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=-6.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 5E018C433E4 for ; Fri, 21 Aug 2020 02:17:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3FFEE22BED for ; Fri, 21 Aug 2020 02:17:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="ZHPMzYaP"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="JYv5Wl4U" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727905AbgHUCRJ (ORCPT ); Thu, 20 Aug 2020 22:17:09 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:52582 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727870AbgHUCRE (ORCPT ); Thu, 20 Aug 2020 22:17:04 -0400 Message-Id: <20200821002947.263753263@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1597976223; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=xhbFdhsCsQ5VSYCUiVy99pvX2yN4idfA0I7XlvTQakE=; b=ZHPMzYaPzfOECo836sQFsUmCX7TFv2uj13sv98D4bI8o6iI6WKZs1U7pYv9brD8a4az4fs NyW2wBNkPya+ae9bCFjp09So5OeSSAX52C6juW+HKgm4ymvYeCx/IfVgaDhjbZBDHJN2Y7 N3Ga0P6rEMZqQTiiVOkR3j0KsFCD4vhJzcH9tjRPhCUvVfZb3FJIfpw8yH5bG9MqEf/Vfx HtYfBOCZj0F8653MC9JjGiUq1BCATOsRuRbgl0R92oj6nP6xijsr8QEAN3xNC7i6G9hIwj 93+5AhgyK99DgKHmu6NAF2r5clFidEeEDceyitr+J6fyYTJp9z6GKMouFgvM/g== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1597976223; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=xhbFdhsCsQ5VSYCUiVy99pvX2yN4idfA0I7XlvTQakE=; b=JYv5Wl4UiPVl3hvzKT1TU9FbgMyvxpUxxeVQ/q1ta3fiBXM7WdZyhJVHsfCIDihr82ihZJ mZtv6aJHBV8/OEAQ== Date: Fri, 21 Aug 2020 02:24:44 +0200 From: Thomas Gleixner To: LKML Cc: x86@kernel.org, Bjorn Helgaas , Lorenzo Pieralisi , Jonathan Derrick , linux-pci@vger.kernel.org, Joerg Roedel , iommu@lists.linux-foundation.org, linux-hyperv@vger.kernel.org, Haiyang Zhang , Jon Derrick , Lu Baolu , Wei Liu , "K. Y. Srinivasan" , Stephen Hemminger , Steve Wahl , Dimitri Sivanich , Russ Anderson , Konrad Rzeszutek Wilk , xen-devel@lists.xenproject.org, Juergen Gross , Boris Ostrovsky , Stefano Stabellini , Marc Zyngier , Greg Kroah-Hartman , "Rafael J. Wysocki" , Megha Dey , Jason Gunthorpe , Dave Jiang , Alex Williamson , Jacob Pan , Baolu Lu , Kevin Tian , Dan Williams Subject: [patch RFC 20/38] PCI: vmd: Mark VMD irqdomain with DOMAIN_BUS_VMD_MSI References: <20200821002424.119492231@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline; filename="PCI--vmd--Mark-VMD-irqdomain-with-DOMAIN_BUS_VMD_PCI.patch" Content-transfer-encoding: 8-bit Sender: linux-hyperv-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org Devices on the VMD bus use their own MSI irq domain, but it is not distinguishable from regular PCI/MSI irq domains. This is required to exclude VMD devices from getting the irq domain pointer set by interrupt remapping. Override the default bus token. Signed-off-by: Thomas Gleixner Cc: Bjorn Helgaas Cc: Lorenzo Pieralisi Cc: Jonathan Derrick Cc: linux-pci@vger.kernel.org --- drivers/pci/controller/vmd.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/drivers/pci/controller/vmd.c +++ b/drivers/pci/controller/vmd.c @@ -579,6 +579,12 @@ static int vmd_enable_domain(struct vmd_ return -ENODEV; } + /* + * Override the irq domain bus token so the domain can be distinguished + * from a regular PCI/MSI domain. + */ + irq_domain_update_bus_token(vmd->irq_domain, DOMAIN_BUS_VMD_MSI); + pci_add_resource(&resources, &vmd->resources[0]); pci_add_resource_offset(&resources, &vmd->resources[1], offset[0]); pci_add_resource_offset(&resources, &vmd->resources[2], offset[1]);