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[212.78.193.212]) by smtp.gmail.com with ESMTPSA id c26-20020a170906341a00b00993470682e5sm6646928ejb.32.2023.09.18.09.04.22 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 18 Sep 2023 09:04:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1695053064; x=1695657864; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=s5SThQE8VrEigaiBVVD1aPn+S9Eqq7fLgyN+q+7eopw=; b=iN3Zjls1wmhzBLJG3Osd6MYLOiBOmzWia6GDdHQDWIuLhxbH38pKbhfYlhljmS80HY T4zv0c869UyNBAuMeQa63lgwkWjovHlQvWdTrFyzv1kJKK9EwhaGdcx1gYFX5goPOmpl fdHq8TLPrYt7JVYvreBsMBli0MVv9n8ncjppXU8kVK2NZvi149SdO+JiFAsMcseBRjnE F4BewZrCG5+V08g3A2Pww6b1ZPgWHNPuxl5d765ilVlRqZG5SsDBgMaOdOklBBYe+Dkf d8+krUQdz6butreujCzQgCuLi1gwnHGMsHhPV1Ie2+5ee7G9Q1gpqTYgODRGDphrmWL6 4HWg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695053064; x=1695657864; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=s5SThQE8VrEigaiBVVD1aPn+S9Eqq7fLgyN+q+7eopw=; b=UyZhM77Hs9HArb6H8x3K6QXyz/T2Nce2vpnWRsvUvRvwXgFAEuYqVX4r/YgXrX/DVj nzJAE0EssMwyCdD04w5Krk8pzIAdvehpWaycjQRwtUG34xrKjE4Tt5aLeJYCpAyEPoOR M4uYyx4q0y9t4RnT4wRe5QPKX0FFjf13j9ecYSmFjb3QJAZdVF5UABi9y827taCdYMQs R1QeV1cGsAkPYp4ZgFcNbqCYFlhrLPYAHUb6cNIdJBtXiFe28xyrMpMvj0v/erIlDjo6 secBl59l+DfVG7MjTwu21KX1aGrF95gfLZ3h+kFlEwe1sHBiEiUrxfw35WLcmqw1QKOC tlyw== X-Gm-Message-State: AOJu0YzKqEGa90I88KQxFr0Zs2Bt5Vg9778S2Eo9YE5ld06bbDi2f9yC lD93n2X6/LJTnSLZgWntRHkK5t8jtKj+NhI43aAGxI1L X-Google-Smtp-Source: AGHT+IFdhAv8NMQe3eDFfz6fXbmFXmpOAUlZ51p/ozjG+nSdvaZT7LZnHlxk4GI+z0N+RInhKW7YXQ== X-Received: by 2002:a17:906:768f:b0:9ad:fb23:21cf with SMTP id o15-20020a170906768f00b009adfb2321cfmr4715553ejm.15.1695053064161; Mon, 18 Sep 2023 09:04:24 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Laurent Vivier , Paolo Bonzini , Max Filippov , David Hildenbrand , Peter Xu , Anton Johansson , Peter Maydell , kvm@vger.kernel.org, Marek Vasut , David Gibson , Brian Cain , Yoshinori Sato , "Edgar E . Iglesias" , Claudio Fontana , Daniel Henrique Barboza , Artyom Tarasenko , Marcelo Tosatti , qemu-ppc@nongnu.org, Liu Zhiwei , Aurelien Jarno , Ilya Leoshkevich , Daniel Henrique Barboza , Bastian Koppelmann , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Alistair Francis , Alessandro Di Federico , Song Gao , Marcel Apfelbaum , Chris Wulff , "Michael S. Tsirkin" , Alistair Francis , Fabiano Rosas , qemu-s390x@nongnu.org, Yanan Wang , Luc Michel , Weiwei Li , Bin Meng , Stafford Horne , Xiaojuan Yang , "Daniel P . Berrange" , Thomas Huth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-arm@nongnu.org, Jiaxun Yang , Richard Henderson , Aleksandar Rikalo , Bernhard Beschow , Mark Cave-Ayland , qemu-riscv@nongnu.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= , Nicholas Piggin , Greg Kurz , Michael Rolnik , Eduardo Habkost , Markus Armbruster , Palmer Dabbelt Subject: [PATCH 16/22] target/arm: Extract verify_accel_features() from cpu_realize() Date: Mon, 18 Sep 2023 18:02:49 +0200 Message-ID: <20230918160257.30127-17-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230918160257.30127-1-philmd@linaro.org> References: <20230918160257.30127-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=2a00:1450:4864:20::62c; envelope-from=philmd@linaro.org; helo=mail-ej1-x62c.