From nobody Sat Nov 15 09:11:53 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 1753408143161981.2757132669814; Thu, 24 Jul 2025 18:49:03 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uf7YF-0000m9-2S; Thu, 24 Jul 2025 21:48:47 -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 1uf7Y9-0000PH-5O for qemu-devel@nongnu.org; Thu, 24 Jul 2025 21:48:41 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uf7Y5-0005FZ-R6 for qemu-devel@nongnu.org; Thu, 24 Jul 2025 21:48:40 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8AxbeJr4oJoGpIxAQ--.61817S3; Fri, 25 Jul 2025 09:48:27 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by front1 (Coremail) with SMTP id qMiowJCxH8Jq4oJoGKAlAA--.8750S2; Fri, 25 Jul 2025 09:48:27 +0800 (CST) From: Song Gao To: maobibo@loongson.cn, lixianglai@loongson.cn Cc: qemu-devel@nongnu.org, philmd@linaro.org, jiaxun.yang@flygoat.com Subject: [PATCH v2] hw/intc/loongarch_ipi: use logical CPU ID for kvm_ipi_access_regs Date: Fri, 25 Jul 2025 09:25:28 +0800 Message-Id: <20250725012528.2582498-1-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJCxH8Jq4oJoGKAlAA--.8750S2 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ 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=gaosong@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: 1753408143658116600 Content-Type: text/plain; charset="utf-8" QEMU reboot after inserting no-configuous cpus may start failed becaue the vcpu context may not have created on KVM, On QEMU side use logic= al CPU ID for kvm_ipi_access_regs and do some check. On KVM use kvm_get_vcpu_by_id() = get vcpu. Signed-off-by: Song Gao --- hw/intc/loongarch_ipi_kvm.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/hw/intc/loongarch_ipi_kvm.c b/hw/intc/loongarch_ipi_kvm.c index 4cb3acc921..d0a2f2343f 100644 --- a/hw/intc/loongarch_ipi_kvm.c +++ b/hw/intc/loongarch_ipi_kvm.c @@ -23,14 +23,19 @@ static void kvm_ipi_access_regs(void *opaque, bool writ= e) LoongarchIPIState *lis =3D LOONGARCH_IPI(opaque); IPICore *core; uint64_t attr; - int cpu, fd =3D lis->dev_fd; + int i, cpu, fd =3D lis->dev_fd; =20 if (fd =3D=3D 0) { return; } =20 - for (cpu =3D 0; cpu < ipi->num_cpu; cpu++) { - core =3D &ipi->cpu[cpu]; + for (i =3D 0; i < ipi->num_cpu; i++) { + core =3D &ipi->cpu[i]; + if (core =3D=3D NULL || core->cpu =3D=3D NULL) { + continue; + } + cpu =3D core->cpu->cpu_index; + attr =3D (cpu << 16) | CORE_STATUS_OFF; kvm_ipi_access_reg(fd, attr, &core->status, write); =20 --=20 2.43.0