| Message ID | 146780723427.26232.10779748351110554240.stgit@bahia.lab.toulouse-stg.fr.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, 06 Jul 2016 14:14:25 +0200 Greg Kurz <groug@kaod.org> wrote: > If we want to generate cpu_dt_id in the machine code, this must occur > before the cpu gets realized. We must open code the cpu creation to be > able to do this. > > This patch just does that. > > Signed-off-by: Greg Kurz <groug@kaod.org> > --- > v3: don't parse cpu features as it is done in a previous patch > --- > hw/ppc/ppc.c | 32 +++++++++++++++++++++++++++++++- > 1 file changed, 31 insertions(+), 1 deletion(-) > > diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c > index 313b3f0b9a51..0df32a9b3965 100644 > --- a/hw/ppc/ppc.c > +++ b/hw/ppc/ppc.c > @@ -32,6 +32,7 @@ > #include "sysemu/cpus.h" > #include "hw/timer/m48t59.h" > #include "qemu/log.h" > +#include "qapi/error.h" > #include "qemu/error-report.h" > #include "qapi/error.h" > #include "hw/loader.h" > @@ -1354,7 +1355,36 @@ PowerPCCPU *ppc_get_vcpu_by_dt_id(int cpu_dt_id) > > PowerPCCPU *ppc_cpu_init(const char *cpu_model) > { > - return POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model)); > + PowerPCCPU *cpu; > + ObjectClass *oc; > + gchar **model_pieces; > + Error *err = NULL; > + > + model_pieces = g_strsplit(cpu_model, ",", 2); > + if (!model_pieces[0]) { > + error_report("Invalid/empty CPU model name"); > + return NULL; > + } > + > + oc = cpu_class_by_name(TYPE_POWERPC_CPU, model_pieces[0]); > + if (oc == NULL) { > + error_report("Unable to find CPU definition: %s", model_pieces[0]); > + goto out; > + } > + > + cpu = POWERPC_CPU(object_new(object_class_get_name(oc))); > + object_property_set_bool(OBJECT(cpu), true, "realized", &err); > + > +out: > + g_strfreev(model_pieces); > + > + if (err != NULL) { > + error_report_err(err); > + object_unref(OBJECT(cpu)); cpu can be uninitialized here (thanks travis) I will initialize cpu to NULL and do this: if (cpu != NULL) { object_unref(OBJECT(cpu)); } > + return NULL; > + } > + > + return cpu; > } > > void ppc_cpu_parse_features(const char *cpu_model) > >
On Wed, Jul 06, 2016 at 02:14:25PM +0200, Greg Kurz wrote: > If we want to generate cpu_dt_id in the machine code, this must occur > before the cpu gets realized. We must open code the cpu creation to be > able to do this. > > This patch just does that. > > Signed-off-by: Greg Kurz <groug@kaod.org> > --- > v3: don't parse cpu features as it is done in a previous patch Reviewed-by: David Gibson <david@gibson.dropbear.id.au> > --- > hw/ppc/ppc.c | 32 +++++++++++++++++++++++++++++++- > 1 file changed, 31 insertions(+), 1 deletion(-) > > diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c > index 313b3f0b9a51..0df32a9b3965 100644 > --- a/hw/ppc/ppc.c > +++ b/hw/ppc/ppc.c > @@ -32,6 +32,7 @@ > #include "sysemu/cpus.h" > #include "hw/timer/m48t59.h" > #include "qemu/log.h" > +#include "qapi/error.h" > #include "qemu/error-report.h" > #include "qapi/error.h" > #include "hw/loader.h" > @@ -1354,7 +1355,36 @@ PowerPCCPU *ppc_get_vcpu_by_dt_id(int cpu_dt_id) > > PowerPCCPU *ppc_cpu_init(const char *cpu_model) > { > - return POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model)); > + PowerPCCPU *cpu; > + ObjectClass *oc; > + gchar **model_pieces; > + Error *err = NULL; > + > + model_pieces = g_strsplit(cpu_model, ",", 2); > + if (!model_pieces[0]) { > + error_report("Invalid/empty CPU model name"); > + return NULL; > + } > + > + oc = cpu_class_by_name(TYPE_POWERPC_CPU, model_pieces[0]); > + if (oc == NULL) { > + error_report("Unable to find CPU definition: %s", model_pieces[0]); > + goto out; > + } > + > + cpu = POWERPC_CPU(object_new(object_class_get_name(oc))); > + object_property_set_bool(OBJECT(cpu), true, "realized", &err); > + > +out: > + g_strfreev(model_pieces); > + > + if (err != NULL) { > + error_report_err(err); > + object_unref(OBJECT(cpu)); > + return NULL; > + } > + > + return cpu; > } > > void ppc_cpu_parse_features(const char *cpu_model) >
