| Message ID | 1365172636-28628-13-git-send-email-imammedo@redhat.com |
|---|---|
| State | New |
| Headers | show |
Il 05/04/2013 16:37, Igor Mammedov ha scritto: > ... it should be used only on slow path since it does recursive search > on /machine QOM tree for objects of TYPE_CPU > > Signed-off-by: Igor Mammedov <imammedo@redhat.com> > --- > include/qom/cpu.h | 10 ++++++++++ > qom/cpu.c | 21 +++++++++++++++++++++ > 2 files changed, 31 insertions(+) > > diff --git a/include/qom/cpu.h b/include/qom/cpu.h > index 0d33009..5cac79b 100644 > --- a/include/qom/cpu.h > +++ b/include/qom/cpu.h > @@ -227,6 +227,16 @@ void run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data); > */ > CPUState *qemu_get_cpu(int index); > > +/** > + * cpu_exists: > + * @id - guest exposed CPU ID to lookup > + * > + * Search for CPU with specified ID. > + * > + * Returns: true - CPU is found, false - CPU isn't found > + */ > +bool cpu_exists(int64_t id); > + > #ifndef CONFIG_USER_ONLY > > typedef void (*CPUInterruptHandler)(CPUState *, int); > diff --git a/qom/cpu.c b/qom/cpu.c > index a54d4d1..46b77d3 100644 > --- a/qom/cpu.c > +++ b/qom/cpu.c > @@ -24,6 +24,27 @@ > #include "qemu/notify.h" > #include "sysemu/sysemu.h" > > +static int cpu_exist_cb(Object *obj, void *opaque) > +{ > + int64_t id = *(int64_t *)opaque; > + Object *cpu_obj = object_dynamic_cast(obj, TYPE_CPU); > + > + if (cpu_obj) { > + CPUState *cpu = CPU(cpu_obj); > + CPUClass *klass = CPU_GET_CLASS(cpu); > + > + if (klass->get_firmware_id && klass->get_firmware_id(cpu) == id) { > + return 1; > + } > + } > + return object_child_foreach(obj, cpu_exist_cb, opaque); > +} > + > +bool cpu_exists(int64_t id) > +{ > + return cpu_exist_cb(qdev_get_machine(), &id) ? true : false; > +} > + > /* CPU hot-plug notifiers */ > static NotifierList cpu_added_notifiers = > NOTIFIER_LIST_INITIALIZER(cpu_add_notifiers); > Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/include/qom/cpu.h b/include/qom/cpu.h index 0d33009..5cac79b 100644 --- a/include/qom/cpu.h +++ b/include/qom/cpu.h @@ -227,6 +227,16 @@ void run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data); */ CPUState *qemu_get_cpu(int index); +/** + * cpu_exists: + * @id - guest exposed CPU ID to lookup + * + * Search for CPU with specified ID. + * + * Returns: true - CPU is found, false - CPU isn't found + */ +bool cpu_exists(int64_t id); + #ifndef CONFIG_USER_ONLY typedef void (*CPUInterruptHandler)(CPUState *, int); diff --git a/qom/cpu.c b/qom/cpu.c index a54d4d1..46b77d3 100644 --- a/qom/cpu.c +++ b/qom/cpu.c @@ -24,6 +24,27 @@ #include "qemu/notify.h" #include "sysemu/sysemu.h" +static int cpu_exist_cb(Object *obj, void *opaque) +{ + int64_t id = *(int64_t *)opaque; + Object *cpu_obj = object_dynamic_cast(obj, TYPE_CPU); + + if (cpu_obj) { + CPUState *cpu = CPU(cpu_obj); + CPUClass *klass = CPU_GET_CLASS(cpu); + + if (klass->get_firmware_id && klass->get_firmware_id(cpu) == id) { + return 1; + } + } + return object_child_foreach(obj, cpu_exist_cb, opaque); +} + +bool cpu_exists(int64_t id) +{ + return cpu_exist_cb(qdev_get_machine(), &id) ? true : false; +} + /* CPU hot-plug notifiers */ static NotifierList cpu_added_notifiers = NOTIFIER_LIST_INITIALIZER(cpu_add_notifiers);
... it should be used only on slow path since it does recursive search on /machine QOM tree for objects of TYPE_CPU Signed-off-by: Igor Mammedov <imammedo@redhat.com> --- include/qom/cpu.h | 10 ++++++++++ qom/cpu.c | 21 +++++++++++++++++++++ 2 files changed, 31 insertions(+)