From patchwork Thu Jan 28 09:27:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Claudio Fontana X-Patchwork-Id: 12053243 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5D620C433DB for ; Thu, 28 Jan 2021 09:34:33 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BE56460C3D for ; Thu, 28 Jan 2021 09:34:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BE56460C3D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:37448 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l53h9-0006P2-7U for qemu-devel@archiver.kernel.org; Thu, 28 Jan 2021 04:34:31 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:36742) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l53bJ-0000xP-TY for qemu-devel@nongnu.org; Thu, 28 Jan 2021 04:28:29 -0500 Received: from mx2.suse.de ([195.135.220.15]:37744) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l53bG-0001wY-MU for qemu-devel@nongnu.org; Thu, 28 Jan 2021 04:28:29 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 8B5BFAE12; Thu, 28 Jan 2021 09:28:21 +0000 (UTC) From: Claudio Fontana To: =?utf-8?q?Alex_Benn=C3=A9e?= , Paolo Bonzini , Richard Henderson , =?utf-8?q?Philippe_Mathie?= =?utf-8?q?u-Daud=C3=A9?= , Eduardo Habkost , Peter Maydell Subject: [PATCH v14 03/22] accel/tcg: split TCG-only code from cpu_exec_realizefn Date: Thu, 28 Jan 2021 10:27:55 +0100 Message-Id: <20210128092814.8676-4-cfontana@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210128092814.8676-1-cfontana@suse.de> References: <20210128092814.8676-1-cfontana@suse.de> MIME-Version: 1.0 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 , Thomas Huth , qemu-devel@nongnu.org, Roman Bolshakov , Alistair Francis , Claudio Fontana Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" move away TCG-only code, make it compile only on TCG. Signed-off-by: Claudio Fontana Reviewed-by: Alex Bennée Reviewed-by: Richard Henderson [claudio: moved the prototypes from hw/core/cpu.h to exec/cpu-all.h] --- include/exec/cpu-all.h | 11 +++++-- include/hw/core/cpu.h | 2 ++ accel/tcg/cpu-exec.c | 28 +++++++++++++++++ cpu.c | 70 ++++++++++++++++++++---------------------- hw/core/cpu.c | 6 +++- 5 files changed, 77 insertions(+), 40 deletions(-) diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h index 4b5408c341..cfb1d79331 100644 --- a/include/exec/cpu-all.h +++ b/include/exec/cpu-all.h @@ -410,19 +410,26 @@ static inline bool tlb_hit(target_ulong tlb_addr, target_ulong addr) } #ifdef CONFIG_TCG +/* accel/tcg/cpu-exec.c */ void dump_drift_info(void); +/* accel/tcg/translate-all.c */ void dump_exec_info(void); void dump_opcount_info(void); #endif /* CONFIG_TCG */ #endif /* !CONFIG_USER_ONLY */ +#ifdef CONFIG_TCG +/* accel/tcg/cpu-exec.c */ +int cpu_exec(CPUState *cpu); +void tcg_exec_realizefn(CPUState *cpu, Error **errp); +void tcg_exec_unrealizefn(CPUState *cpu); +#endif /* CONFIG_TCG */ + /* Returns: 0 on success, -1 on error */ int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr, void *ptr, target_ulong len, bool is_write); -int cpu_exec(CPUState *cpu); - /** * cpu_set_cpustate_pointers(cpu) * @cpu: The cpu object diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index 5b981c1730..96fdca39d2 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -1130,6 +1130,8 @@ AddressSpace *cpu_get_address_space(CPUState *cpu, int asidx); void QEMU_NORETURN cpu_abort(CPUState *cpu, const char *fmt, ...) GCC_FMT_ATTR(2, 3); + +/* $(top_srcdir)/cpu.c */ void cpu_exec_initfn(CPUState *cpu); void cpu_exec_realizefn(CPUState *cpu, Error **errp); void cpu_exec_unrealizefn(CPUState *cpu); diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index 6d017e46dd..5628a156d1 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -828,6 +828,34 @@ int cpu_exec(CPUState *cpu) return ret; } +void tcg_exec_realizefn(CPUState *cpu, Error **errp) +{ + static bool tcg_target_initialized; + CPUClass *cc = CPU_GET_CLASS(cpu); + + if (!tcg_target_initialized) { + cc->tcg_ops.initialize(); + tcg_target_initialized = true; + } + tlb_init(cpu); + qemu_plugin_vcpu_init_hook(cpu); + +#ifndef CONFIG_USER_ONLY + tcg_iommu_init_notifier_list(cpu); +#endif /* !CONFIG_USER_ONLY */ +} + +/* undo the initializations in reverse order */ +void tcg_exec_unrealizefn(CPUState *cpu) +{ +#ifndef CONFIG_USER_ONLY + tcg_iommu_free_notifier_list(cpu); +#endif /* !CONFIG_USER_ONLY */ + + qemu_plugin_vcpu_exit_hook(cpu); + tlb_destroy(cpu); +} + #ifndef CONFIG_USER_ONLY void dump_drift_info(void) diff --git a/cpu.c b/cpu.c index 79a2bf12b3..bfbe5a66f9 100644 --- a/cpu.c +++ b/cpu.c @@ -124,13 +124,35 @@ const VMStateDescription vmstate_cpu_common = { }; #endif +void cpu_exec_realizefn(CPUState *cpu, Error **errp) +{ + CPUClass *cc = CPU_GET_CLASS(cpu); + + cpu_list_add(cpu); + +#ifdef CONFIG_TCG + /* NB: errp parameter is unused currently */ + if (tcg_enabled()) { + tcg_exec_realizefn(cpu, errp); + } +#endif /* CONFIG_TCG */ + +#ifdef CONFIG_USER_ONLY + assert(cc->vmsd == NULL); +#else + if (qdev_get_vmsd(DEVICE(cpu)) == NULL) { + vmstate_register(NULL, cpu->cpu_index, &vmstate_cpu_common, cpu); + } + if (cc->vmsd != NULL) { + vmstate_register(NULL, cpu->cpu_index, cc->vmsd, cpu); + } +#endif /* CONFIG_USER_ONLY */ +} + void cpu_exec_unrealizefn(CPUState *cpu) { CPUClass *cc = CPU_GET_CLASS(cpu); - tlb_destroy(cpu); - cpu_list_remove(cpu); - #ifdef CONFIG_USER_ONLY assert(cc->vmsd == NULL); #else @@ -140,8 +162,15 @@ void cpu_exec_unrealizefn(CPUState *cpu) if (qdev_get_vmsd(DEVICE(cpu)) == NULL) { vmstate_unregister(NULL, &vmstate_cpu_common, cpu); } - tcg_iommu_free_notifier_list(cpu); #endif +#ifdef CONFIG_TCG + /* NB: errp parameter is unused currently */ + if (tcg_enabled()) { + tcg_exec_unrealizefn(cpu); + } +#endif /* CONFIG_TCG */ + + cpu_list_remove(cpu); } void cpu_exec_initfn(CPUState *cpu) @@ -156,39 +185,6 @@ void cpu_exec_initfn(CPUState *cpu) #endif } -void cpu_exec_realizefn(CPUState *cpu, Error **errp) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); -#ifdef CONFIG_TCG - static bool tcg_target_initialized; -#endif /* CONFIG_TCG */ - - cpu_list_add(cpu); - -#ifdef CONFIG_TCG - if (tcg_enabled() && !tcg_target_initialized) { - tcg_target_initialized = true; - cc->tcg_ops.initialize(); - } -#endif /* CONFIG_TCG */ - tlb_init(cpu); - - qemu_plugin_vcpu_init_hook(cpu); - -#ifdef CONFIG_USER_ONLY - assert(cc->vmsd == NULL); -#else /* !CONFIG_USER_ONLY */ - if (qdev_get_vmsd(DEVICE(cpu)) == NULL) { - vmstate_register(NULL, cpu->cpu_index, &vmstate_cpu_common, cpu); - } - if (cc->vmsd != NULL) { - vmstate_register(NULL, cpu->cpu_index, cc->vmsd, cpu); - } - - tcg_iommu_init_notifier_list(cpu); -#endif -} - const char *parse_cpu_option(const char *cpu_option) { ObjectClass *oc; diff --git a/hw/core/cpu.c b/hw/core/cpu.c index 7553411653..57542b6906 100644 --- a/hw/core/cpu.c +++ b/hw/core/cpu.c @@ -199,6 +199,10 @@ static bool cpu_common_virtio_is_big_endian(CPUState *cpu) return target_words_bigendian(); } +/* + * XXX the following #if is always true because this is a common_ss + * module, so target CONFIG_* is never defined. + */ #if !defined(CONFIG_USER_ONLY) GuestPanicInformation *cpu_get_crash_info(CPUState *cpu) { @@ -340,9 +344,9 @@ static void cpu_common_realizefn(DeviceState *dev, Error **errp) static void cpu_common_unrealizefn(DeviceState *dev) { CPUState *cpu = CPU(dev); + /* NOTE: latest generic point before the cpu is fully unrealized */ trace_fini_vcpu(cpu); - qemu_plugin_vcpu_exit_hook(cpu); cpu_exec_unrealizefn(cpu); }