From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,RCVD_ILLEGAL_IP, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 58B76C433E4 for ; Mon, 24 Aug 2020 16:50:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2938D2078D for ; Mon, 24 Aug 2020 16:50:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=microsoft.com header.i=@microsoft.com header.b="KxgBBWRB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728692AbgHXQup (ORCPT ); Mon, 24 Aug 2020 12:50:45 -0400 Received: from mail-dm6nam12on2118.outbound.protection.outlook.com ([40.107.243.118]:61408 "EHLO NAM12-DM6-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728630AbgHXQtX (ORCPT ); Mon, 24 Aug 2020 12:49:23 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=kCxo/bzpKT91/2jx3+/kQkOPSWfMyWtJaV+/ZapYJ3pp4Hdlr/k1HyVe78j3O0szABfyb4Wrz+lFZlhO/OIcbgUCw5FYNIJLpJw6oqyyuxW8M/mm2jsCRoQi5X3Fie5wo+W8Hy74jZUJ8invYYhzX2XA0lGF2y+20kNpYv/ZEPCFlHB1ja9nJgSNDQqZH2/TyF+5QFsZLWwVtA/3Lrw/jh54x6hvbRnd4VgORMd/zKsXu+86NDRa+bWZyWqIAHrmJNzTJFT3Jr/bnObxeDvGjSseFM+qKb22MRiD8jIlcBAu0JspTPKaQUJUcEI4slBd5VlTBkv+ZwrRcYXlfUGv5g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=4tbvHCr+PAkwKsxjK8X5LwxiM17npNhS/8Ql+bo2GO4=; b=OMnulliczjm7xTWzVOnSz5MvvTgwJK8HEtYuHLAZvSsHC0Q7tgy1fbnSyZeudbLMkqrX7v+MCk9+hq6NpAbsh7edmPV2zAPT6RpolZYrong+IHVppoa0i4AxQF/yVHHicj/YE8DncNgZeHnN53+XGLFhHaYS6xmMpw8cPezagsQwIxYOZEvX5Qw5yGufcX1FaQbQu41GuvdzuqzVLUFRL4v9wxUVJ4u3aotKe6sQ+kr2GEnnGcjVMTP1W31lLnm1AeaMcbH7xtULVLI0FTrfzJvAvdSgacnxYL5ShMw7H4cZxr80em2VekjVhP6bN2K7WsLDfNNGYgMdD2x28MQrdQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=microsoft.com; dmarc=pass action=none header.from=microsoft.com; dkim=pass header.d=microsoft.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=4tbvHCr+PAkwKsxjK8X5LwxiM17npNhS/8Ql+bo2GO4=; b=KxgBBWRBFAebvyidGNz7DUXoGHByx7PXRiM2slgp/anB9ojMW4bMIYT1PIvdlIOO3DeYsggaTxWH8c7KR0ISmQOu9r483StcUieYpAfK2vXOKkQyNfZV0yO0MN1rxy6PK4J+gVHBbcALZky7rkNsYCbElGSSh2ei/gggm1ssmVQ= Authentication-Results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=microsoft.com; Received: from BN8PR21MB1281.namprd21.prod.outlook.com (2603:10b6:408:a2::19) by BN6PR21MB0753.namprd21.prod.outlook.com (2603:10b6:404:9c::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3348.4; Mon, 24 Aug 2020 16:48:03 +0000 Received: from BN8PR21MB1281.namprd21.prod.outlook.com ([fe80::e0c9:2634:6fb1:5615]) by BN8PR21MB1281.namprd21.prod.outlook.com ([fe80::e0c9:2634:6fb1:5615%3]) with mapi id 15.20.3326.012; Mon, 24 Aug 2020 16:48:03 +0000 From: Michael Kelley To: will@kernel.org, ardb@kernel.org, arnd@arndb.de, catalin.marinas@arm.com, mark.rutland@arm.com, maz@kernel.org, linux-arm-kernel@lists.infradead.org, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-efi@vger.kernel.org, linux-arch@vger.kernel.org, wei.liu@kernel.org, vkuznets@redhat.com, kys@microsoft.com Cc: mikelley@microsoft.com, sunilmut@microsoft.com, boqun.feng@gmail.com Subject: [PATCH v7 08/10] Drivers: hv: vmbus: Add hooks for per-CPU IRQ Date: Mon, 24 Aug 2020 09:46:21 -0700 Message-Id: <1598287583-71762-9-git-send-email-mikelley@microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1598287583-71762-1-git-send-email-mikelley@microsoft.com> References: <1598287583-71762-1-git-send-email-mikelley@microsoft.com> Content-Type: text/plain X-ClientProxiedBy: CO2PR04CA0145.namprd04.prod.outlook.com (2603:10b6:104::23) To BN8PR21MB1281.namprd21.prod.outlook.com (2603:10b6:408:a2::19) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from 255.255.255.255 (255.255.255.255) by CO2PR04CA0145.namprd04.prod.outlook.com (2603:10b6:104::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3305.25 via Frontend Transport; Mon, 24 Aug 2020 16:47:55 +0000 X-Mailer: git-send-email 1.8.3.1 X-Originating-IP: [131.107.159.16] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: e14e6266-aa11-41b3-ec99-08d8484d73e2 X-MS-TrafficTypeDiagnostic: BN6PR21MB0753: X-MS-Exchange-Transport-Forked: True X-LD-Processed: 72f988bf-86f1-41af-91ab-2d7cd011db47,ExtAddr X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7691; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: hOjspxDxFRdsXNAyPUaaVwIdLAEE/ETylCxtVn/iK8JfijR8B5u4O2cNMuzGoOTt8r469W3FtUMJ+elgM5+/PnccG2wQhNISmDKWqc/YebbKrMIRKd8yFo7/j5TFAQ/YPQjE22kCljOtHWznO32tBRUtScEohoc2q3bBqMj7TgxUVO4W7iU/h9Pr1wt1Xvsef6WOpNancEQGZVeXSgW8fSGDPNsVsARPZTJF63+42WD44EVlNPncFRZBSQhmIbsQqxO5RlMz8n+OPMVYQcCmUTRgy/9XZvN9InsCo+hcWUyfhiUtjyEzMViNPYqfTWurPqoLzBbve6D26bnNaDDtJBZt888PLHsDWXAmHINBSnazhM80GOH9qO/7jZ7TgJQq X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BN8PR21MB1281.namprd21.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(136003)(39860400002)(366004)(376002)(396003)(346002)(8676002)(86362001)(2616005)(956004)(2906002)(6486002)(8936002)(52116002)(10290500003)(5660300002)(66946007)(16576012)(66556008)(4326008)(6636002)(316002)(36756003)(186003)(82950400001)(478600001)(26005)(6666004)(66476007)(82960400001)(83380400001)(7416002)(921003);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: e14e6266-aa11-41b3-ec99-08d8484d73e2 X-MS-Exchange-CrossTenant-AuthSource: BN8PR21MB1281.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Aug 2020 16:47:57.0956 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: T7eQKxiWmlDdNZ348lZpCFOXXLma/0PIvjEa0yMqskPwf5Ew6lCb+FhNGEcW5rdIblB5ZvZsgzBnh0a2qXb7rA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR21MB0753 Sender: linux-arch-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org Add hooks to enable/disable a per-CPU IRQ for VMbus. These hooks are in the architecture independent setup and shutdown paths for Hyper-V, and are needed by Linux guests on Hyper-V on ARM64. The x86/x64 implementation is null because VMbus interrupts on x86/x64 don't use an IRQ. Signed-off-by: Michael Kelley --- arch/x86/include/asm/mshyperv.h | 4 ++++ drivers/hv/hv.c | 3 +++ 2 files changed, 7 insertions(+) diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index ffc2899..dd1365c 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -56,6 +56,10 @@ typedef int (*hyperv_fill_flush_list_func)( #define hv_get_raw_timer() rdtsc_ordered() #define hv_get_vector() HYPERVISOR_CALLBACK_VECTOR +/* On x86/x64, there isn't a real IRQ to be enabled/disable */ +static inline void hv_enable_vmbus_irq(void) {} +static inline void hv_disable_vmbus_irq(void) {} + /* * Reference to pv_ops must be inline so objtool * detection of noinstr violations can work correctly. diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index 2bd44fd..7499079 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -178,6 +178,7 @@ void hv_synic_enable_regs(unsigned int cpu) hv_set_siefp(siefp.as_uint64); /* Setup the shared SINT. */ + hv_enable_vmbus_irq(); hv_get_synint_state(VMBUS_MESSAGE_SINT, shared_sint.as_uint64); shared_sint.vector = hv_get_vector(); @@ -235,6 +236,8 @@ void hv_synic_disable_regs(unsigned int cpu) hv_get_synic_state(sctrl.as_uint64); sctrl.enable = 0; hv_set_synic_state(sctrl.as_uint64); + + hv_disable_vmbus_irq(); } int hv_synic_cleanup(unsigned int cpu) -- 1.8.3.1