From patchwork Wed Dec 3 07:39:31 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wu, Feng" X-Patchwork-Id: 5427851 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 18A85BEEA8 for ; Wed, 3 Dec 2014 07:58:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0275820266 for ; Wed, 3 Dec 2014 07:58:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F252B20256 for ; Wed, 3 Dec 2014 07:58:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752015AbaLCHtq (ORCPT ); Wed, 3 Dec 2014 02:49:46 -0500 Received: from mga11.intel.com ([192.55.52.93]:60624 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751923AbaLCHtp (ORCPT ); Wed, 3 Dec 2014 02:49:45 -0500 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP; 02 Dec 2014 23:49:44 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,506,1413270000"; d="scan'208";a="631852205" Received: from unknown (HELO wf-hsw-desktop.bj.intel.com) ([10.238.154.53]) by fmsmga001.fm.intel.com with ESMTP; 02 Dec 2014 23:49:41 -0800 From: Feng Wu To: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, gleb@kernel.org, pbonzini@redhat.com, dwmw2@infradead.org, joro@8bytes.org, alex.williamson@redhat.com, jiang.liu@linux.intel.com Cc: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, kvm@vger.kernel.org, Feng Wu Subject: [v2 02/25] iommu: Add new member capability to struct irq_remap_ops Date: Wed, 3 Dec 2014 15:39:31 +0800 Message-Id: <1417592394-24343-3-git-send-email-feng.wu@intel.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1417592394-24343-1-git-send-email-feng.wu@intel.com> References: <1417592394-24343-1-git-send-email-feng.wu@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds a new member capability to struct irq_remap_ops, this new function ops can be used to check whether some features are supported, such as VT-d Posted-Interrupts. Signed-off-by: Feng Wu Reviewed-by: Jiang Liu --- arch/x86/include/asm/irq_remapping.h | 4 ++++ drivers/iommu/irq_remapping.h | 4 ++++ 2 files changed, 8 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h index 6ba2431..f67ae08 100644 --- a/arch/x86/include/asm/irq_remapping.h +++ b/arch/x86/include/asm/irq_remapping.h @@ -31,6 +31,10 @@ struct irq_alloc_info; #ifdef CONFIG_IRQ_REMAP +enum irq_remap_cap { + IRQ_POSTING_CAP = 0, +}; + extern void setup_irq_remapping_ops(void); extern int irq_remapping_supported(void); extern void set_irq_remapping_broken(void); diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h index 4bd791d..2d991b2 100644 --- a/drivers/iommu/irq_remapping.h +++ b/drivers/iommu/irq_remapping.h @@ -28,6 +28,7 @@ struct irq_data; struct msi_msg; struct irq_domain; struct irq_alloc_info; +enum irq_remap_cap; extern int disable_irq_remap; extern int irq_remap_broken; @@ -39,6 +40,9 @@ struct irq_remap_ops { /* Check whether Interrupt Remapping is supported */ int (*supported)(void); + /* Check some capability is supported */ + bool (*capability)(enum irq_remap_cap); + /* Initializes hardware and makes it ready for remapping interrupts */ int (*prepare)(void);