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Wed, 13 Sep 2017 16:05:02 +0000 (UTC) From: Igor Mammedov To: qemu-devel@nongnu.org Date: Wed, 13 Sep 2017 18:04:56 +0200 Message-Id: <1505318697-77161-5-git-send-email-imammedo@redhat.com> In-Reply-To: <1505318697-77161-1-git-send-email-imammedo@redhat.com> References: <1505318697-77161-1-git-send-email-imammedo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Wed, 13 Sep 2017 16:05:02 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 4/5] pc: use generic cpu_model parsing X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" define default CPU type in generic way in pc_machine_class_init() and let common machine code to handle cpu_model parsing Patch also introduces TARGET_DEFAULT_CPU_TYPE define for 2 purposes: * make foo_machine_class_init() look uniform on every target * use define in [bsd|linux]-user targets to pick default cpu type Signed-off-by: Igor Mammedov Reviewed-by: Philippe Mathieu-Daudé --- target/i386/cpu.h | 9 +++++++++ hw/i386/pc.c | 41 +++++------------------------------------ hw/i386/pc_piix.c | 4 +--- target/i386/cpu.c | 3 --- 4 files changed, 15 insertions(+), 42 deletions(-) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 525d35d..4035a11 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1508,6 +1508,15 @@ uint64_t cpu_get_tsc(CPUX86State *env); #define cpu_init(cpu_model) cpu_generic_init(TYPE_X86_CPU, cpu_model) +#define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU +#define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX) + +#ifdef TARGET_X86_64 +#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu64") +#else +#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu32") +#endif + #define cpu_signal_handler cpu_x86_signal_handler #define cpu_list x86_cpu_list diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 2108104..2247ac0 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1107,7 +1107,6 @@ static void pc_new_cpu(const char *typename, int64_t apic_id, Error **errp) void pc_hot_add_cpu(const int64_t id, Error **errp) { - ObjectClass *oc; MachineState *ms = MACHINE(qdev_get_machine()); int64_t apic_id = x86_cpu_apic_id_from_index(id); Error *local_err = NULL; @@ -1124,9 +1123,7 @@ void pc_hot_add_cpu(const int64_t id, Error **errp) return; } - assert(ms->possible_cpus->cpus[0].cpu); /* BSP is always present */ - oc = OBJECT_CLASS(CPU_GET_CLASS(ms->possible_cpus->cpus[0].cpu)); - pc_new_cpu(object_class_get_name(oc), apic_id, &local_err); + pc_new_cpu(ms->cpu_type, apic_id, &local_err); if (local_err) { error_propagate(errp, local_err); return; @@ -1136,39 +1133,10 @@ void pc_hot_add_cpu(const int64_t id, Error **errp) void pc_cpus_init(PCMachineState *pcms) { int i; - CPUClass *cc; - ObjectClass *oc; - const char *typename; - gchar **model_pieces; const CPUArchIdList *possible_cpus; - MachineState *machine = MACHINE(pcms); + MachineState *ms = MACHINE(pcms); MachineClass *mc = MACHINE_GET_CLASS(pcms); - /* init CPUs */ - if (machine->cpu_model == NULL) { -#ifdef TARGET_X86_64 - machine->cpu_model = "qemu64"; -#else - machine->cpu_model = "qemu32"; -#endif - } - - 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_X86_CPU, model_pieces[0]); - if (oc == NULL) { - error_report("Unable to find CPU definition: %s", model_pieces[0]); - exit(1); - } - typename = object_class_get_name(oc); - cc = CPU_CLASS(oc); - cc->parse_features(typename, model_pieces[1], &error_fatal); - g_strfreev(model_pieces); - /* Calculates the limit to CPU APIC ID values * * Limit for the APIC ID value, so that all @@ -1177,9 +1145,9 @@ void pc_cpus_init(PCMachineState *pcms) * This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init(). */ pcms->apic_id_limit = x86_cpu_apic_id_from_index(max_cpus - 1) + 1; - possible_cpus = mc->possible_cpu_arch_ids(machine); + possible_cpus = mc->possible_cpu_arch_ids(ms); for (i = 0; i < smp_cpus; i++) { - pc_new_cpu(typename, possible_cpus->cpus[i].arch_id, &error_fatal); + pc_new_cpu(ms->cpu_type, possible_cpus->cpus[i].arch_id, &error_fatal); } } @@ -2360,6 +2328,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data) hc->unplug_request = pc_machine_device_unplug_request_cb; hc->unplug = pc_machine_device_unplug_cb; nc->nmi_monitor_handler = x86_nmi; + mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE; object_class_property_add(oc, PC_MACHINE_MEMHP_REGION_SIZE, "int", pc_machine_get_hotplug_memory_region_size, NULL, diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index b03cc04..9ff79b1 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -378,9 +378,6 @@ static void pc_compat_0_13(MachineState *machine) static void pc_init_isa(MachineState *machine) { - if (!machine->cpu_model) { - machine->cpu_model = "486"; - } x86_cpu_change_kvm_default("kvm-pv-eoi", NULL); enable_compat_apic_id_mode(); pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE); @@ -1113,6 +1110,7 @@ static void isapc_machine_options(MachineClass *m) pcmc->gigabyte_align = false; pcmc->smbios_legacy_mode = true; pcmc->has_reserved_memory = false; + m->default_cpu_type = X86_CPU_TYPE_NAME("486"); } DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa, diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 69676e1..d0000e4 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -705,9 +705,6 @@ void host_vendor_fms(char *vendor, int *family, int *model, int *stepping) /* CPU class name definitions: */ -#define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU -#define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX) - /* Return type name for a given CPU model name * Caller is responsible for freeing the returned string. */