From b6805e127c6b7815ea3abc6516b461a18d9c4d3d Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Thu, 21 Sep 2017 14:59:08 +0200 Subject: [PATCH] s390x: use generic cpu_model parsing Define default CPU type in generic way in machine class_init and let common machine code handle cpu_model parsing. Signed-off-by: Igor Mammedov Reviewed-by: David Hildenbrand Message-Id: <1505998749-269631-1-git-send-email-imammedo@redhat.com> Signed-off-by: Cornelia Huck --- hw/s390x/s390-virtio-ccw.c | 28 +++------------------------- target/s390x/cpu.h | 6 ++++-- target/s390x/cpu_models.c | 11 ----------- target/s390x/kvm.c | 3 +++ 4 files changed, 10 insertions(+), 38 deletions(-) diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index fafbc6d4fe..1bcb7000ab 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -55,15 +55,8 @@ S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) static void s390_init_cpus(MachineState *machine) { MachineClass *mc = MACHINE_GET_CLASS(machine); - const char *typename; - gchar **model_pieces; - ObjectClass *oc; - CPUClass *cc; int i; - if (machine->cpu_model == NULL) { - machine->cpu_model = s390_default_cpu_model_name(); - } if (tcg_enabled() && max_cpus > 1) { error_report("Number of SMP CPUs requested (%d) exceeds max CPUs " "supported by TCG (1) on s390x", max_cpus); @@ -73,25 +66,8 @@ static void s390_init_cpus(MachineState *machine) /* initialize possible_cpus */ mc->possible_cpu_arch_ids(machine); - model_pieces = g_strsplit(machine->cpu_model, ",", 2); - if (!model_pieces[0]) { - error_report("Invalid/empty CPU model name"); - exit(1); - } - - oc = cpu_class_by_name(TYPE_S390_CPU, model_pieces[0]); - if (!oc) { - error_report("Unable to find CPU definition: %s", model_pieces[0]); - exit(1); - } - typename = object_class_get_name(oc); - cc = CPU_CLASS(oc); - /* after parsing, properties will be applied to all *typename* instances */ - cc->parse_features(typename, model_pieces[1], &error_fatal); - g_strfreev(model_pieces); - for (i = 0; i < smp_cpus; i++) { - s390x_new_cpu(typename, i, &error_fatal); + s390x_new_cpu(machine->cpu_type, i, &error_fatal); } } @@ -446,6 +422,8 @@ static void ccw_machine_class_init(ObjectClass *oc, void *data) mc->get_hotplug_handler = s390_get_hotplug_handler; mc->cpu_index_to_instance_props = s390_cpu_index_to_props; mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; + /* it is overridden with 'host' cpu *in kvm_arch_init* */ + mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); hc->plug = s390_machine_device_plug; hc->unplug_request = s390_machine_device_unplug_request; nc->nmi_monitor_handler = s390_nmi; diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h index 4414485089..5e2504d679 100644 --- a/target/s390x/cpu.h +++ b/target/s390x/cpu.h @@ -686,12 +686,14 @@ static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu) /* cpu_models.c */ void s390_cpu_list(FILE *f, fprintf_function cpu_fprintf); #define cpu_list s390_cpu_list -const char *s390_default_cpu_model_name(void); - /* helper.c */ #define cpu_init(cpu_model) cpu_generic_init(TYPE_S390_CPU, cpu_model) S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, Error **errp); + +#define S390_CPU_TYPE_SUFFIX "-" TYPE_S390_CPU +#define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX) + /* you can call this signal handler from your SIGBUS and SIGSEGV signal handlers to inform the virtual CPU of exceptions. non zero is returned if the signal was handled by the virtual CPU. */ diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index 1051a16ece..48dd7beddd 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -1211,9 +1211,6 @@ static void s390_qemu_cpu_model_class_init(ObjectClass *oc, void *data) qemu_hw_version()); } -#define S390_CPU_TYPE_SUFFIX "-" TYPE_S390_CPU -#define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX) - /* Generate type name for a cpu model. Caller has to free the string. */ static char *s390_cpu_type_name(const char *model_name) { @@ -1236,14 +1233,6 @@ ObjectClass *s390_cpu_class_by_name(const char *name) return oc; } -const char *s390_default_cpu_model_name(void) -{ - if (kvm_enabled()) { - return "host"; - } - return "qemu"; -} - static const TypeInfo qemu_s390_cpu_type_info = { .name = S390_CPU_TYPE_NAME("qemu"), .parent = TYPE_S390_CPU, diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index ebb75cafaa..c65d76f01a 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -287,6 +287,9 @@ void kvm_s390_crypto_reset(void) int kvm_arch_init(MachineState *ms, KVMState *s) { + MachineClass *mc = MACHINE_GET_CLASS(ms); + + mc->default_cpu_type = S390_CPU_TYPE_NAME("host"); cap_sync_regs = kvm_check_extension(s, KVM_CAP_SYNC_REGS); cap_async_pf = kvm_check_extension(s, KVM_CAP_ASYNC_PF); cap_mem_op = kvm_check_extension(s, KVM_CAP_S390_MEM_OP);