From patchwork Mon Jul 18 22:43:59 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Michael S. Tsirkin" X-Patchwork-Id: 649810 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3rtdy01lqsz9s9d for ; Tue, 19 Jul 2016 09:03:20 +1000 (AEST) Received: from localhost ([::1]:50753 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPHZF-0005gY-VW for incoming@patchwork.ozlabs.org; Mon, 18 Jul 2016 19:03:18 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36457) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPHGi-0006PM-BO for qemu-devel@nongnu.org; Mon, 18 Jul 2016 18:44:09 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bPHGf-0005WH-8h for qemu-devel@nongnu.org; Mon, 18 Jul 2016 18:44:08 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44186) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPHGf-0005WD-3P for qemu-devel@nongnu.org; Mon, 18 Jul 2016 18:44:05 -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 A6E783B723; Mon, 18 Jul 2016 22:44:04 +0000 (UTC) Received: from redhat.com (vpn1-7-82.ams2.redhat.com [10.36.7.82]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with SMTP id u6IMi0X8020803; Mon, 18 Jul 2016 18:44:01 -0400 Date: Tue, 19 Jul 2016 01:43:59 +0300 From: "Michael S. Tsirkin" To: qemu-devel@nongnu.org Message-ID: <20160719014359-mutt-send-email-mst@redhat.com> References: <1468881010-27229-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1468881010-27229-1-git-send-email-mst@redhat.com> X-Mutt-Fcc: =sent 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 [10.5.110.30]); Mon, 18 Jul 2016 22:44:04 +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] [PULL 15/55] intel_iommu: set IR bit for ECAP register 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: Peter Maydell , Richard Henderson , Eduardo Habkost , Peter Xu , Paolo Bonzini Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Peter Xu Enable IR in IOMMU Extended Capability register. Signed-off-by: Peter Xu Signed-off-by: Peter Xu --- hw/i386/intel_iommu_internal.h | 2 ++ hw/i386/intel_iommu.c | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index b648e69..5b98a11 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -176,6 +176,8 @@ /* (offset >> 4) << 8 */ #define VTD_ECAP_IRO (DMAR_IOTLB_REG_OFFSET << 4) #define VTD_ECAP_QI (1ULL << 1) +/* Interrupt Remapping support */ +#define VTD_ECAP_IR (1ULL << 3) /* CAP_REG */ /* (offset >> 4) << 24 */ diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 26e322a..9c7a084 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -1956,6 +1956,8 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn) */ static void vtd_init(IntelIOMMUState *s) { + X86IOMMUState *x86_iommu = X86_IOMMU_DEVICE(s); + memset(s->csr, 0, DMAR_REG_SIZE); memset(s->wmask, 0, DMAR_REG_SIZE); memset(s->w1cmask, 0, DMAR_REG_SIZE); @@ -1977,6 +1979,10 @@ static void vtd_init(IntelIOMMUState *s) VTD_CAP_SAGAW | VTD_CAP_MAMV | VTD_CAP_PSI | VTD_CAP_SLLPS; s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO; + if (x86_iommu->intr_supported) { + s->ecap |= VTD_ECAP_IR; + } + vtd_reset_context_cache(s); vtd_reset_iotlb(s);