From nobody Tue Dec 16 11:43:20 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; dmarc=pass(p=none dis=none) header.from=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1661960227; cv=none; d=zohomail.com; s=zohoarc; b=Gj0K9sOSu/JPEAkchUHEvBtiKwKEiKEzFZ+5IJF5lBtJAXdPuq3JWHwfaWUqGU9EgfaM6D+HLvmG8gHWdEVgLaBkN+NaQ2qDkulhOh+l7X7nyxdlLp94aVWG1HNrqFsicTvMpNn6Ae6m3OUe+oC5EFtaWaV7mkOyzy9lC/whQ5E= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1661960227; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:References:Sender:Subject:To; bh=8s2B9n4diAD5EsqqL9biATrVZ6BdfYZbsoAXqroVzQg=; b=bYqRl+5n/8pft88X13szYhKZTHVAhuwGegIIwNoM9ya2GRcx5YONtQ0Pr+1rQvK3gSSsBWdtNCF7+g5QvpoMV9la6cYiVkCnbfFkLzKo/t34/lz/9epTaOt7edwYK250fCdnjnQjQ3mk69ZZE30oyiqHR/W5Y1OA1nkc2TVpLHA= ARC-Authentication-Results: i=1; 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; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1661960227611195.8249852747707; Wed, 31 Aug 2022 08:37:07 -0700 (PDT) Received: from localhost ([::1]:53442 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oTPm5-0003zb-E2 for importer@patchew.org; Wed, 31 Aug 2022 11:37:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42200) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oTPjE-00029O-Qp for qemu-devel@nongnu.org; Wed, 31 Aug 2022 11:34:09 -0400 Received: from frasgout.his.huawei.com ([185.176.79.56]:2690) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oTPjD-0000je-86 for qemu-devel@nongnu.org; Wed, 31 Aug 2022 11:34:08 -0400 Received: from fraeml744-chm.china.huawei.com (unknown [172.18.147.200]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4MHp9Q5MB4z67y8J; Wed, 31 Aug 2022 23:33:30 +0800 (CST) Received: from lhrpeml500005.china.huawei.com (7.191.163.240) by fraeml744-chm.china.huawei.com (10.206.15.225) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Wed, 31 Aug 2022 17:34:04 +0200 Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 31 Aug 2022 16:34:04 +0100 To: , CC: Ben Widawsky , Dan Williams Subject: [RFC PATCH 1/3] hw/mem/cxl-type3: Add MSI/MSIX support Date: Wed, 31 Aug 2022 16:33:34 +0100 Message-ID: <20220831153336.16165-2-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220831153336.16165-1-Jonathan.Cameron@huawei.com> References: <20220831153336.16165-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhrpeml100002.china.huawei.com (7.191.160.241) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected 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=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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" Reply-to: Jonathan Cameron From: Jonathan Cameron via X-ZM-MESSAGEID: 1661960229168100001 Content-Type: text/plain; charset="utf-8" This will be used by several upcoming patch sets so break it out such that it doesn't matter which one lands first. Signed-off-by: Jonathan Cameron --- hw/mem/cxl_type3.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c index e0c1535b73..68d200144b 100644 --- a/hw/mem/cxl_type3.c +++ b/hw/mem/cxl_type3.c @@ -13,6 +13,8 @@ #include "qemu/rcu.h" #include "sysemu/hostmem.h" #include "hw/cxl/cxl.h" +#include "hw/pci/msi.h" +#include "hw/pci/msix.h" =20 /* * Null value of all Fs suggested by IEEE RA guidelines for use of @@ -146,6 +148,8 @@ static void ct3_realize(PCIDevice *pci_dev, Error **err= p) ComponentRegisters *regs =3D &cxl_cstate->crb; MemoryRegion *mr =3D ®s->component_registers; uint8_t *pci_conf =3D pci_dev->config; + unsigned short msix_num =3D 1; + int i; =20 if (!cxl_setup_memory(ct3d, errp)) { return; @@ -180,6 +184,12 @@ static void ct3_realize(PCIDevice *pci_dev, Error **er= rp) PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64, &ct3d->cxl_dstate.device_registers); + + /* MSI(-X) Initailization */ + msix_init_exclusive_bar(pci_dev, msix_num, 4, NULL); + for (i =3D 0; i < msix_num; i++) { + msix_vector_use(pci_dev, i); + } } =20 static void ct3_exit(PCIDevice *pci_dev) --=20 2.32.0