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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::830; envelope-from=dinahbaum123@gmail.com; helo=mail-qt1-x830.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1678788160613100001 Content-Type: text/plain; charset="utf-8" Change parsing of -cpu argument to allow -cpu cpu,help to print options for the CPU type similar to how the '-device' option works. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1480 Signed-off-by: Dinah Baum --- cpu.c | 41 +++++++++++++++++++++++++++++++++++++++ include/exec/cpu-common.h | 2 ++ include/qapi/qmp/qdict.h | 2 ++ qemu-options.hx | 7 ++++--- qobject/qdict.c | 5 +++++ softmmu/vl.c | 36 ++++++++++++++++++++++++++++++++-- 6 files changed, 88 insertions(+), 5 deletions(-) diff --git a/cpu.c b/cpu.c index c09edc4556..fe33c51061 100644 --- a/cpu.c +++ b/cpu.c @@ -23,7 +23,9 @@ #include "exec/target_page.h" #include "hw/qdev-core.h" #include "hw/qdev-properties.h" +#include "qemu/cutils.h" #include "qemu/error-report.h" +#include "qemu/qemu-print.h" #include "migration/vmstate.h" #ifdef CONFIG_USER_ONLY #include "qemu.h" @@ -42,6 +44,8 @@ #include "hw/core/accel-cpu.h" #include "trace/trace-root.h" #include "qemu/accel.h" +#include "qapi/qmp/qdict.h" +#include "qapi/qmp/qobject.h" =20 uintptr_t qemu_host_page_size; intptr_t qemu_host_page_mask; @@ -311,6 +315,43 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(C= puModelExpansionType type, return get_cpu_model_expansion_info(type, model, errp); } =20 +void list_cpu_model_expansion(CpuModelExpansionType type, + CpuModelInfo *model, + Error **errp) +{ + CpuModelExpansionInfo *expansion_info; + QDict *qdict; + QDictEntry *qdict_entry; + const char *key; + QObject *obj; + QType q_type; + GPtrArray *array; + int i; + const char *type_name; + + expansion_info =3D get_cpu_model_expansion_info(type, model, errp); + if (expansion_info) { + qdict =3D qobject_to(QDict, expansion_info->model->props); + if (qdict) { + qemu_printf("%s features:\n", model->name); + array =3D g_ptr_array_new(); + for (qdict_entry =3D (QDictEntry *)qdict_first(qdict); qdict_e= ntry; + qdict_entry =3D (QDictEntry *)qdict_next(qdict, qdict_ent= ry)) { + g_ptr_array_add(array, qdict_entry); + } + g_ptr_array_sort(array, (GCompareFunc)dict_key_compare); + for (i =3D 0; i < array->len; i++) { + qdict_entry =3D array->pdata[i]; + key =3D qdict_entry_key(qdict_entry); + obj =3D qdict_get(qdict, key); + q_type =3D qobject_type(obj); + type_name =3D QType_str(q_type); + qemu_printf(" %s=3D<%s>\n", key, type_name); + } + } + } +} + #if defined(CONFIG_USER_ONLY) void tb_invalidate_phys_addr(target_ulong addr) { diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h index ec6024dfde..8fc05307ad 100644 --- a/include/exec/cpu-common.h +++ b/include/exec/cpu-common.h @@ -174,5 +174,7 @@ typedef void (*cpu_model_expansion_func)(CpuModelExpans= ionType type, CpuModelExpansionInfo *get_cpu_model_expansion_info(CpuModelExpansionType = type, CpuModelInfo *model, Error **errp); +void list_cpu_model_expansion(CpuModelExpansionType type, + CpuModelInfo *model, Error **errp); =20 #endif /* CPU_COMMON_H */ diff --git a/include/qapi/qmp/qdict.h b/include/qapi/qmp/qdict.h index 82e90fc072..1ff9523a13 100644 --- a/include/qapi/qmp/qdict.h +++ b/include/qapi/qmp/qdict.h @@ -68,4 +68,6 @@ const char *qdict_get_try_str(const QDict *qdict, const c= har *key); =20 QDict *qdict_clone_shallow(const QDict *src); =20 +int dict_key_compare(QDictEntry **entry1, QDictEntry **entry2); + #endif /* QDICT_H */ diff --git a/qemu-options.hx b/qemu-options.hx index d42f60fb91..d5284b9330 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -169,11 +169,12 @@ SRST ERST =20 DEF("cpu", HAS_ARG, QEMU_OPTION_cpu, - "-cpu cpu select CPU ('-cpu help' for list)\n", QEMU_ARCH_ALL) + "-cpu cpu select CPU ('-cpu help' for list)\n" + " use '-cpu cpu,help' to print possible properties\n", = QEMU_ARCH_ALL) SRST ``-cpu model`` - Select CPU model (``-cpu help`` for list and additional feature - selection) + Select CPU model (``-cpu help`` and ``-cpu cpu,help``) for list and ad= ditional feature + selection ERST =20 DEF("accel", HAS_ARG, QEMU_OPTION_accel, diff --git a/qobject/qdict.c b/qobject/qdict.c index 8faff230d3..31407e62f6 100644 --- a/qobject/qdict.c +++ b/qobject/qdict.c @@ -447,3 +447,8 @@ void qdict_unref(QDict *q) { qobject_unref(q); } + +int dict_key_compare(QDictEntry **entry1, QDictEntry **entry2) +{ + return g_strcmp0(qdict_entry_key(*entry1), qdict_entry_key(*entry2)); +} diff --git a/softmmu/vl.c b/softmmu/vl.c index 3340f63c37..a9d70e559e 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -500,6 +500,15 @@ static QemuOptsList qemu_action_opts =3D { }, }; =20 +static QemuOptsList qemu_cpu_opts =3D { + .name =3D "cpu", + .implied_opt_name =3D "cpu", + .head =3D QTAILQ_HEAD_INITIALIZER(qemu_cpu_opts.head), + .desc =3D { + { /* end of list */ } + }, +}; + const char *qemu_get_vm_name(void) { return qemu_name; @@ -1147,6 +1156,26 @@ static int device_init_func(void *opaque, QemuOpts *= opts, Error **errp) return 0; } =20 +static int cpu_help_func(void *opaque, QemuOpts *opts, Error **errp) +{ + CpuModelInfo *model; + + if (cpu_option && is_help_option(cpu_option)) { + list_cpus(cpu_option); + return 1; + } + + if (!cpu_option || !qemu_opt_has_help_opt(opts)) { + return 0; + } + + model =3D g_new0(CpuModelInfo, 1); + model->name =3D (char *)qemu_opt_get(opts, "cpu"); + /* TODO: handle other expansion cases */ + list_cpu_model_expansion(CPU_MODEL_EXPANSION_TYPE_FULL, model, errp); + return 1; +} + static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) { Error *local_err =3D NULL; @@ -2431,8 +2460,9 @@ static void qemu_process_help_options(void) * type and the user did not specify one, so that the user doesn't need * to say '-cpu help -machine something'. */ - if (cpu_option && is_help_option(cpu_option)) { - list_cpus(cpu_option); + Error *errp =3D NULL; + if (qemu_opts_foreach(qemu_find_opts("cpu"), + cpu_help_func, NULL, &errp)) { exit(0); } =20 @@ -2672,6 +2702,7 @@ void qemu_init(int argc, char **argv) qemu_add_opts(&qemu_semihosting_config_opts); qemu_add_opts(&qemu_fw_cfg_opts); qemu_add_opts(&qemu_action_opts); + qemu_add_opts(&qemu_cpu_opts); module_call_init(MODULE_INIT_OPTS); =20 error_init(argv[0]); @@ -2723,6 +2754,7 @@ void qemu_init(int argc, char **argv) switch(popt->index) { case QEMU_OPTION_cpu: /* hw initialization will check this */ + qemu_opts_parse_noisily(qemu_find_opts("cpu"), optarg, tru= e); cpu_option =3D optarg; break; case QEMU_OPTION_hda: --=20 2.30.2