On Wed, Jul 06, 2016 at 06:06:16PM +0200, Greg Kurz wrote: > On Wed, 06 Jul 2016 14:14:25 +0200 > Greg Kurz <groug@kaod.org> wrote: > > > If we want to generate cpu_dt_id in the machine code, this must occur > > before the cpu gets realized. We must open code the cpu creation to be > > able to do this. > > > > This patch just does that. > > > > Signed-off-by: Greg Kurz <groug@kaod.org> > > --- > > v3: don't parse cpu features as it is done in a previous patch > > --- > > hw/ppc/ppc.c | 32 +++++++++++++++++++++++++++++++- > > 1 file changed, 31 insertions(+), 1 deletion(-) > > > > diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c > > index 313b3f0b9a51..0df32a9b3965 100644 > > --- a/hw/ppc/ppc.c > > +++ b/hw/ppc/ppc.c > > @@ -32,6 +32,7 @@ > > #include "sysemu/cpus.h" > > #include "hw/timer/m48t59.h" > > #include "qemu/log.h" > > +#include "qapi/error.h" > > #include "qemu/error-report.h" > > #include "qapi/error.h" > > #include "hw/loader.h" > > @@ -1354,7 +1355,36 @@ PowerPCCPU *ppc_get_vcpu_by_dt_id(int cpu_dt_id) > > > > PowerPCCPU *ppc_cpu_init(const char *cpu_model) > > { > > - return POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model)); > > + PowerPCCPU *cpu; > > + ObjectClass *oc; > > + gchar **model_pieces; > > + Error *err = NULL; > > + > > + model_pieces = g_strsplit(cpu_model, ",", 2); > > + if (!model_pieces[0]) { > > + error_report("Invalid/empty CPU model name"); > > + return NULL; > > + } > > + > > + oc = cpu_class_by_name(TYPE_POWERPC_CPU, model_pieces[0]); > > + if (oc == NULL) { > > + error_report("Unable to find CPU definition: %s", model_pieces[0]); > > + goto out; > > + } > > + > > + cpu = POWERPC_CPU(object_new(object_class_get_name(oc))); > > + object_property_set_bool(OBJECT(cpu), true, "realized", &err); > > + > > +out: > > + g_strfreev(model_pieces); > > + > > + if (err != NULL) { > > + error_report_err(err); > > + object_unref(OBJECT(cpu)); > > cpu can be uninitialized here (thanks travis) > > I will initialize cpu to NULL and do this: > > if (cpu != NULL) { > object_unref(OBJECT(cpu)); > } Good catch. > > + return NULL; > > + } > > + > > + return cpu; > > } > > > > void ppc_cpu_parse_features(const char *cpu_model) > > > > >
diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c index 313b3f0b9a51..0df32a9b3965 100644 --- a/hw/ppc/ppc.c +++ b/hw/ppc/ppc.c @@ -32,6 +32,7 @@ #include "sysemu/cpus.h" #include "hw/timer/m48t59.h" #include "qemu/log.h" +#include "qapi/error.h" #include "qemu/error-report.h" #include "qapi/error.h" #include "hw/loader.h" @@ -1354,7 +1355,36 @@ PowerPCCPU *ppc_get_vcpu_by_dt_id(int cpu_dt_id) PowerPCCPU *ppc_cpu_init(const char *cpu_model) { - return POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model)); + PowerPCCPU *cpu; + ObjectClass *oc; + gchar **model_pieces; + Error *err = NULL; + + model_pieces = g_strsplit(cpu_model, ",", 2); + if (!model_pieces[0]) { + error_report("Invalid/empty CPU model name"); + return NULL; + } + + oc = cpu_class_by_name(TYPE_POWERPC_CPU, model_pieces[0]); + if (oc == NULL) { + error_report("Unable to find CPU definition: %s", model_pieces[0]); + goto out; + } + + cpu = POWERPC_CPU(object_new(object_class_get_name(oc))); + object_property_set_bool(OBJECT(cpu), true, "realized", &err); + +out: + g_strfreev(model_pieces); + + if (err != NULL) { + error_report_err(err); + object_unref(OBJECT(cpu)); + return NULL; + } + + return cpu; } void ppc_cpu_parse_features(const char *cpu_model)
If we want to generate cpu_dt_id in the machine code, this must occur before the cpu gets realized. We must open code the cpu creation to be able to do this. This patch just does that. Signed-off-by: Greg Kurz <groug@kaod.org> --- v3: don't parse cpu features as it is done in a previous patch --- hw/ppc/ppc.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-)