From patchwork Tue May 17 07:15:30 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Xu X-Patchwork-Id: 9109601 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 2E46CBF29F for ; Tue, 17 May 2016 07:18:41 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8FB3D20268 for ; Tue, 17 May 2016 07:18:40 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B1207201FE for ; Tue, 17 May 2016 07:18:39 +0000 (UTC) Received: from localhost ([::1]:48795 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2ZH4-0005zO-Po for patchwork-qemu-devel@patchwork.kernel.org; Tue, 17 May 2016 03:18:38 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42060) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2ZEo-0001S6-2g for qemu-devel@nongnu.org; Tue, 17 May 2016 03:16:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b2ZEh-0008Iz-9j for qemu-devel@nongnu.org; Tue, 17 May 2016 03:16:16 -0400 Received: from mx1.redhat.com ([209.132.183.28]:42217) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2ZEh-0008Iv-40 for qemu-devel@nongnu.org; Tue, 17 May 2016 03:16:11 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id ABF6D37E72; Tue, 17 May 2016 07:16:10 +0000 (UTC) Received: from pxdev.xzpeter.org.com (dhcp-14-147.nay.redhat.com [10.66.14.147]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u4H7FvDk011252; Tue, 17 May 2016 03:16:06 -0400 From: Peter Xu To: qemu-devel@nongnu.org Date: Tue, 17 May 2016 15:15:30 +0800 Message-Id: <1463469353-25642-3-git-send-email-peterx@redhat.com> In-Reply-To: <1463469353-25642-1-git-send-email-peterx@redhat.com> References: <1463469353-25642-1-git-send-email-peterx@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Tue, 17 May 2016 07:16:10 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v7 02/25] intel_iommu: allow queued invalidation for IR X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ehabkost@redhat.com, mst@redhat.com, jasowang@redhat.com, rkrcmar@redhat.com, peterx@redhat.com, alex.williamson@redhat.com, jan.kiszka@web.de, wexu@redhat.com, pbonzini@redhat.com, marcel@redhat.com, imammedo@redhat.com, davidkiarie4@gmail.com, rth@twiddle.net Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 Queued invalidation is required for IR. This patch add basic support for interrupt cache invalidate requests. Since we currently have no IR cache implemented yet, we can just skip all interrupt cache invalidation requests for now. Signed-off-by: Peter Xu --- hw/i386/intel_iommu.c | 9 +++++++++ hw/i386/intel_iommu_internal.h | 2 ++ 2 files changed, 11 insertions(+) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 347718f..4b0558e 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -1400,6 +1400,15 @@ static bool vtd_process_inv_desc(IntelIOMMUState *s) } break; + case VTD_INV_DESC_IEC: + VTD_DPRINTF(INV, "Interrupt Entry Cache Invalidation " + "not implemented yet"); + /* + * Since currently we do not cache interrupt entries, we can + * just mark this descriptor as "good" and move on. + */ + break; + default: VTD_DPRINTF(GENERAL, "error: unkonw Invalidation Descriptor type " "hi 0x%"PRIx64 " lo 0x%"PRIx64 " type %"PRIu8, diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index e5f514c..b648e69 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -286,6 +286,8 @@ typedef struct VTDInvDesc VTDInvDesc; #define VTD_INV_DESC_TYPE 0xf #define VTD_INV_DESC_CC 0x1 /* Context-cache Invalidate Desc */ #define VTD_INV_DESC_IOTLB 0x2 +#define VTD_INV_DESC_IEC 0x4 /* Interrupt Entry Cache + Invalidate Descriptor */ #define VTD_INV_DESC_WAIT 0x5 /* Invalidation Wait Descriptor */ #define VTD_INV_DESC_NONE 0 /* Not an Invalidate Descriptor */