From nobody Fri Apr 4 04:36:38 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 1740484908660493.896125270277; Tue, 25 Feb 2025 04:01:48 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tmtcZ-0003lf-Pf; Tue, 25 Feb 2025 07:01:16 -0500 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 1tmtcN-0003j7-L9 for qemu-devel@nongnu.org; Tue, 25 Feb 2025 07:00:55 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tmtcI-0006Vj-Ir for qemu-devel@nongnu.org; Tue, 25 Feb 2025 07:00:54 -0500 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8AxaeHusL1nMxaCAA--.48205S3; Tue, 25 Feb 2025 20:00:46 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMBxLsfpsL1n2uMnAA--.19507S8; Tue, 25 Feb 2025 20:00:46 +0800 (CST) From: Bibo Mao To: Stefan Hajnoczi Cc: qemu-devel@nongnu.org, Song Gao Subject: [PULL 06/11] target/loongarch: Add vCPU property for paravirt ipi feature Date: Tue, 25 Feb 2025 20:00:36 +0800 Message-Id: <20250225120041.1652869-7-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250225120041.1652869-1-maobibo@loongson.cn> References: <20250225120041.1652869-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMBxLsfpsL1n2uMnAA--.19507S8 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: 1740484910938019100 Content-Type: text/plain; charset="utf-8" Property kvm-pv-ipi is added to paravirt ipi feature, it is specially for kvm mode. Signed-off-by: Bibo Mao Reviewed-by: Bibo Mao --- target/loongarch/cpu.h | 1 + target/loongarch/kvm/kvm.c | 18 ++++++++++++++++++ target/loongarch/loongarch-qmp-cmds.c | 2 +- 3 files changed, 20 insertions(+), 1 deletion(-) diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index 74dffcb552..447192bfe0 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -406,6 +406,7 @@ struct ArchCPU { OnOffAuto pmu; OnOffAuto lsx; OnOffAuto lasx; + OnOffAuto kvm_pv_ipi; =20 /* 'compatible' string for this CPU for Linux device trees */ const char *dtb_compatible; diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c index b02824356a..83a6887fe8 100644 --- a/target/loongarch/kvm/kvm.c +++ b/target/loongarch/kvm/kvm.c @@ -1040,6 +1040,18 @@ static void loongarch_set_pmu(Object *obj, bool valu= e, Error **errp) cpu->pmu =3D value ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF; } =20 +static bool kvm_pv_ipi_get(Object *obj, Error **errp) +{ + return LOONGARCH_CPU(obj)->kvm_pv_ipi !=3D ON_OFF_AUTO_OFF; +} + +static void kvm_pv_ipi_set(Object *obj, bool value, Error **errp) +{ + LoongArchCPU *cpu =3D LOONGARCH_CPU(obj); + + cpu->kvm_pv_ipi =3D value ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF; +} + void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu) { cpu->lbt =3D ON_OFF_AUTO_AUTO; @@ -1053,6 +1065,12 @@ void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu) loongarch_set_pmu); object_property_set_description(OBJECT(cpu), "pmu", "Set off to disable performance monitor uni= t."); + + cpu->kvm_pv_ipi =3D ON_OFF_AUTO_AUTO; + object_property_add_bool(OBJECT(cpu), "kvm-pv-ipi", kvm_pv_ipi_get, + kvm_pv_ipi_set); + object_property_set_description(OBJECT(cpu), "kvm-pv-ipi", + "Set off to disable KVM paravirt IPI."= ); } =20 int kvm_arch_destroy_vcpu(CPUState *cs) diff --git a/target/loongarch/loongarch-qmp-cmds.c b/target/loongarch/loong= arch-qmp-cmds.c index 3fde5a5a20..4f94a39833 100644 --- a/target/loongarch/loongarch-qmp-cmds.c +++ b/target/loongarch/loongarch-qmp-cmds.c @@ -40,7 +40,7 @@ CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **= errp) } =20 static const char *cpu_model_advertised_features[] =3D { - "lsx", "lasx", "lbt", "pmu", NULL + "lsx", "lasx", "lbt", "pmu", "kvm-pv-ipi", NULL }; =20 CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType= type, --=20 2.43.5