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[176.131.220.199]) by smtp.gmail.com with ESMTPSA id l4-20020a5d5604000000b0032f78feb826sm9106145wrv.104.2023.11.06.03.07.56 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 06 Nov 2023 03:07:59 -0800 (PST) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: kvm@vger.kernel.org, qemu-s390x@nongnu.org, qemu-block@nongnu.org, qemu-riscv@nongnu.org, qemu-ppc@nongnu.org, qemu-arm@nongnu.org, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Richard Henderson , Eduardo Habkost , Marcel Apfelbaum , Yanan Wang , Peter Maydell , Michael Rolnik , "Edgar E. Iglesias" , Brian Cain , Song Gao , Laurent Vivier , Stafford Horne , Palmer Dabbelt , Alistair Francis , Bin Meng , Weiwei Li , Daniel Henrique Barboza , Liu Zhiwei , Yoshinori Sato , Bastian Koppelmann , Max Filippov Subject: [PULL 38/60] hw/cpu: Call object_class_is_abstract() once in cpu_class_by_name() Date: Mon, 6 Nov 2023 12:03:10 +0100 Message-ID: <20231106110336.358-39-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231106110336.358-1-philmd@linaro.org> References: <20231106110336.358-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::42f; envelope-from=philmd@linaro.org; helo=mail-wr1-x42f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Let CPUClass::class_by_name() handlers to return abstract classes, and filter them once in the public cpu_class_by_name() method. Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Message-Id: <20230908112235.75914-3-philmd@linaro.org> --- include/hw/core/cpu.h | 7 ++++--- hw/core/cpu-common.c | 14 +++++++++++--- target/alpha/cpu.c | 3 +-- target/arm/cpu.c | 3 +-- target/avr/cpu.c | 3 +-- target/cris/cpu.c | 3 +-- target/hexagon/cpu.c | 3 +-- target/loongarch/cpu.c | 3 +-- target/m68k/cpu.c | 3 +-- target/openrisc/cpu.c | 3 +-- target/riscv/cpu.c | 3 +-- target/rx/cpu.c | 6 +----- target/sh4/cpu.c | 3 --- target/tricore/cpu.c | 3 +-- target/xtensa/cpu.c | 3 +-- 15 files changed, 27 insertions(+), 36 deletions(-) diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index 6373aa4501..5d6f8dca43 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -102,7 +102,7 @@ struct SysemuCPUOps; /** * CPUClass: * @class_by_name: Callback to map -cpu command line model name to an - * instantiatable CPU type. + * instantiatable CPU type. * @parse_features: Callback to parse command line arguments. * @reset_dump_flags: #CPUDumpFlags to use for reset logging. * @has_work: Callback for checking if there is work to do. @@ -772,9 +772,10 @@ void cpu_reset(CPUState *cpu); * @typename: The CPU base type. * @cpu_model: The model string without any parameters. * - * Looks up a CPU #ObjectClass matching name @cpu_model. + * Looks up a concrete CPU #ObjectClass matching name @cpu_model. * - * Returns: A #CPUClass or %NULL if not matching class is found. + * Returns: A concrete #CPUClass or %NULL if no matching class is found + * or if the matching class is abstract. */ ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model); diff --git a/hw/core/cpu-common.c b/hw/core/cpu-common.c index baa6d28b64..d4112b8919 100644 --- a/hw/core/cpu-common.c +++ b/hw/core/cpu-common.c @@ -146,10 +146,18 @@ static bool cpu_common_has_work(CPUState *cs) ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model) { - CPUClass *cc = CPU_CLASS(object_class_by_name(typename)); + ObjectClass *oc; + CPUClass *cc; - assert(cpu_model && cc->class_by_name); - return cc->class_by_name(cpu_model); + oc = object_class_by_name(typename); + cc = CPU_CLASS(oc); + assert(cc->class_by_name); + assert(cpu_model); + oc = cc->class_by_name(cpu_model); + if (oc == NULL || object_class_is_abstract(oc)) { + return NULL; + } + return oc; } static void cpu_common_parse_features(const char *typename, char *features, diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c index fae2cb6ec7..39cf841b3e 100644 --- a/target/alpha/cpu.c +++ b/target/alpha/cpu.c @@ -126,8 +126,7 @@ static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model) int i; oc = object_class_by_name(cpu_model); - if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL && - !object_class_is_abstract(oc)) { + if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL) { return oc; } diff --git a/target/arm/cpu.c b/target/arm/cpu.c index df6496b019..25e9d2ae7b 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -2401,8 +2401,7 @@ static ObjectClass *arm_cpu_class_by_name(const char *cpu_model) oc = object_class_by_name(typename); g_strfreev(cpuname); g_free(typename); - if (!oc || !object_class_dynamic_cast(oc, TYPE_ARM_CPU) || - object_class_is_abstract(oc)) { + if (!oc || !object_class_dynamic_cast(oc, TYPE_ARM_CPU)) { return NULL; } return oc; diff --git a/target/avr/cpu.c b/target/avr/cpu.c index 14d8b9d1f0..44de1e18d1 100644 --- a/target/avr/cpu.c +++ b/target/avr/cpu.c @@ -157,8 +157,7 @@ static ObjectClass *avr_cpu_class_by_name(const char *cpu_model) ObjectClass *oc; oc = object_class_by_name(cpu_model); - if (object_class_dynamic_cast(oc, TYPE_AVR_CPU) == NULL || - object_class_is_abstract(oc)) { + if (object_class_dynamic_cast(oc, TYPE_AVR_CPU) == NULL) { oc = NULL; } return oc; diff --git a/target/cris/cpu.c b/target/cris/cpu.c index be4a44c218..675b73ac04 100644 --- a/target/cris/cpu.c +++ b/target/cris/cpu.c @@ -95,8 +95,7 @@ static ObjectClass *cris_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(CRIS_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_CRIS_CPU) || - object_class_is_abstract(oc))) { + if (oc != NULL && !object_class_dynamic_cast(oc, TYPE_CRIS_CPU)) { oc = NULL; } return oc; diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c index 1adc11b713..9d1ffc3b4b 100644 --- a/target/hexagon/cpu.c +++ b/target/hexagon/cpu.c @@ -63,8 +63,7 @@ static ObjectClass *hexagon_cpu_class_by_name(const char *cpu_model) oc = object_class_by_name(typename); g_strfreev(cpuname); g_free(typename); - if (!oc || !object_class_dynamic_cast(oc, TYPE_HEXAGON_CPU) || - object_class_is_abstract(oc)) { + if (!oc || !object_class_dynamic_cast(oc, TYPE_HEXAGON_CPU)) { return NULL; } return oc; diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index ef1bf89dac..06d1b9bb95 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -648,8 +648,7 @@ static ObjectClass *loongarch_cpu_class_by_name(const char *cpu_model) } } - if (object_class_dynamic_cast(oc, TYPE_LOONGARCH_CPU) - && !object_class_is_abstract(oc)) { + if (object_class_dynamic_cast(oc, TYPE_LOONGARCH_CPU)) { return oc; } return NULL; diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c index 538d9473c2..11c7e0a790 100644 --- a/target/m68k/cpu.c +++ b/target/m68k/cpu.c @@ -111,8 +111,7 @@ static ObjectClass *m68k_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(M68K_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (oc != NULL && (object_class_dynamic_cast(oc, TYPE_M68K_CPU) == NULL || - object_class_is_abstract(oc))) { + if (oc != NULL && object_class_dynamic_cast(oc, TYPE_M68K_CPU) == NULL) { return NULL; } return oc; diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c index f5a3d5273b..1173260017 100644 --- a/target/openrisc/cpu.c +++ b/target/openrisc/cpu.c @@ -164,8 +164,7 @@ static ObjectClass *openrisc_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(OPENRISC_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_OPENRISC_CPU) || - object_class_is_abstract(oc))) { + if (oc != NULL && !object_class_dynamic_cast(oc, TYPE_OPENRISC_CPU)) { return NULL; } return oc; diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index ac4a6c7eec..63624e8b76 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -636,8 +636,7 @@ static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model) oc = object_class_by_name(typename); g_strfreev(cpuname); g_free(typename); - if (!oc || !object_class_dynamic_cast(oc, TYPE_RISCV_CPU) || - object_class_is_abstract(oc)) { + if (!oc || !object_class_dynamic_cast(oc, TYPE_RISCV_CPU)) { return NULL; } return oc; diff --git a/target/rx/cpu.c b/target/rx/cpu.c index 4d0d3a0c8c..9cc9d9d15e 100644 --- a/target/rx/cpu.c +++ b/target/rx/cpu.c @@ -111,16 +111,12 @@ static ObjectClass *rx_cpu_class_by_name(const char *cpu_model) char *typename; oc = object_class_by_name(cpu_model); - if (oc != NULL && object_class_dynamic_cast(oc, TYPE_RX_CPU) != NULL && - !object_class_is_abstract(oc)) { + if (oc != NULL && object_class_dynamic_cast(oc, TYPE_RX_CPU) != NULL) { return oc; } typename = g_strdup_printf(RX_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (oc != NULL && object_class_is_abstract(oc)) { - oc = NULL; - } return oc; } diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c index 788e41fea6..a8ec98b134 100644 --- a/target/sh4/cpu.c +++ b/target/sh4/cpu.c @@ -152,9 +152,6 @@ static ObjectClass *superh_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(SUPERH_CPU_TYPE_NAME("%s"), s); oc = object_class_by_name(typename); - if (oc != NULL && object_class_is_abstract(oc)) { - oc = NULL; - } out: g_free(s); diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c index 5ca666ee12..034e01c189 100644 --- a/target/tricore/cpu.c +++ b/target/tricore/cpu.c @@ -132,8 +132,7 @@ static ObjectClass *tricore_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(TRICORE_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (!oc || !object_class_dynamic_cast(oc, TYPE_TRICORE_CPU) || - object_class_is_abstract(oc)) { + if (!oc || !object_class_dynamic_cast(oc, TYPE_TRICORE_CPU)) { return NULL; } return oc; diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c index ea1dae7390..e20fe87bf2 100644 --- a/target/xtensa/cpu.c +++ b/target/xtensa/cpu.c @@ -141,8 +141,7 @@ static ObjectClass *xtensa_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(XTENSA_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (oc == NULL || !object_class_dynamic_cast(oc, TYPE_XTENSA_CPU) || - object_class_is_abstract(oc)) { + if (oc == NULL || !object_class_dynamic_cast(oc, TYPE_XTENSA_CPU)) { return NULL; } return oc;