost <ehabkost@redhat.com> > Cc: qemu-devel@nongnu.org Reviewed-by: Igor Mammedov <imammedo@redhat.com> > --- > target/i386/cpu.c | 33 ++++++++++++++++----------------- > 1 file changed, 16 insertions(+), 17 deletions(-) > > diff --git a/target/i386/cpu.c b/target/i386/cpu.c > index 66792f28ba7..1aba87e0a5b 100644 > --- a/target/i386/cpu.c > +++ b/target/i386/cpu.c > @@ -6819,16 +6819,17 @@ static void x86_cpu_release_bit_prop(Object *obj, const char *name, > * multiple bits in the same FeatureWord. In that case, the getter will return > * true only if all bits are set. > */ > -static void x86_cpu_register_bit_prop(X86CPU *cpu, > +static void x86_cpu_register_bit_prop(X86CPUClass *xcc, > const char *prop_name, > FeatureWord w, > int bitnr) > { > + ObjectClass *oc = OBJECT_CLASS(xcc); > BitProperty *fp; > ObjectProperty *op; > uint64_t mask = (1ULL << bitnr); > > - op = object_property_find(OBJECT(cpu), prop_name, NULL); > + op = object_class_property_find(oc, prop_name, NULL); > if (op) { > fp = op->opaque; > assert(fp->w == w); > @@ -6837,14 +6838,14 @@ static void x86_cpu_register_bit_prop(X86CPU *cpu, > fp = g_new0(BitProperty, 1); > fp->w = w; > fp->mask = mask; > - object_property_add(OBJECT(cpu), prop_name, "bool", > - x86_cpu_get_bit_prop, > - x86_cpu_set_bit_prop, > - x86_cpu_release_bit_prop, fp); > + object_class_property_add(oc, prop_name, "bool", > + x86_cpu_get_bit_prop, > + x86_cpu_set_bit_prop, > + x86_cpu_release_bit_prop, fp); > } > } > > -static void x86_cpu_register_feature_bit_props(X86CPU *cpu, > +static void x86_cpu_register_feature_bit_props(X86CPUClass *xcc, > FeatureWord w, > int bitnr) > { > @@ -6863,7 +6864,7 @@ static void x86_cpu_register_feature_bit_props(X86CPU *cpu, > /* aliases don't use "|" delimiters anymore, they are registered > * manually using object_property_add_alias() */ > assert(!strchr(name, '|')); > - x86_cpu_register_bit_prop(cpu, name, w, bitnr); > + x86_cpu_register_bit_prop(xcc, name, w, bitnr); > } > > #if !defined(CONFIG_USER_ONLY) > @@ -6917,7 +6918,6 @@ static void x86_cpu_initfn(Object *obj) > X86CPU *cpu = X86_CPU(obj); > X86CPUClass *xcc = X86_CPU_GET_CLASS(obj); > CPUX86State *env = &cpu->env; > - FeatureWord w; > > env->nr_dies = 1; > cpu_set_cpustate_pointers(cpu); > @@ -6929,14 +6929,6 @@ static void x86_cpu_initfn(Object *obj) > x86_cpu_get_feature_words, > NULL, NULL, (void *)cpu->filtered_features); > > - for (w = 0; w < FEATURE_WORDS; w++) { > - int bitnr; > - > - for (bitnr = 0; bitnr < 64; bitnr++) { > - x86_cpu_register_feature_bit_props(cpu, w, bitnr); > - } > - } > - > object_property_add_alias(obj, "sse3", obj, "pni"); > object_property_add_alias(obj, "pclmuldq", obj, "pclmulqdq"); > object_property_add_alias(obj, "sse4-1", obj, "sse4.1"); > @@ -7221,6 +7213,7 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data) > X86CPUClass *xcc = X86_CPU_CLASS(oc); > CPUClass *cc = CPU_CLASS(oc); > DeviceClass *dc = DEVICE_CLASS(oc); > + FeatureWord w; > > device_class_set_parent_realize(dc, x86_cpu_realizefn, > &xcc->parent_realize); > @@ -7310,6 +7303,12 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data) > x86_cpu_get_crash_info_qom, NULL, NULL, NULL); > #endif > > + for (w = 0; w < FEATURE_WORDS; w++) { > + int bitnr; > + for (bitnr = 0; bitnr < 64; bitnr++) { > + x86_cpu_register_feature_bit_props(xcc, w, bitnr); > + } > + } > } > > static const TypeInfo x86_cpu_type_info = {
On Mon, Sep 21, 2020 at 06:10:35PM -0400, Eduardo Habkost wrote: > Class properties make QOM introspection simpler and easier, as > they don't require an object to be instantiated. > > Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> > --- > Cc: Paolo Bonzini <pbonzini@redhat.com> > Cc: Richard Henderson <rth@twiddle.net> > Cc: Eduardo Habkost <ehabkost@redhat.com> > Cc: qemu-devel@nongnu.org > --- > target/i386/cpu.c | 33 ++++++++++++++++----------------- > 1 file changed, 16 insertions(+), 17 deletions(-) > > diff --git a/target/i386/cpu.c b/target/i386/cpu.c > index 66792f28ba7..1aba87e0a5b 100644 > --- a/target/i386/cpu.c > +++ b/target/i386/cpu.c > @@ -6819,16 +6819,17 @@ static void x86_cpu_release_bit_prop(Object *obj, const char *name, > * multiple bits in the same FeatureWord. In that case, the getter will return > * true only if all bits are set. > */ > -static void x86_cpu_register_bit_prop(X86CPU *cpu, > +static void x86_cpu_register_bit_prop(X86CPUClass *xcc, > const char *prop_name, > FeatureWord w, > int bitnr) > { > + ObjectClass *oc = OBJECT_CLASS(xcc); > BitProperty *fp; > ObjectProperty *op; > uint64_t mask = (1ULL << bitnr); > > - op = object_property_find(OBJECT(cpu), prop_name, NULL); > + op = object_class_property_find(oc, prop_name, NULL); > if (op) { > fp = op->opaque; > assert(fp->w == w); > @@ -6837,14 +6838,14 @@ static void x86_cpu_register_bit_prop(X86CPU *cpu, > fp = g_new0(BitProperty, 1); > fp->w = w; > fp->mask = mask; > - object_property_add(OBJECT(cpu), prop_name, "bool", > - x86_cpu_get_bit_prop, > - x86_cpu_set_bit_prop, > - x86_cpu_release_bit_prop, fp); > + object_class_property_add(oc, prop_name, "bool", > + x86_cpu_get_bit_prop, > + x86_cpu_set_bit_prop, > + x86_cpu_release_bit_prop, fp); This one is broken. x86_cpu_release_bit_prop() frees fp, and now fp should never be freed. The release function shouldn't be set. I will send a new version of this patch later. > [...]
