From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59913) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1apS5b-0008Ft-2X for qemu-devel@nongnu.org; Sun, 10 Apr 2016 23:00:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1apS5X-0008SE-Sd for qemu-devel@nongnu.org; Sun, 10 Apr 2016 23:00:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60545) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1apS5X-0008SA-NB for qemu-devel@nongnu.org; Sun, 10 Apr 2016 23:00:31 -0400 From: Peter Xu Date: Mon, 11 Apr 2016 11:00:21 +0800 Message-Id: <1460343621-24503-1-git-send-email-peterx@redhat.com> Subject: [Qemu-devel] [PATCH] intel_iommu: fix incorrect mask for IOTLB invalidate desc List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: mst@redhat.com, pbonzini@redhat.com, rth@twiddle.net, ehabkost@redhat.com, peterx@redhat.com Address Mask (AM) should be 6 bits long, not 7. (vt-d spec 6.5.2.3) Signed-off-by: Peter Xu --- hw/i386/intel_iommu_internal.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index e5f514c..db7da18 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -315,7 +315,7 @@ typedef struct VTDInvDesc VTDInvDesc; #define VTD_INV_DESC_IOTLB_DID(val) (((val) >> 16) & VTD_DOMAIN_ID_MASK) #define VTD_INV_DESC_IOTLB_ADDR(val) ((val) & ~0xfffULL & \ ((1ULL << VTD_MGAW) - 1)) -#define VTD_INV_DESC_IOTLB_AM(val) ((val) & 0x3fULL) +#define VTD_INV_DESC_IOTLB_AM(val) ((val) & 0x2fULL) #define VTD_INV_DESC_IOTLB_RSVD_LO 0xffffffff0000ff00ULL #define VTD_INV_DESC_IOTLB_RSVD_HI 0xf80ULL -- 2.4.3