From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51724) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aWbme-0002Pp-VI for qemu-devel@nongnu.org; Thu, 18 Feb 2016 22:31:09 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aWbme-0000NW-6Y for qemu-devel@nongnu.org; Thu, 18 Feb 2016 22:31:08 -0500 Received: from mx1.redhat.com ([209.132.183.28]:58797) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aWbme-0000NS-1G for qemu-devel@nongnu.org; Thu, 18 Feb 2016 22:31:08 -0500 From: Peter Xu Date: Fri, 19 Feb 2016 11:30:09 +0800 Message-Id: <1455852618-5224-5-git-send-email-peterx@redhat.com> In-Reply-To: <1455852618-5224-1-git-send-email-peterx@redhat.com> References: <1455852618-5224-1-git-send-email-peterx@redhat.com> Subject: [Qemu-devel] [PATCH 04/13] intel_iommu: set IR bit for ECAP register List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: ehabkost@redhat.com, mst@redhat.com, jasowang@redhat.com, peterx@redhat.com, pbonzini@redhat.com, imammedo@redhat.com, rth@twiddle.net Enable IR in IOMMU Extended Capability register. Signed-off-by: Peter Xu --- hw/i386/intel_iommu.c | 4 ++++ hw/i386/intel_iommu_internal.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 4b0558e..79585d2 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -1961,6 +1961,10 @@ 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 (s->intr_supported) { + s->ecap |= VTD_ECAP_IR; + } + vtd_reset_context_cache(s); vtd_reset_iotlb(s); 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 */ -- 2.4.3