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 66792f28ba7..1aba87e0a5b 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -6819,16 +6819,17 @@ static void x86_cpu_release_bit_prop(Object *obj, const char *name, * multiple bits in the same FeatureWord. In that case, the getter will return * true only if all bits are set. */ -static void x86_cpu_register_bit_prop(X86CPU *cpu, +static void x86_cpu_register_bit_prop(X86CPUClass *xcc, const char *prop_name, FeatureWord w, int bitnr) { + ObjectClass *oc = OBJECT_CLASS(xcc); BitProperty *fp; ObjectProperty *op; uint64_t mask = (1ULL << bitnr); - op = object_property_find(OBJECT(cpu), prop_name, NULL); + op = object_class_property_find(oc, prop_name, NULL); if (op) { fp = op->opaque; assert(fp->w == w); @@ -6837,14 +6838,14 @@ static void x86_cpu_register_bit_prop(X86CPU *cpu, fp = g_new0(BitProperty, 1); fp->w = w; fp->mask = mask; - object_property_add(OBJECT(cpu), prop_name, "bool", - x86_cpu_get_bit_prop, - x86_cpu_set_bit_prop, - x86_cpu_release_bit_prop, fp); + object_class_property_add(oc, prop_name, "bool", + x86_cpu_get_bit_prop, + x86_cpu_set_bit_prop, + x86_cpu_release_bit_prop, fp); } } -static void x86_cpu_register_feature_bit_props(X86CPU *cpu, +static void x86_cpu_register_feature_bit_props(X86CPUClass *xcc, FeatureWord w, int bitnr) { @@ -6863,7 +6864,7 @@ static void x86_cpu_register_feature_bit_props(X86CPU *cpu, /* aliases don't use "|" delimiters anymore, they are registered * manually using object_property_add_alias() */ assert(!strchr(name, '|')); - x86_cpu_register_bit_prop(cpu, name, w, bitnr); + x86_cpu_register_bit_prop(xcc, name, w, bitnr); } #if !defined(CONFIG_USER_ONLY) @@ -6917,7 +6918,6 @@ static void x86_cpu_initfn(Object *obj) X86CPU *cpu = X86_CPU(obj); X86CPUClass *xcc = X86_CPU_GET_CLASS(obj); CPUX86State *env = &cpu->env; - FeatureWord w; env->nr_dies = 1; cpu_set_cpustate_pointers(cpu); @@ -6929,14 +6929,6 @@ static void x86_cpu_initfn(Object *obj) x86_cpu_get_feature_words, NULL, NULL, (void *)cpu->filtered_features); - for (w = 0; w < FEATURE_WORDS; w++) { - int bitnr; - - for (bitnr = 0; bitnr < 64; bitnr++) { - x86_cpu_register_feature_bit_props(cpu, w, bitnr); - } - } - object_property_add_alias(obj, "sse3", obj, "pni"); object_property_add_alias(obj, "pclmuldq", obj, "pclmulqdq"); object_property_add_alias(obj, "sse4-1", obj, "sse4.1"); @@ -7221,6 +7213,7 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data) X86CPUClass *xcc = X86_CPU_CLASS(oc); CPUClass *cc = CPU_CLASS(oc); DeviceClass *dc = DEVICE_CLASS(oc); + FeatureWord w; device_class_set_parent_realize(dc, x86_cpu_realizefn, &xcc->parent_realize); @@ -7310,6 +7303,12 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data) x86_cpu_get_crash_info_qom, NULL, NULL, NULL); #endif + for (w = 0; w < FEATURE_WORDS; w++) { + int bitnr; + for (bitnr = 0; bitnr < 64; bitnr++) { + x86_cpu_register_feature_bit_props(xcc, w, bitnr); + } + } } static const TypeInfo x86_cpu_type_info = {
Class properties make QOM introspection simpler and easier, as they don't require an object to be instantiated. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> --- Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: qemu-devel@nongnu.org --- target/i386/cpu.c | 33 ++++++++++++++++----------------- 1 file changed, 16 insertions(+), 17 deletions(-)