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bh=+ZWiSxtMQUoUO/arVH3g5PbTmlxfI1mWpyzLVstq7VI=; b=Da870+P7wBYXmptcBB2W4gqetQ9A3i1MezXwK1wvVDr7jGFyMmXeGkW6sShWUILLeRCcy2 N3twOwXMZkt3VgDRBh6iNI7H/cBWBPBhhtKcBOYB4MEhIROjLOI16yT93U2ADQWDF2X6fr TQ3K2Ca9xkgYJshruaHP/VyGHv+35xA= X-MC-Unique: YAHnSkDnPcWrJrXWr6AscA-1 From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PATCH 26/28] vl: switch -M parsing to keyval Date: Wed, 2 Dec 2020 04:03:03 -0500 Message-Id: <20201202090305.4129317-27-pbonzini@redhat.com> In-Reply-To: <20201202090305.4129317-1-pbonzini@redhat.com> References: <20201202090305.4129317-1-pbonzini@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pbonzini@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -35 X-Spam_score: -3.6 X-Spam_bar: --- X-Spam_report: (-3.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.497, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, imammedo@redhat.com, armbru@redhat.com, qemu-block@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Switch from QemuOpts to keyval. This enables non-scalar machine properties. Signed-off-by: Paolo Bonzini --- softmmu/vl.c | 296 +++++++++++++++++++++++---------------------------- 1 file changed, 132 insertions(+), 164 deletions(-) diff --git a/softmmu/vl.c b/softmmu/vl.c index a942ce2004..5ade1cf6c5 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -134,6 +134,8 @@ static const char *cpu_option; static const char *mem_path; static const char *incoming; static const char *loadvm; +static const char *accelerators; +static QDict *machine_opts_dict; static GSList *object_opts_list =3D NULL; static ram_addr_t maxram_size; static uint64_t ram_slots; @@ -225,21 +227,6 @@ static QemuOptsList qemu_option_rom_opts =3D { }, }; =20 -static QemuOptsList qemu_machine_opts =3D { - .name =3D "machine", - .implied_opt_name =3D "type", - .merge_lists =3D true, - .head =3D QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head), - .desc =3D { - /* - * no elements =3D> accept any - * sanity checking will happen later - * when setting machine properties - */ - { } - }, -}; - static QemuOptsList qemu_accel_opts =3D { .name =3D "accel", .implied_opt_name =3D "accel", @@ -469,16 +456,6 @@ static QemuOptsList qemu_fw_cfg_opts =3D { }, }; =20 -/** - * Get machine options - * - * Returns: machine options (never null). - */ -static QemuOpts *qemu_get_machine_opts(void) -{ - return qemu_find_opts_singleton("machine"); -} - const char *qemu_get_vm_name(void) { return qemu_name; @@ -786,33 +763,6 @@ static MachineClass *find_default_machine(GSList *mach= ines) return default_machineclass; } =20 -static int machine_help_func(QemuOpts *opts, MachineState *machine) -{ - ObjectProperty *prop; - ObjectPropertyIterator iter; - - if (!qemu_opt_has_help_opt(opts)) { - return 0; - } - - object_property_iter_init(&iter, OBJECT(machine)); - while ((prop =3D object_property_iter_next(&iter))) { - if (!prop->set) { - continue; - } - - printf("%s.%s=3D%s", MACHINE_GET_CLASS(machine)->name, - prop->name, prop->type); - if (prop->description) { - printf(" (%s)\n", prop->description); - } else { - printf("\n"); - } - } - - return 1; -} - static void version(void) { printf("QEMU emulator version " QEMU_FULL_VERSION "\n" @@ -1503,33 +1453,28 @@ static gint machine_class_cmp(gconstpointer a, gcon= stpointer b) object_class_get_name(OBJECT_CLASS(mc1))); } =20 -static MachineClass *machine_parse(const char *name, GSList *machines) +static void machine_help_func(const QDict *qdict) { - MachineClass *mc; - GSList *el; + GSList *machines, *el; + const char *type =3D qdict_get_try_str(qdict, "type"); =20 - if (is_help_option(name)) { - printf("Supported machines