From nobody Thu Apr 3 10:14:45 2025 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1742440981227121.05882056476003; Wed, 19 Mar 2025 20:23:01 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6UM-0001Hv-NQ; Wed, 19 Mar 2025 23:22:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tv6U3-0001G3-69 for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:17 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6U0-0004wf-1S for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:14 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8BxnmvdidtnI++dAA--.4477S3; Thu, 20 Mar 2025 11:22:05 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMDx_MTWidtnEfVUAA--.47322S3; Thu, 20 Mar 2025 11:22:05 +0800 (CST) From: Bibo Mao To: Song Gao , Markus Armbruster Cc: Jiaxun Yang , qemu-devel@nongnu.org, Paolo Bonzini , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v5 1/6] target/loongarch: Fix error handling of KVM feature checks Date: Thu, 20 Mar 2025 11:21:53 +0800 Message-Id: <20250320032158.1762751-2-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250320032158.1762751-1-maobibo@loongson.cn> References: <20250320032158.1762751-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMDx_MTWidtnEfVUAA--.47322S3 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 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-ZM-MESSAGEID: 1742440986675019100 For some paravirt KVM features, if user forces to enable it however KVM does not support, qemu should fail to run and exit immediately, rather than continue to run. Here set error message and return directly in function kvm_arch_init_vcpu(). Fixes: 6edd2a9bec90 (target/loongarch/kvm: Implement LoongArch PMU extensio= n) Fixes: 936c3f4d7916 (target/loongarch: Use auto method with LSX feature) Fixes: 5e360dabedb1 (target/loongarch: Use auto method with LASX feature) Fixes: 620d9bd0022e (target/loongarch: Add paravirt ipi feature detection) Signed-off-by: Bibo Mao Reviewed-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- target/loongarch/kvm/kvm.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c index 28735c80be..7f63e7c8fe 100644 --- a/target/loongarch/kvm/kvm.c +++ b/target/loongarch/kvm/kvm.c @@ -1081,7 +1081,6 @@ int kvm_arch_init_vcpu(CPUState *cs) int ret; Error *local_err =3D NULL; =20 - ret =3D 0; qemu_add_vm_change_state_handler(kvm_loongarch_vm_stage_change, cs); =20 if (!kvm_get_one_reg(cs, KVM_REG_LOONGARCH_DEBUG_INST, &val)) { @@ -1091,29 +1090,34 @@ int kvm_arch_init_vcpu(CPUState *cs) ret =3D kvm_cpu_check_lsx(cs, &local_err); if (ret < 0) { error_report_err(local_err); + return ret; } =20 ret =3D kvm_cpu_check_lasx(cs, &local_err); if (ret < 0) { error_report_err(local_err); + return ret; } =20 ret =3D kvm_cpu_check_lbt(cs, &local_err); if (ret < 0) { error_report_err(local_err); + return ret; } =20 ret =3D kvm_cpu_check_pmu(cs, &local_err); if (ret < 0) { error_report_err(local_err); + return ret; } =20 ret =3D kvm_cpu_check_pv_features(cs, &local_err); if (ret < 0) { error_report_err(local_err); + return ret; } =20 - return ret; + return 0; } =20 static bool loongarch_get_lbt(Object *obj, Error **errp) --=20 2.39.3 From nobody Thu Apr 3 10:14:45 2025 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 174244098140732.94328037294372; Wed, 19 Mar 2025 20:23:01 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6UP-0001Hw-2K; Wed, 19 Mar 2025 23:22:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tv6U4-0001GF-MU for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:18 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6U0-0004wi-SV for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:15 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8DxOGrdidtnJe+dAA--.5921S3; Thu, 20 Mar 2025 11:22:05 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMDx_MTWidtnEfVUAA--.47322S4; Thu, 20 Mar 2025 11:22:05 +0800 (CST) From: Bibo Mao To: Song Gao , Markus Armbruster Cc: Jiaxun Yang , qemu-devel@nongnu.org, Paolo Bonzini Subject: [PATCH v5 2/6] hw/loongarch/virt: Fix error handling in cpu plug Date: Thu, 20 Mar 2025 11:21:54 +0800 Message-Id: <20250320032158.1762751-3-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250320032158.1762751-1-maobibo@loongson.cn> References: <20250320032158.1762751-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMDx_MTWidtnEfVUAA--.47322S4 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 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-ZM-MESSAGEID: 1742440986634019101 Content-Type: text/plain; charset="utf-8" In function virt_cpu_plug(), it will send cpu plug message to interrupt controller extioi and ipi irqchip. If there is problem in this function, system should continue to run and keep state the same before cpu is added. Object cpuslot::cpu is set at last only when there is no any error. If there is, send cpu unplug message to extioi and ipi irqchip, and then return immediately. Fixes: ab9935d2991e (hw/loongarch/virt: Implement cpu plug interface) Signed-off-by: Bibo Mao --- hw/loongarch/virt.