From nobody Tue Feb 10 06:42:56 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1611406049; cv=none; d=zohomail.com; s=zohoarc; b=hIGC+Vpz7bQMmT+uAYGJdhkX9C1jI+lxRiSHk46H4YIn8yVg5SvYichgF5dbF9kVaxgVpP5YX+ri3/S11F7kL2eTqVjAXjABOc+8ZIKNvUQTWpc2KdAbENrDCUpHQEYycRy5M860TcJQIwekhBZ1J25ktQCriTXK+I7BtwXlslo= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1611406049; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=3yN84LGdNg6yvKllqOdcfe9gXdNrZTSWwWfszqFQ+UU=; b=FeCF1uhMHzCMfcUG+j1moixK+vfRkQu8K4BkjzLHrbduW34Zkeh7Nv+wBUDGyYpqWihZDfTHxeC/+Bqp3JuV4ty0+QOCorXx/N4GF07lxZaDbFcaU4KE2G/5DoMEum76f6wAcRWlgpHF5h3FJwMwrvrGMAqr3CmqLErrlzv/0ec= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1611406049868594.2837310860054; Sat, 23 Jan 2021 04:47:29 -0800 (PST) Received: from localhost ([::1]:47240 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l3IK7-0008Ao-Of for importer@patchew.org; Sat, 23 Jan 2021 07:47:27 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39246) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l3Hxy-0003a1-93 for qemu-devel@nongnu.org; Sat, 23 Jan 2021 07:24:34 -0500 Received: from mx2.suse.de ([195.135.220.15]:59790) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l3Hxv-000772-F6 for qemu-devel@nongnu.org; Sat, 23 Jan 2021 07:24:33 -0500 Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id D8EF3AF30; Sat, 23 Jan 2021 12:24:18 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de From: Claudio Fontana To: Paolo Bonzini , Thomas Huth , Richard Henderson , Stefano Stabellini , Wenchao Wang , Roman Bolshakov , Sunil Muthuswamy , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v13 22/22] accel: introduce new accessor functions Date: Sat, 23 Jan 2021 13:23:59 +0100 Message-Id: <20210123122359.4147-23-cfontana@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210123122359.4147-1-cfontana@suse.de> References: <20210123122359.4147-1-cfontana@suse.de> MIME-Version: 1.0 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=195.135.220.15; envelope-from=cfontana@suse.de; helo=mx2.suse.de X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, 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: Laurent Vivier , Peter Maydell , Eduardo Habkost , Paul Durrant , Jason Wang , Marcelo Tosatti , qemu-devel@nongnu.org, Peter Xu , Dario Faggioli , Cameron Esfahani , haxm-team@intel.com, Claudio Fontana , Anthony Perard , Bruce Rogers , Olaf Hering , "Emilio G . Cota" , Colin Xu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" avoid open coding the accesses to cpu->accel_cpu interfaces, and instead introduce: accel_cpu_instance_init, accel_cpu_realizefn to be used by the targets/ initfn code, and by cpu_exec_realizefn respectively. Add warnings about the use of target-specific headers. Signed-off-by: Claudio Fontana --- include/hw/core/accel-cpu.h | 11 +++++++---- include/qemu/accel.h | 13 +++++++++++++ accel/accel-common.c | 19 +++++++++++++++++++ cpu.c | 6 +----- target/i386/cpu.c | 9 ++------- 5 files changed, 42 insertions(+), 16 deletions(-) diff --git a/include/hw/core/accel-cpu.h b/include/hw/core/accel-cpu.h index 246b3e2fcb..2edecd026a 100644 --- a/include/hw/core/accel-cpu.h +++ b/include/hw/core/accel-cpu.h @@ -1,5 +1,6 @@ /* * Accelerator interface, specializes CPUClass + * This header is used only by target-specific code. * * Copyright 2020 SUSE LLC * @@ -11,10 +12,12 @@ #define ACCEL_CPU_H =20 /* - * these defines cannot be