are:\n"); - machines =3D g_slist_sort(machines, machine_class_cmp); - for (el =3D machines; el; el =3D el->next) { - MachineClass *mc =3D el->data; - if (mc->alias) { - printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc= ->name); - } - printf("%-20s %s%s%s\n", mc->name, mc->desc, - mc->is_default ? " (default)" : "", - mc->deprecation_reason ? " (deprecated)" : ""); - } - exit(0); + if (type) { + type_print_class_properties(type); + return; } =20 - mc =3D find_machine(name, machines); - if (!mc) { - error_report("unsupported machine type"); - error_printf("Use -machine help to list supported machines\n"); - exit(1); + printf("Supported machines are:\n"); + machines =3D object_class_get_list(TYPE_MACHINE, false); + machines =3D g_slist_sort(machines, machine_class_cmp); + for (el =3D machines; el; el =3D el->next) { + MachineClass *mc =3D el->data; + if (mc->alias) { + printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->na= me); + } + printf("%-20s %s%s%s\n", mc->name, mc->desc, + mc->is_default ? " (default)" : "", + mc->deprecation_reason ? " (deprecated)" : ""); } - return mc; } =20 static const char *pid_file; @@ -1582,32 +1527,31 @@ static const QEMUOption *lookup_opt(int argc, char = **argv, return popt; } =20 -static MachineClass *select_machine(void) +static MachineClass *select_machine(QDict *qdict, Error **errp) { + const char *optarg =3D qdict_get_try_str(qdict, "type"); GSList *machines =3D object_class_get_list(TYPE_MACHINE, false); - MachineClass *machine_class =3D find_default_machine(machines); - const char *optarg; - QemuOpts *opts; - Location loc; - - loc_push_none(&loc); - - opts =3D qemu_get_machine_opts(); - qemu_opts_loc_restore(opts); + MachineClass *machine_class; + Error *local_err =3D NULL; =20 - optarg =3D qemu_opt_get(opts, "type"); if (optarg) { - machine_class =3D machine_parse(optarg, machines); - } - - if (!machine_class) { - error_report("No machine specified, and there is no default"); - error_printf("Use -machine help to list supported machines\n"); - exit(1); + machine_class =3D find_machine(optarg, machines); + qdict_del(qdict, "type"); + if (!machine_class) { + error_setg(&local_err, "unsupported machine type"); + } + } else { + machine_class =3D find_default_machine(machines); + if (!machine_class) { + error_setg(&local_err, "No machine specified, and there is no = default"); + } } =20 - loc_pop(&loc); g_slist_free(machines); + if (local_err) { + error_append_hint(&local_err, "Use -machine help to list supported= machines\n"); + error_propagate(errp, local_err); + } return machine_class; } =20 @@ -1626,38 +1570,66 @@ static int object_parse_property_opt(Object *obj, return 0; } =20 -static int machine_set_property(void *opaque, - const char *name, const char *value, - Error **errp) +/* *Non*recursively replace underscores with dashes in QDict keys. */ +static void keyval_dashify(QDict *qdict, Error **errp) { - g_autofree char *qom_name =3D g_strdup(name); + const QDictEntry *ent, *next; char *p; =20 - for (p =3D qom_name; *p; p++) { - if (*p =3D=3D '_') { - *p =3D '-'; + for (ent =3D qdict_first(qdict); ent; ent =3D next) { + g_autofree char *new_key =3D NULL; + + next =3D qdict_next(qdict, ent); + if (!strchr(ent->key, '_')) { + continue; } + new_key =3D g_strdup(ent->key); + for (p =3D new_key; *p; p++) { + if (*p =3D=3D '_') { + *p =3D '-'; + } + } + if (qdict_haskey(qdict, new_key)) { + error_setg(errp, "Conflict between '%s' and '%s'", ent->key, n= ew_key); + return; + } + qobject_ref(ent->value); + qdict_put_obj(qdict, new_key, ent->value); + qdict_del(qdict, ent->key); } +} + +static void qemu_apply_legacy_machine_options(QDict *qdict) +{ + const