Message ID | 20230301234753.28582-7-ricardo.neri-calderon@linux.intel.com (mailing list archive) |
---|---|
State | Handled Elsewhere |
Headers | show
Return-Path: <linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=<UNKNOWN>) Authentication-Results: legolas.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=YH+mxs1h; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4PRrQz1wTsz1yXC for <incoming@patchwork.ozlabs.org>; Thu, 2 Mar 2023 10:43:39 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4PRrQy548lz3f46 for <incoming@patchwork.ozlabs.org>; Thu, 2 Mar 2023 10:43:38 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=YH+mxs1h; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=linux.intel.com (client-ip=192.55.52.43; helo=mga05.intel.com; envelope-from=ricardo.neri-calderon@linux.intel.com; receiver=<UNKNOWN>) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=YH+mxs1h; dkim-atps=neutral Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4PRrJY40rPz3cBF for <linuxppc-dev@lists.ozlabs.org>; Thu, 2 Mar 2023 10:38:05 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1677713885; x=1709249885; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=X+fPhGM+miLCMioUQX1fq5QvQADp974IGsVIuBa8IIM=; b=YH+mxs1hSE90yWfCtw+w4Y4nk02pJMthVz7WPDVVe3TTL1il7ufwMdcR 1bVy4qWiFSRIp6dhwUPRIuVLVKgMqK+ewzXZK/TKO0L0Ap1erDNdzTrw1 4PHcobpj/UEsRBj8lS/Jg07WGF3l/wf1kUmPd5rjcBSetmj8fImq68X+b W4bj3Oijr7U+YN4JJPkICy5ZJYZqM2eK8f6JlI09Gjwxr+AjHrIr88p9Y ohF/egz1eeepWZ/vrtS/ktA8kwgXPDDQ82tGjshSqSmfXBrnW3u5G3idb RH3s7RnoROcOMRyclQ5I4XPmA8yyI2/9QVb914bierBYnIKs6sw9N3Wpw g==; X-IronPort-AV: E=McAfee;i="6500,9779,10636"; a="420818703" X-IronPort-AV: E=Sophos;i="5.98,225,1673942400"; d="scan'208";a="420818703" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Mar 2023 15:37:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10636"; a="738826807" X-IronPort-AV: E=Sophos;i="5.98,225,1673942400"; d="scan'208";a="738826807" Received: from ranerica-svr.sc.intel.com ([172.25.110.23]) by fmsmga008.fm.intel.com with ESMTP; 01 Mar 2023 15:37:56 -0800 From: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> To: Tony Luck <tony.luck@intel.com>, Dave Hansen <dave.hansen@intel.com>, "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>, Reinette Chatre <reinette.chatre@intel.com>, Dan Williams <dan.j.williams@intel.com>, Len Brown <len.brown@intel.com> Subject: [PATCH v7 06/24] iommu/vt-d: Clear the redirection hint when the destination mode is physical Date: Wed, 1 Mar 2023 15:47:35 -0800 Message-Id: <20230301234753.28582-7-ricardo.neri-calderon@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com> References: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/> List-Post: <mailto:linuxppc-dev@lists.ozlabs.org> List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Cc: "Ravi V. Shankar" <ravi.v.shankar@intel.com>, Andi Kleen <ak@linux.intel.com>, Ricardo Neri <ricardo.neri-calderon@linux.intel.com>, Ricardo Neri <ricardo.neri@intel.com>, Stephane Eranian <eranian@google.com>, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, linuxppc-dev@lists.ozlabs.org, David Woodhouse <dwmw2@infradead.org>, Lu Baolu <baolu.lu@linux.intel.com> Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org> |
Series |
x86: Implement an HPET-based hardlockup detector
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expand
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diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c index 6d01fa078c36..2d68f94ae0ee 100644 --- a/drivers/iommu/intel/irq_remapping.c +++ b/drivers/iommu/intel/irq_remapping.c @@ -1123,7 +1123,17 @@ static void prepare_irte(struct irte *irte, int vector, unsigned int dest) irte->dlvry_mode = apic->delivery_mode; irte->vector = vector; irte->dest_id = IRTE_DEST(dest); - irte->redir_hint = 1; + + /* + * When using the destination mode of physical APICID, only the + * processor specified in @dest receives the interrupt. The redirection + * hint is meaningless. + * + * Furthermore, on some processors, NMIs with physical delivery mode + * and the redirection hint set are delivered as regular interrupts + * or not delivered at all. + */ + irte->redir_hint = apic->dest_mode_logical; } struct irq_remap_ops intel_irq_remap_ops = {