in cpu.h, because we are using - * CPU_RESOLVING_TYPE here. - * Use this header to define your accelerator-specific - * cpu-specific accelerator interfaces. + * This header is used to define new accelerator-specific target-specific + * accelerator cpu subclasses. + * It uses CPU_RESOLVING_TYPE, so this is clearly target-specific. + * + * Do not try to use for any other purpose than the implementation of new + * subclasses in target/, or the accel implementation itself in accel/ */ =20 #define TYPE_ACCEL_CPU "accel-" CPU_RESOLVING_TYPE diff --git a/include/qemu/accel.h b/include/qemu/accel.h index b9d6d69eb8..da0c8ab523 100644 --- a/include/qemu/accel.h +++ b/include/qemu/accel.h @@ -78,4 +78,17 @@ int accel_init_machine(AccelState *accel, MachineState *= ms); void accel_setup_post(MachineState *ms); #endif /* !CONFIG_USER_ONLY */ =20 +/** + * accel_cpu_instance_init: + * @cpu: The CPU that needs to do accel-specific object initializations. + */ +void accel_cpu_instance_init(CPUState *cpu); + +/** + * accel_cpu_realizefn: + * @cpu: The CPU that needs to call accel-specific cpu realization. + * @errp: currently unused. + */ +void accel_cpu_realizefn(CPUState *cpu, Error **errp); + #endif /* QEMU_ACCEL_H */ diff --git a/accel/accel-common.c b/accel/accel-common.c index 9901b0531c..0f6fb4fb66 100644 --- a/accel/accel-common.c +++ b/accel/accel-common.c @@ -89,6 +89,25 @@ void accel_init_interfaces(AccelClass *ac) accel_init_cpu_interfaces(ac); } =20 +void accel_cpu_instance_init(CPUState *cpu) +{ + CPUClass *cc =3D CPU_GET_CLASS(cpu); + + if (cc->accel_cpu && cc->accel_cpu->cpu_instance_init) { + cc->accel_cpu->cpu_instance_init(cpu); + } +} + +void accel_cpu_realizefn(CPUState *cpu, Error **errp) +{ + CPUClass *cc =3D CPU_GET_CLASS(cpu); + + if (cc->accel_cpu && cc->accel_cpu->cpu_realizefn) { + /* NB: errp parameter is unused currently */ + cc->accel_cpu->cpu_realizefn(cpu, errp); + } +} + static const TypeInfo accel_cpu_type =3D { .name =3D TYPE_ACCEL_CPU, .parent =3D TYPE_OBJECT, diff --git a/cpu.c b/cpu.c index ba5d272c1e..25e6fbfa2c 100644 --- a/cpu.c +++ b/cpu.c @@ -130,11 +130,7 @@ void cpu_exec_realizefn(CPUState *cpu, Error **errp) CPUClass *cc =3D CPU_GET_CLASS(cpu); =20 cpu_list_add(cpu); - - if (cc->accel_cpu) { - /* NB: errp parameter is unused currently */ - cc->accel_cpu->cpu_realizefn(cpu, errp); - } + accel_cpu_realizefn(cpu, errp); =20 #ifdef CONFIG_TCG /* NB: errp parameter is unused currently */ diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 83c474e270..c79123811f 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -28,7 +28,6 @@ #include "sysemu/kvm.h" #include "sysemu/reset.h" #include "sysemu/hvf.h" -#include "hw/core/accel-cpu.h" #include "sysemu/xen.h" #include "sysemu/whpx.h" #include "kvm/kvm_i386.h" @@ -6680,8 +6679,6 @@ static void x86_cpu_initfn(Object *obj) { X86CPU *cpu =3D X86_CPU(obj); X86CPUClass *xcc =3D X86_CPU_GET_CLASS(obj); - CPUClass *cc =3D CPU_CLASS(xcc); - CPUX86State *env =3D &cpu->env; =20 env->nr_dies =3D 1; @@ -6730,10 +6727,8 @@ static void x86_cpu_initfn(Object *obj) x86_cpu_load_model(cpu, xcc->model); } =20 - /* if required, do the accelerator-specific cpu initialization */ - if (cc->accel_cpu) { - cc->accel_cpu->cpu_instance_init(CPU(obj)); - } + /* if required, do accelerator-specific cpu initializations */ + accel_cpu_instance_init(CPU(obj)); } =20 static int64_t x86_cpu_get_arch_id(CPUState *cs) --=20 2.26.2