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index a5840ff968..5118f01e4b 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -981,8 +981,6 @@ static void virt_cpu_plug(HotplugHandler *hotplug_dev, LoongArchVirtMachineState *lvms =3D LOONGARCH_VIRT_MACHINE(hotplug_dev= ); Error *err =3D NULL; =20 - cpu_slot =3D virt_find_cpu_slot(MACHINE(lvms), cpu->phy_id); - cpu_slot->cpu =3D CPU(dev); if (lvms->ipi) { hotplug_handler_plug(HOTPLUG_HANDLER(lvms->ipi), dev, &err); if (err) { @@ -995,6 +993,10 @@ static void virt_cpu_plug(HotplugHandler *hotplug_dev, hotplug_handler_plug(HOTPLUG_HANDLER(lvms->extioi), dev, &err); if (err) { error_propagate(errp, err); + if (lvms->ipi) { + /* Send unplug message to restore, discard error here */ + hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->ipi), dev, NU= LL); + } return; } } @@ -1003,9 +1005,20 @@ static void virt_cpu_plug(HotplugHandler *hotplug_de= v, hotplug_handler_plug(HOTPLUG_HANDLER(lvms->acpi_ged), dev, &err); if (err) { error_propagate(errp, err); + if (lvms->ipi) { + hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->ipi), dev, NU= LL); + } + + if (lvms->extioi) { + hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->extioi), + dev, NULL); + } + return; } } =20 + cpu_slot =3D virt_find_cpu_slot(MACHINE(lvms), cpu->phy_id); + cpu_slot->cpu =3D CPU(dev); return; } =20 --=20 2.39.3 From nobody Thu Apr 3 10:14:45 2025 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1742440981264575.6303494920593; Wed, 19 Mar 2025 20:23:01 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6UI-0001HW-MZ; Wed, 19 Mar 2025 23:22:30 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tv6U2-0001G1-Jh for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:16 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6Tz-0004wk-29 for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:13 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8AxbeLeidtnKe+dAA--.32311S3; Thu, 20 Mar 2025 11:22:06 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMDx_MTWidtnEfVUAA--.47322S5; Thu, 20 Mar 2025 11:22:05 +0800 (CST) From: Bibo Mao To: Song Gao , Markus Armbruster Cc: Jiaxun Yang , qemu-devel@nongnu.org, Paolo Bonzini Subject: [PATCH v5 3/6] hw/loongarch/virt: Fix error handling in cpu unplug Date: Thu, 20 Mar 2025 11:21:55 +0800 Message-Id: <20250320032158.1762751-4-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250320032158.1762751-1-maobibo@loongson.cn> References: <20250320032158.1762751-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMDx_MTWidtnEfVUAA--.47322S5 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 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-ZM-MESSAGEID: 1742440986634019100 Content-Type: text/plain; charset="utf-8" In function virt_cpu_unplug(), it will send cpu unplug message to interrupt controller extioi and ipi irqchip. If there is problem in this function, system should continue to run and keep state the same before cpu is removed. If error happends in cpu unplug stage, send cpu plug message to extioi and ipi irqchip to restore to previous stage, and then return immediately. Fixes: 2cd6857f6f5b (hw/loongarch/virt: Implement cpu unplug interface) Signed-off-by: Bibo Mao --- hw/loongarch/virt.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 5118f01e4b..8dd5d88c31 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -958,12 +958,16 @@ static void virt_cpu_unplug(HotplugHandler *hotplug_d= ev, hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->extioi), dev, &err); if (err) { error_propagate(errp, err); + /* Send plug message to restore, discard error here */ + hotplug_handler_plug(HOTPLUG_HANDLER(lvms->ipi), dev, NULL); return; } =20 /* Notify acpi ged CPU removed */ hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->acpi_ged), dev, &err); if (err) { + hotplug_handler_plug(HOTPLUG_HANDLER(lvms->ipi), dev, NULL); + hotplug_handler_plug(HOTPLUG_HANDLER(lvms->extioi), dev, NULL); error_propagate(errp, err); return; } --=20 2.39.3 From nobody Thu Apr 3 10:14:45 2025 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1742441059820585.5558752559019; Wed, 