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 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1695053485058100003 When looking at the arm_cpu_realizefn() method, most of the code run before the cpu_exec_realizefn() call checks whether the requested CPU features are compatible with the requested accelerator. Extract this code to a dedicated handler matching our recently added CPUClass::verify_accel_features() handler. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- target/arm/cpu.c | 41 ++++++++++++++++++++++++----------------- 1 file changed, 24 insertions(+), 17 deletions(-) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 46d3f70d63..a551383fd3 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -1675,19 +1675,10 @@ void arm_cpu_finalize_features(ARMCPU *cpu, Error *= *errp) } } =20 -static void arm_cpu_realizefn(DeviceState *dev, Error **errp) +static bool arm_cpu_verify_accel_features(CPUState *cs, Error **errp) { - CPUState *cs =3D CPU(dev); - ARMCPU *cpu =3D ARM_CPU(dev); - ARMCPUClass *acc =3D ARM_CPU_GET_CLASS(dev); + ARMCPU *cpu =3D ARM_CPU(cs); CPUARMState *env =3D &cpu->env; - int pagebits; - Error *local_err =3D NULL; - - /* Use pc-relative instructions in system-mode */ -#ifndef CONFIG_USER_ONLY - cs->tcg_cflags |=3D CF_PCREL; -#endif =20 /* If we needed to query the host kernel for the CPU features * then it's possible that might have failed in the initfn, but @@ -1699,10 +1690,13 @@ static void arm_cpu_realizefn(DeviceState *dev, Err= or **errp) } else { error_setg(errp, "Failed to retrieve host CPU features"); } - return; + return false; } =20 #ifndef CONFIG_USER_ONLY + /* Use pc-relative instructions in system-mode */ + cs->tcg_cflags |=3D CF_PCREL; + /* The NVIC and M-profile CPU are two halves of a single piece of * hardware; trying to use one without the other is a command line * error and will result in segfaults if not caught here. @@ -1710,12 +1704,12 @@ static void arm_cpu_realizefn(DeviceState *dev, Err= or **errp) if (arm_feature(env, ARM_FEATURE_M)) { if (!env->nvic) { error_setg(errp, "This board cannot be used with Cortex-M CPUs= "); - return; + return false; } } else { if (env->nvic) { error_setg(errp, "This board can only be used with Cortex-M CP= Us"); - return; + return false; } } =20 @@ -1733,23 +1727,35 @@ static void arm_cpu_realizefn(DeviceState *dev, Err= or **errp) error_setg(errp, "Cannot enable %s when using an M-profile guest CPU= ", current_accel_name()); - return; + return false; } if (cpu->has_el3) { error_setg(errp, "Cannot enable %s when guest CPU has EL3 enabled", current_accel_name()); - return; + return false; } if (cpu->tag_memory) { error_setg(errp, "Cannot enable %s when guest CPUs has MTE enabled", current_accel_name()); - return; + return false; } } #endif =20 + return true; +} + +static void arm_cpu_realizefn(DeviceState *dev, Error **errp) +{ + CPUState *cs =3D CPU(dev); + ARMCPU *cpu =3D ARM_CPU(dev); + ARMCPUClass *acc =3D ARM_CPU_GET_CLASS(dev); + CPUARMState *env =3D &cpu->env; + int pagebits; + Error *local_err =3D NULL; + cpu_exec_realizefn(cs, &local_err); if (local_err !=3D NULL) { error_propagate(errp, local_err); @@ -2383,6 +2389,7 @@ static void arm_cpu_class_init(ObjectClass *oc, void = *data) &acc->parent_phases); =20 cc->class_by_name =3D arm_cpu_class_by_name; + cc->verify_accel_features =3D arm_cpu_verify_accel_features; cc->has_work =3D arm_cpu_has_work; cc->dump_state =3D arm_cpu_dump_state; cc->set_pc =3D arm_cpu_set_pc; --=20 2.41.0