char *value; + + keyval_dashify(qdict, &error_fatal); =20 /* Legacy options do not correspond to MachineState properties. */ - if (g_str_equal(qom_name, "accel")) { - return 0; - } - if (g_str_equal(qom_name, "igd-passthru")) { - object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, valu= e); - return 0; + value =3D qdict_get_try_str(qdict, "accel"); + if (value) { + accelerators =3D g_strdup(value); + qdict_del(qdict, "accel"); } - if (g_str_equal(qom_name, "kvm-shadow-mem")) { - object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, valu= e); - return 0; + + value =3D qdict_get_try_str(qdict, "igd-passthru"); + if (value) { + object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru"= , value); + qdict_del(qdict, "igd-passthru"); } - if (g_str_equal(qom_name, "kernel-irqchip")) { - object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, valu= e); - object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), qom_name, val= ue); - return 0; + + value =3D qdict_get_try_str(qdict, "kvm-shadow-mem"); + if (value) { + object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-me= m", value); + qdict_del(qdict, "kvm-shadow-mem"); } =20 - return object_parse_property_opt(opaque, name, value, "type", errp); + value =3D qdict_get_try_str(qdict, "kernel-irqchip"); + if (value) { + object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchi= p", value); + object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqch= ip", value); + qdict_del(qdict, "kernel-irqchip"); + } } =20 /* @@ -1716,16 +1688,14 @@ static bool object_create_early(const char *type) return true; } =20 -static void qemu_apply_machine_options(void) +static void qemu_apply_machine_options(QDict *qdict) { MachineClass *machine_class =3D MACHINE_GET_CLASS(current_machine); - QemuOpts *machine_opts =3D qemu_get_machine_opts(); const char *boot_order =3D NULL; const char *boot_once =3D NULL; QemuOpts *opts; =20 - qemu_opt_foreach(machine_opts, machine_set_property, current_machine, - &error_fatal); + object_set_properties_from_keyval(OBJECT(current_machine), qdict, &err= or_fatal); current_machine->ram_size =3D ram_size; current_machine->maxram_size =3D maxram_size; current_machine->ram_slots =3D ram_slots; @@ -1754,10 +1724,8 @@ static void qemu_apply_machine_options(void) current_machine->boot_once =3D boot_once; =20 if (semihosting_enabled() && !semihosting_get_argc()) { - const char *kernel_filename =3D qemu_opt_get(machine_opts, "kernel= "); - const char *kernel_cmdline =3D qemu_opt_get(machine_opts, "append"= ) ?: ""; /* fall back to the -kernel/-append */ - semihosting_arg_fallback(kernel_filename, kernel_cmdline); + semihosting_arg_fallback(current_machine->kernel_filename, current= _machine->kernel_cmdline); } } =20 @@ -1822,8 +1790,7 @@ static void qemu_create_early_backends(void) =20 /* * Note: we need to create audio and block backends before - * machine_set_property(), so machine properties can refer to - * them. + * setting machine properties, so they can be referred to. */ configure_blockdev(&bdo_queue, machine_class, snapshot); audio_init_audiodevs(); @@ -1993,16 +1960,14 @@ static void set_memory_options(MachineClass *mc) loc_pop(&loc); } =20 -static void qemu_create_machine(MachineClass *machine_class) +static void qemu_create_machine(QDict *qdict) { + MachineClass *machine_class =3D select_machine(qdict, &error_fatal); object_set_machine_compat_props(machine_class->compat_props); =20 set_memory_options(machine_class); =20 current_machine =3D MACHINE(object_new_with_class(OBJECT_CLASS(machine= _class))); - if (machine_help_func(qemu_get_machine_opts(), current_machine)) { - exit(0); - } object_property_add_child(object_get_root(), "machine", OBJECT(current_machine)); object_property_add_child(container_get(OBJECT(current_machine), @@ -2033,8 +1998,11 @@ static void qemu_create_machine(MachineClass *machin= e_class) * specified either by the configuration file or by the command line. */ if (machine_class->default_machine_opts) { - qemu_opts_set_defaults(qemu_find_opts("machine"), - machine_class->default_machine_opts, 0); + QDict *default_opts =3D + keyval_parse(machine_class->default_machine_opts, NULL, NULL, + &error_abort); + object_set_properties_from_keyval(OBJECT(current_machine), default= _opts, &error_abort); + qobject_unref(default_opts); } } =20 @@ -2056,7 +2024,8 @@ static int global_init_func(void *opaque, QemuOpts *o= pts, Error **errp) */ static bool is_qemuopts_group(const char *group) { - if (g_str_equal(group, "object")) { + if (g_str_equal(group, "object") || + g_str_equal(group, "machine")) { return false; } return true; @@ -2098,6 +2067,8 @@ static void qemu_record_config_group(const char *grou= p, QDict *dict, Error **err p_head =3D qemu_config_list(group); if (p_head) { *p_head =3D g_slist_prepend(*p_head, dict); + } else if (g_str_equal(group, "machine")) { + keyval_merge(machine_opts_dict, dict, errp); } else { abort(); } @@ -2251,13 +2222,11 @@ static int do_configure_accelerator(void *opaque, Q= emuOpts *opts, Error **errp) =20 static void configure_accelerators(const char *progname) { - const char *accelerators; bool init_failed =3D false; =20 qemu_opts_foreach(qemu_find_opts("icount"), do_configure_icount, NULL, &error_fatal); =20 - accelerators =3D qemu_opt_get(qemu_get_machine_opts(), "accel"); if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { char **accel_list, **tmp; =20 @@ -2345,12 +2314,11 @@ static void create_default_memdev(MachineState *ms,= const char *path) &error_fatal); } =20 -static void qemu_validate_options(void) +static void qemu_validate_options(const QDict *machine_opts) { - QemuOpts *machine_opts =3D qemu_get_machine_opts(); - const char *kernel_filename =3D qemu_opt_get(machine_opts, "kernel"); - const char *initrd_filename =3D qemu_opt_get(machine_opts, "initrd"); - const char *kernel_cmdline =3D qemu_opt_get(machine_opts, "append"); + const char *kernel_filename =3D qdict_get_try_str(machine_opts, "kerne= l"); + const char *initrd_filename =3D qdict_get_try_str(machine_opts, "initr= d"); + const char *kernel_cmdline =3D qdict_get_try_str(machine_opts, "append= "); =20 if (kernel_filename =3D=3D NULL) { if (kernel_cmdline !=3D NULL) { @@ -2647,7 +2615,6 @@ void qemu_init(int argc, char **argv, char **envp) qemu_add_opts(&qemu_trace_opts); qemu_plugin_add_opts(); qemu_add_opts(&qemu_option_rom_opts); - qemu_add_opts(&qemu_machine_opts); qemu_add_opts(&qemu_accel_opts); qemu_add_opts(&qemu_mem_opts); qemu_add_opts(&qemu_smp_opts); @@ -2687,6 +2654,7 @@ void qemu_init(int argc, char **argv, char **envp) } } =20 + machine_opts_dict =3D qdict_new(); if (userconfig) { qemu_read_default_config_file(&error_fatal); } @@ -2776,8 +2744,7 @@ void qemu_init(int argc, char **argv, char **envp) parse_display(optarg); break; case QEMU_OPTION_nographic: - olist =3D qemu_find_opts("machine"); - qemu_opts_parse_noisily(olist, "graphics=3Doff", false); + qdict_put_str(machine_opts_dict, "graphics", "off"); nographic =3D true; dpy.type =3D DISPLAY_TYPE_NONE; break; @@ -2801,16 +2768,16 @@ void qemu_init(int argc, char **argv, char **envp) } break; case QEMU_OPTION_kernel: - qemu_opts_set(qemu_find_opts("machine"), "kernel", optarg,= &error_abort); + qdict_put_str(machine_opts_dict, "kernel", optarg); break; case QEMU_OPTION_initrd: - qemu_opts_set(qemu_find_opts("machine"), "initrd", optarg,= &error_abort); + qdict_put_str(machine_opts_dict, "initrd", optarg); break; case QEMU_OPTION_append: - qemu_opts_set(qemu_find_opts("machine"), "append", optarg,= &error_abort); + qdict_put_str(machine_opts_dict, "append", optarg); break; case QEMU_OPTION_dtb: - qemu_opts_set(qemu_find_opts("machine"), "dtb", optarg, &e= rror_abort); + qdict_put_str(machine_opts_dict, "dtb", optarg); break; case QEMU_OPTION_cdrom: drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); @@ -2920,7 +2887,7 @@ void qemu_init(int argc, char **argv, char **envp) } break; case QEMU_OPTION_bios: - qemu_opts_set(qemu_find_opts("machine"), "firmware", optar= g, &error_abort); + qdict_put_str(machine_opts_dict, "firmware", optarg); break; case QEMU_OPTION_singlestep: singlestep =3D 1; @@ -3183,17 +3150,20 @@ void qemu_init(int argc, char **argv, char **envp) preconfig_requested =3D true; break; case QEMU_OPTION_enable_kvm: - olist =3D qemu_find_opts("machine"); - qemu_opts_parse_noisily(olist, "accel=3Dkvm", false); + qdict_put_str(machine_opts_dict, "accel", "kvm"); break; case QEMU_OPTION_M: case QEMU_OPTION_machine: - olist =3D qemu_find_opts("machine"); - opts =3D qemu_opts_parse_noisily(olist, optarg, true); - if (!opts) { - exit(1); + { + bool help; + + keyval_parse_into(machine_opts_dict, optarg, "type", &= help, &error_fatal); + if (help) { + machine_help_func(machine_opts_dict); + exit(EXIT_SUCCESS); + } + break; } - break; case QEMU_OPTION_accel: accel_opts =3D qemu_opts_parse_noisily(qemu_find_opts("acc= el"), optarg, true); @@ -3220,14 +3190,12 @@ void qemu_init(int argc, char **argv, char **envp) } break; case QEMU_OPTION_usb: - olist =3D qemu_find_opts("machine"); - qemu_opts_parse_noisily(olist, "usb=3Don", false); + qdict_put_str(machine_opts_dict, "usb", "on"); break; case QEMU_OPTION_usbdevice: error_report("'-usbdevice' is deprecated, please use " "'-device usb-...' instead"); - olist =3D qemu_find_opts("machine"); - qemu_opts_parse_noisily(olist, "usb=3Don", false); + qdict_put_str(machine_opts_dict, "usb", "on"); add_device_config(DEV_USB, optarg); break; case QEMU_OPTION_device: @@ -3246,12 +3214,10 @@ void qemu_init(int argc, char **argv, char **envp) vnc_parse(optarg, &error_fatal); break; case QEMU_OPTION_no_acpi: - olist =3D qemu_find_opts("machine"); - qemu_opts_parse_noisily(olist, "acpi=3Doff", false); + qdict_put_str(machine_opts_dict, "acpi", "off"); break; case QEMU_OPTION_no_hpet: - olist =3D qemu_find_opts("machine"); - qemu_opts_parse_noisily(olist, "hpet=3Doff", false); + qdict_put_str(machine_opts_dict, "hpet", "off"); break; case QEMU_OPTION_no_reboot: no_reboot =3D 1; @@ -3515,7 +3481,7 @@ void qemu_init(int argc, char **argv, char **envp) */ loc_set_none(); =20 - qemu_validate_options(); + qemu_validate_options(machine_opts_dict); qemu_process_sugar_options(); =20 /* @@ -3535,7 +3501,7 @@ void qemu_init(int argc, char **argv, char **envp) =20 configure_rtc(qemu_find_opts_singleton("rtc")); =20 - qemu_create_machine(select_machine()); + qemu_create_machine(machine_opts_dict); =20 suspend_mux_open(); =20 @@ -3543,12 +3509,14 @@ void qemu_init(int argc, char **argv, char **envp) qemu_create_default_devices(); qemu_create_early_backends(); =20 - qemu_apply_machine_options(); + qemu_apply_legacy_machine_options(machine_opts_dict); + qemu_apply_machine_options(machine_opts_dict); + qobject_unref(machine_opts_dict); phase_advance(PHASE_MACHINE_CREATED); =20 /* * Note: uses machine properties such as kernel-irqchip, must run - * after machine_set_property(). + * after qemu_apply_machine_options. */ configure_accelerators(argv[0]); phase_advance(PHASE_ACCEL_CREATED); --=20 2.26.2