19 Mar 2025 20:24:19 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6VL-00022d-RA; Wed, 19 Mar 2025 23:23:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tv6U4-0001GG-N2 for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:18 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6Tz-0004wv-IO for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:15 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8DxdWnfidtnLO+dAA--.4953S3; Thu, 20 Mar 2025 11:22:07 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMDx_MTWidtnEfVUAA--.47322S6; Thu, 20 Mar 2025 11:22:06 +0800 (CST) From: Bibo Mao To: Song Gao , Markus Armbruster Cc: Jiaxun Yang , qemu-devel@nongnu.org, Paolo Bonzini Subject: [PATCH v5 4/6] hw/loongarch/virt: Eliminate error_propagate() Date: Thu, 20 Mar 2025 11:21:56 +0800 Message-Id: <20250320032158.1762751-5-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250320032158.1762751-1-maobibo@loongson.cn> References: <20250320032158.1762751-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMDx_MTWidtnEfVUAA--.47322S6 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 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-ZM-MESSAGEID: 1742441062719019100 Content-Type: text/plain; charset="utf-8" When there is an error, it is put into a local variable and then propagated to somewhere else. Instead the error can be set right away, error propagation can be removed. Signed-off-by: Bibo Mao Reviewed-by: Markus Armbruster --- hw/loongarch/virt.c | 32 +++++++++++--------------------- 1 file changed, 11 insertions(+), 21 deletions(-) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 8dd5d88c31..8a766181ec 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -859,30 +859,29 @@ static void virt_cpu_pre_plug(HotplugHandler *hotplug= _dev, LoongArchCPU *cpu =3D LOONGARCH_CPU(dev); CPUState *cs =3D CPU(dev); CPUArchId *cpu_slot; - Error *err =3D NULL; LoongArchCPUTopo topo; int arch_id; =20 if (lvms->acpi_ged) { if ((cpu->thread_id < 0) || (cpu->thread_id >=3D ms->smp.threads))= { - error_setg(&err, + error_setg(errp, "Invalid thread-id %u specified, must be in range 1= :%u", cpu->thread_id, ms->smp.threads - 1); - goto out; + return; } =20 if ((cpu->core_id < 0) || (cpu->core_id >=3D ms->smp.cores)) { - error_setg(&err, + error_setg(errp, "Invalid core-id %u specified, must be in range 1:%= u", cpu->core_id, ms->smp.cores - 1); - goto out; + return; } =20 if ((cpu->socket_id < 0) || (cpu->socket_id >=3D ms->smp.sockets))= { - error_setg(&err, + error_setg(errp, "Invalid socket-id %u specified, must be in range 1= :%u", cpu->socket_id, ms->smp.sockets - 1); - goto out; + return; } =20 topo.socket_id =3D cpu->socket_id; @@ -891,11 +890,11 @@ static void virt_cpu_pre_plug(HotplugHandler *hotplug= _dev, arch_id =3D virt_get_arch_id_from_topo(ms, &topo); cpu_slot =3D virt_find_cpu_slot(ms, arch_id); if (CPU(cpu_slot->cpu)) { - error_setg(&err, + error_setg(errp, "cpu(id%d=3D%d:%d:%d) with arch-id %" PRIu64 " exis= ts", cs->cpu_index, cpu->socket_id, cpu->core_id, cpu->thread_id, cpu_slot->arch_id); - goto out; + return; } } else { /* For cold-add cpu, find empty cpu slot */ @@ -911,33 +910,24 @@ static void virt_cpu_pre_plug(HotplugHandler *hotplug= _dev, cpu->env.address_space_iocsr =3D &lvms->as_iocsr; cpu->phy_id =3D cpu_slot->arch_id; cs->cpu_index =3D cpu_slot - ms->possible_cpus->cpus; - numa_cpu_pre_plug(cpu_slot, dev, &err); -out: - if (err) { - error_propagate(errp, err); - } + numa_cpu_pre_plug(cpu_slot, dev, errp); } =20 static void virt_cpu_unplug_request(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { LoongArchVirtMachineState *lvms =3D LOONGARCH_VIRT_MACHINE(hotplug_dev= ); - Error *err =3D NULL; LoongArchCPU *cpu =3D LOONGARCH_CPU(dev); CPUState *cs =3D CPU(dev); =20 if (cs->cpu_index =3D=3D 0) { - error_setg(&err, "hot-unplug of boot cpu(id%d=3D%d:%d:%d) not supp= orted", + error_setg(errp, "hot-unplug of boot cpu(id%d=3D%d:%d:%d) not supp= orted", cs->cpu_index, cpu->socket_id, cpu->core_id, cpu->thread_id); - error_propagate(errp, err); return; } =20 - hotplug_handler_unplug_request(HOTPLUG_HANDLER(lvms->acpi_ged), dev, &= err); - if (err) { - error_propagate(errp, err); - } + hotplug_handler_unplug_request(HOTPLUG_HANDLER(lvms->acpi_ged), dev, e= rrp); } =20 static void virt_cpu_unplug(HotplugHandler *hotplug_dev, --=20 2.39.3 From nobody Thu Apr 3 10:14:45 2025 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1742441033366312.113244027438; Wed, 19 Mar 2025 20:23:53 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6VJ-0001pI-Jz; Wed, 