From nobody Sat Nov 15 16:38:22 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 175032321353089.26248790526734; Thu, 19 Jun 2025 01:53:33 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uSAzT-0004Qx-Ij; Thu, 19 Jun 2025 04:51:23 -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 1uSAzQ-0004PQ-1H for qemu-devel@nongnu.org; Thu, 19 Jun 2025 04:51:20 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uSAzM-0002we-IZ for qemu-devel@nongnu.org; Thu, 19 Jun 2025 04:51:19 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8BxYa99z1NofLUZAQ--.18724S3; Thu, 19 Jun 2025 16:51:09 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by front1 (Coremail) with SMTP id qMiowMAxDcVtz1NohtwgAQ--.30176S5; Thu, 19 Jun 2025 16:51:06 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: stefanha@gmail.com, Bibo Mao Subject: [PULL 03/14] hw/intc/loongarch_ipi: Add kernel irqchip realize function Date: Thu, 19 Jun 2025 16:28:06 +0800 Message-Id: <20250619082817.1517996-4-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20250619082817.1517996-1-gaosong@loongson.cn> References: <20250619082817.1517996-1-gaosong@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMAxDcVtz1NohtwgAQ--.30176S5 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: 1750323214996116600 Content-Type: text/plain; charset="utf-8" From: Bibo Mao Function kvm_ipi_realize() is added if kvm_irqchip_in_kernel() return true. It is to create and initialize IPI device in kernel mode. Reviewed-by: Song Gao Signed-off-by: Bibo Mao Message-ID: <20250606063033.2557365-4-maobibo@loongson.cn> Signed-off-by: Song Gao --- hw/intc/loongarch_ipi.c | 5 +++++ hw/intc/loongarch_ipi_kvm.c | 27 +++++++++++++++++++++++++++ hw/intc/loongson_ipi_common.c | 5 +++++ hw/intc/meson.build | 2 ++ include/hw/intc/loongarch_ipi.h | 3 +++ 5 files changed, 42 insertions(+) create mode 100644 hw/intc/loongarch_ipi_kvm.c diff --git a/hw/intc/loongarch_ipi.c b/hw/intc/loongarch_ipi.c index 74372a2039..159ba91fb6 100644 --- a/hw/intc/loongarch_ipi.c +++ b/hw/intc/loongarch_ipi.c @@ -11,6 +11,7 @@ #include "qapi/error.h" #include "hw/intc/loongarch_ipi.h" #include "hw/qdev-properties.h" +#include "system/kvm.h" #include "target/loongarch/cpu.h" =20 static AddressSpace *get_iocsr_as(CPUState *cpu) @@ -91,6 +92,10 @@ static void loongarch_ipi_realize(DeviceState *dev, Erro= r **errp) lics->cpu[i].ipi =3D lics; qdev_init_gpio_out(dev, &lics->cpu[i].irq, 1); } + + if (kvm_irqchip_in_kernel()) { + kvm_ipi_realize(dev, errp); + } } =20 static void loongarch_ipi_reset_hold(Object *obj, ResetType type) diff --git a/hw/intc/loongarch_ipi_kvm.c b/hw/intc/loongarch_ipi_kvm.c new file mode 100644 index 0000000000..51e9c7ed1e --- /dev/null +++ b/hw/intc/loongarch_ipi_kvm.c @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * LoongArch IPI interrupt KVM support + * + * Copyright (C) 2025 Loongson Technology Corporation Limited + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "hw/intc/loongarch_ipi.h" +#include "system/kvm.h" +#include "target/loongarch/cpu.h" + +void kvm_ipi_realize(DeviceState *dev, Error **errp) +{ + LoongarchIPIState *lis =3D LOONGARCH_IPI(dev); + int ret; + + ret =3D kvm_create_device(kvm_state, KVM_DEV_TYPE_LOONGARCH_IPI, false= ); + if (ret < 0) { + fprintf(stderr, "IPI KVM_CREATE_DEVICE failed: %s\n", + strerror(-ret)); + abort(); + } + + lis->dev_fd =3D ret; +} diff --git a/hw/intc/loongson_ipi_common.c b/hw/intc/loongson_ipi_common.c index f32661c40f..ff2cc8bc91 100644 --- a/hw/intc/loongson_ipi_common.c +++ b/hw/intc/loongson_ipi_common.c @@ -11,6 +11,7 @@ #include "hw/irq.h" #include "qemu/log.h" #include "migration/vmstate.h" +#include "system/kvm.h" #include "trace.h" =20 MemTxResult loongson_ipi_core_readl(void *opaque, hwaddr addr, uint64_t *d= ata, @@ -255,6 +256,10 @@ static void loongson_ipi_common_realize(DeviceState *d= ev, Error **errp) LoongsonIPICommonState *s =3D LOONGSON_IPI_COMMON(dev); SysBusDevice *sbd =3D SYS_BUS_DEVICE(dev); =20 + if (kvm_irqchip_in_kernel()) { + return; + } + memory_region_init_io(&s->ipi_iocsr_mem, OBJECT(dev), &loongson_ipi_iocsr_ops, s, "loongson_ipi_iocsr", 0x48); diff --git a/hw/intc/meson.build b/hw/intc/meson.build index 70e7548c52..1cc999771d 100644 --- a/hw/intc/meson.build +++ b/hw/intc/meson.build @@ -71,6 +71,8 @@ specific_ss.add(when: 'CONFIG_M68K_IRQC', if_true: files(= 'm68k_irqc.c')) specific_ss.add(when: 'CONFIG_LOONGSON_IPI_COMMON', if_true: files('loongs= on_ipi_common.c')) specific_ss.add(when: 'CONFIG_LOONGSON_IPI', if_true: files('loongson_ipi.= c')) specific_ss.add(when: 'CONFIG_LOONGARCH_IPI', if_true: files('loongarch_ip= i.c')) +specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_LOONGARCH_IPI'], + if_true: files('loongarch_ipi_kvm.c')) specific_ss.add(when: 'CONFIG_LOONGARCH_PCH_PIC', if_true: files('loongarc= h_pch_pic.c', 'loongarch_pic_common.c')) specific_ss.add(when: 'CONFIG_LOONGARCH_PCH_MSI', if_true: files('loongarc= h_pch_msi.c')) specific_ss.add(when: 'CONFIG_LOONGARCH_EXTIOI', if_true: files('loongarch= _extioi.c', 'loongarch_extioi_common.c')) diff --git a/include/hw/intc/loongarch_ipi.h b/include/hw/intc/loongarch_ip= i.h index a7c6bf85d3..608cd09a78 100644 --- a/include/hw/intc/loongarch_ipi.h +++ b/include/hw/intc/loongarch_ipi.h @@ -16,6 +16,7 @@ OBJECT_DECLARE_TYPE(LoongarchIPIState, LoongarchIPIClass,= LOONGARCH_IPI) =20 struct LoongarchIPIState { LoongsonIPICommonState parent_obj; + int dev_fd; }; =20 struct LoongarchIPIClass { @@ -24,4 +25,6 @@ struct LoongarchIPIClass { ResettablePhases parent_phases; }; =20 +void kvm_ipi_realize(DeviceState *dev, Error **errp); + #endif --=20 2.47.0