From nobody Sat Nov 15 20:35:36 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 174833553443592.06184614073675; Tue, 27 May 2025 01:45:34 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uJpvh-0003Ex-0D; Tue, 27 May 2025 04:45:01 -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 1uJpvc-0003Dy-Pa for qemu-devel@nongnu.org; Tue, 27 May 2025 04:44:56 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uJpva-0000eZ-OZ for qemu-devel@nongnu.org; Tue, 27 May 2025 04:44:56 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8AxCGqDezVoSxj+AA--.16324S3; Tue, 27 May 2025 16:44:51 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMBx3xtyezVolPn0AA--.53554S8; Tue, 27 May 2025 16:44:50 +0800 (CST) From: Bibo Mao To: Song Gao Cc: Jiaxun Yang , Huacai Chen , qemu-devel@nongnu.org, Xianglai Li Subject: [PATCH v2 06/12] hw/intc/loongarch_pch_msi: Inject MSI interrupt to kernel Date: Tue, 27 May 2025 16:44:24 +0800 Message-Id: <20250527084430.3468174-7-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250527084430.3468174-1-maobibo@loongson.cn> References: <20250527084430.3468174-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMBx3xtyezVolPn0AA--.53554S8 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_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_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: 1748335536588116600 Content-Type: text/plain; charset="utf-8" If kvm_irqchip_in_kernel() return true, MSI interrupt can be injected with API kvm_irqchip_send_msi() to KVM. Signed-off-by: Bibo Mao --- hw/intc/loongarch_pch_msi.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/hw/intc/loongarch_pch_msi.c b/hw/intc/loongarch_pch_msi.c index 06eb944da0..f6d163158d 100644 --- a/hw/intc/loongarch_pch_msi.c +++ b/hw/intc/loongarch_pch_msi.c @@ -13,6 +13,7 @@ #include "hw/pci/msi.h" #include "hw/misc/unimp.h" #include "migration/vmstate.h" +#include "system/kvm.h" #include "trace.h" =20 static uint64_t loongarch_msi_mem_read(void *opaque, hwaddr addr, unsigned= size) @@ -26,6 +27,15 @@ static void loongarch_msi_mem_write(void *opaque, hwaddr= addr, LoongArchPCHMSI *s =3D (LoongArchPCHMSI *)opaque; int irq_num; =20 + if (kvm_irqchip_in_kernel()) { + MSIMessage msg; + + msg.address =3D addr; + msg.data =3D val; + kvm_irqchip_send_msi(kvm_state, msg); + return; + } + /* * vector number is irq number from upper extioi intc * need subtract irq base to get msi vector offset --=20 2.39.3