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=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 5E1EDC4741F for ; Thu, 5 Nov 2020 16:58:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0935221D46 for ; Thu, 5 Nov 2020 16:58:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604595506; bh=ZlRT2B2hzKLY3HJcbgE+1IHAZncbAVwQ/AHfeNz+z1I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=rLA1je2BIB9EjuswJ9yUGs2F2YDx2WhOvX8aonCtvFGzr64Azj3ApqFhVZhGBUTqR wClgBJNEVtgqN0L5MnTM4l8ZQr4qQCeS5i2jvgTgkOiCgtzIfv4o5ghwr7GD3xMpQ+ I54TLDByE4fKchi2/q87Pc+Ppl/mOBPjtevpYy2w= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731518AbgKEQ6Z (ORCPT ); Thu, 5 Nov 2020 11:58:25 -0500 Received: from mail-wr1-f66.google.com ([209.85.221.66]:35821 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731654AbgKEQ6Y (ORCPT ); Thu, 5 Nov 2020 11:58:24 -0500 Received: by mail-wr1-f66.google.com with SMTP id n15so2605109wrq.2; Thu, 05 Nov 2020 08:58:22 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Bh2EFPnmcn/x+bLcSdCEHI4hoqXZxmYUy4JjOwlCick=; b=Zst5k6LKhFFRyiyTPPMkyWD2odiAVL/zloARX2x4YWuietCHrh0PgGEx8ij8kjG8zy bcXLOZ56wRy8kqbz5EuugPO5g7feWuO5ZSrjL8QVq+eSRxvZ64om+OEEssyjmRggQYHP F+IWkPGcE4kOcdbCzdiZfr7D7Q87WXZ/eAoqf84w7ZszCn7Eib2iKJscf5S+R4Hxa22B ExGMRuqSj7/XLCb72UDL6unlm+GfvAEwOrC4PtKMKVoftpFJi/Ijw3NfwiLGkKbjJ9cy wTVf6dugSLcQE5cfwfj/UhKCxs3ZOewirk3PBzIGmUOI4EwRBqmty3TJVlZcDYf3+FBJ WR/w== X-Gm-Message-State: AOAM533cnJ7DQSfm6OxCyKPzsAYMPtndgp8btTEU10MHDMXzvRFFdpQV JKV+YIzzmtZjn3mSAoEU0h+rKwGDIRA= X-Google-Smtp-Source: ABdhPJwhViVved3GTCeWnOtr+DREAkL3iuMzaCD27vVobs1AMx4FxSw+xOpyOddCpw8z2HuMwtVW4Q== X-Received: by 2002:adf:e447:: with SMTP id t7mr4024862wrm.384.1604595501442; Thu, 05 Nov 2020 08:58:21 -0800 (PST) Received: from liuwe-devbox-debian-v2.j3c5onc20sse1dnehy4noqpfcg.zx.internal.cloudapp.net ([51.145.34.42]) by smtp.gmail.com with ESMTPSA id z5sm3350729wrw.87.2020.11.05.08.58.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Nov 2020 08:58:20 -0800 (PST) From: Wei Liu To: Linux on Hyper-V List Cc: virtualization@lists.linux-foundation.org, Linux Kernel List , Michael Kelley , Vineeth Pillai , Sunil Muthuswamy , Nuno Das Neves , Wei Liu , Joerg Roedel , "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Joerg Roedel , iommu@lists.linux-foundation.org (open list:IOMMU DRIVERS) Subject: [PATCH v2 04/17] iommu/hyperv: don't setup IRQ remapping when running as root Date: Thu, 5 Nov 2020 16:58:01 +0000 Message-Id: <20201105165814.29233-5-wei.liu@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201105165814.29233-1-wei.liu@kernel.org> References: <20201105165814.29233-1-wei.liu@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org The IOMMU code needs more work. We're sure for now the IRQ remapping hooks are not applicable when Linux is the root. Signed-off-by: Wei Liu Acked-by: Joerg Roedel --- drivers/iommu/hyperv-iommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-iommu.c index e09e2d734c57..8d3ce3add57d 100644 --- a/drivers/iommu/hyperv-iommu.c +++ b/drivers/iommu/hyperv-iommu.c @@ -20,6 +20,7 @@ #include #include #include +#include #include "irq_remapping.h" @@ -143,7 +144,7 @@ static int __init hyperv_prepare_irq_remapping(void) int i; if (!hypervisor_is_type(X86_HYPER_MS_HYPERV) || - !x2apic_supported()) + !x2apic_supported() || hv_root_partition) return -ENODEV; fn = irq_domain_alloc_named_id_fwnode("HYPERV-IR", 0); -- 2.20.1