19 Mar 2025 23:23:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tv6U4-0001GE-Lg for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:18 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6U0-0004wx-SW for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:15 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8AxCGrgidtnMe+dAA--.4723S3; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 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-ZM-MESSAGEID: 1742441036453019100 Temporary variable ret is assigned at last line and return, it can be removed and return directly. Signed-off-by: Bibo Mao Reviewed-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- target/loongarch/tcg/tlb_helper.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/target/loongarch/tcg/tlb_helper.c b/target/loongarch/tcg/tlb_h= elper.c index 646dbf59de..182881a237 100644 --- a/target/loongarch/tcg/tlb_helper.c +++ b/target/loongarch/tcg/tlb_helper.c @@ -543,7 +543,7 @@ target_ulong helper_lddir(CPULoongArchState *env, targe= t_ulong base, target_ulong level, uint32_t mem_idx) { CPUState *cs =3D env_cpu(env); - target_ulong badvaddr, index, phys, ret; + target_ulong badvaddr, index, phys; uint64_t dir_base, dir_width; =20 if (unlikely((level =3D=3D 0) || (level > 4))) { @@ -571,8 +571,7 @@ target_ulong helper_lddir(CPULoongArchState *env, targe= t_ulong base, get_dir_base_width(env, &dir_base, &dir_width, level); index =3D (badvaddr >> dir_base) & ((1 << dir_width) - 1); phys =3D base | index << 3; - ret =3D ldq_phys(cs->as, phys) & TARGET_PHYS_MASK; - return ret; + return ldq_phys(cs->as, phys) & TARGET_PHYS_MASK; } =20 void helper_ldpte(CPULoongArchState *env, target_ulong base, target_ulong = odd, --=20 2.39.3 From nobody Thu Apr 3 10:14:45 2025 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1742441008154555.3686273044624; Wed, 19 Mar 2025 20:23:28 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6Uj-0001Kk-Js; Wed, 19 Mar 2025 23:22:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tv6U4-0001GH-ND for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:18 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tv6U0-0004x1-TB for qemu-devel@nongnu.org; Wed, 19 Mar 2025 23:22:15 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8AxlnDgidtnNO+dAA--.4275S3; Thu, 20 Mar 2025 11:22:08 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMDx_MTWidtnEfVUAA--.47322S8; Thu, 20 Mar 2025 11:22:08 +0800 (CST) From: Bibo Mao To: Song Gao , Markus Armbruster Cc: Jiaxun Yang , qemu-devel@nongnu.org, Paolo Bonzini Subject: [PATCH v5 6/6] target/loongarch: Clean up virt_cpu_irq_init() error handling Date: Thu, 20 Mar 2025 11:21:58 +0800 Message-Id: <20250320032158.1762751-7-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250320032158.1762751-1-maobibo@loongson.cn> References: <20250320032158.1762751-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMDx_MTWidtnEfVUAA--.47322S8 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 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-ZM-MESSAGEID: 1742441008788019000 Content-Type: text/plain; charset="utf-8" The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. virt_cpu_irq_init() is wrong that way: it passes &err to hotplug_handler_plug() twice. If both calls failed, this could trip error_setv()'s assertion. Moreover, if just one fails, the Error object leaks. Fortunately, these calls can't actually fail. Messed up in commit 50ebc3fc47f7 (hw/intc/loongarch_ipi: Notify ipi object when cpu is plugged) and commit 087a23a87c57 (hw/intc/loongarch_extioi: Use cpu plug notification). Clean this up by passing &error_abort instead. Signed-off-by: Bibo Mao Acked-by: Markus Armbruster --- hw/loongarch/virt.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 8a766181ec..66da6b241f 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -327,7 +327,6 @@ static void virt_cpu_irq_init(LoongArchVirtMachineState= *lvms) MachineClass *mc =3D MACHINE_GET_CLASS(ms); const CPUArchIdList *possible_cpus; CPUState *cs; - Error *err =3D NULL; =20 /* cpu nodes */ possible_cpus =3D mc->possible_cpu_arch_ids(ms); @@ -337,8 +336,10 @@ static void virt_cpu_irq_init(LoongArchVirtMachineStat= e *lvms) continue; } =20 - hotplug_handler_plug(HOTPLUG_HANDLER(lvms->ipi), DEVICE(cs), &err); - hotplug_handler_plug(HOTPLUG_HANDLER(lvms->extioi), DEVICE(cs), &e= rr); + hotplug_handler_plug(HOTPLUG_HANDLER(lvms->ipi), DEVICE(cs), + &error_abort); + hotplug_handler_plug(HOTPLUG_HANDLER(lvms->extioi), DEVICE(cs), + &error_abort); } } =20 --=20 2.39.3