From patchwork Fri Sep 21 08:18:19 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 972961 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 42GnWC5bhSz9sC7 for ; Fri, 21 Sep 2018 18:55:51 +1000 (AEST) Received: from localhost ([::1]:54585 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g3HE5-0004wg-D8 for incoming@patchwork.ozlabs.org; Fri, 21 Sep 2018 04:55:49 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48887) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g3GhP-0006D0-Pg for qemu-devel@nongnu.org; Fri, 21 Sep 2018 04:22:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1g3GhO-0000bA-OR for qemu-devel@nongnu.org; Fri, 21 Sep 2018 04:22:03 -0400 Received: from mx1.redhat.com ([209.132.183.28]:54494) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1g3GhI-0000Hn-UC; Fri, 21 Sep 2018 04:21:57 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 199A019CF61; Fri, 21 Sep 2018 08:21:56 +0000 (UTC) Received: from laptop.redhat.com (ovpn-117-87.ams2.redhat.com [10.36.117.87]) by smtp.corp.redhat.com (Postfix) with ESMTP id C3D907D665; Fri, 21 Sep 2018 08:21:53 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, peter.maydell@linaro.org Date: Fri, 21 Sep 2018 10:18:19 +0200 Message-Id: <20180921081819.9203-29-eric.auger@redhat.com> In-Reply-To: <20180921081819.9203-1-eric.auger@redhat.com> References: <20180921081819.9203-1-eric.auger@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Fri, 21 Sep 2018 08:21:56 +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] [RFC v2 28/28] hw/arm/smmuv3: Implement fault injection 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: yi.l.liu@intel.com, cdall@kernel.org, mst@redhat.com, jean-philippe.brucker@arm.com, peterx@redhat.com, alex.williamson@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" We convert iommu_fault structs received from the kernel into the data struct used by the emulation code and record the evnts into the virtual event queue. Signed-off-by: Eric Auger --- Exhaustive mapping remains to be done --- hw/arm/smmuv3.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c index ae27cfdfa0..7ecc6c9669 100644 --- a/hw/arm/smmuv3.c +++ b/hw/arm/smmuv3.c @@ -1561,6 +1561,81 @@ smmuv3_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n) { } +static inline int +smmuv3_inject_faults(IOMMUMemoryRegion *iommu_mr, int count, + struct iommu_fault *buf) +{ + SMMUDevice *sdev = container_of(iommu_mr, SMMUDevice, iommu); + SMMUv3State *s3 = sdev->smmu; + uint32_t sid = smmu_get_sid(sdev); + int i; + + for (i = 0; i < count; i++) { + SMMUEventInfo info = {}; + + if (buf[i].type != IOMMU_FAULT_DMA_UNRECOV) { + continue; + } + + info.sid = sid; + + switch (buf[i].reason) { + case IOMMU_FAULT_REASON_UNKNOWN: + case IOMMU_FAULT_REASON_INTERNAL: + break; + case IOMMU_FAULT_REASON_PASID_FETCH: + info.type = SMMU_EVT_F_CD_FETCH; + break; + case IOMMU_FAULT_REASON_DEVICE_CONTEXT_FETCH: + info.type = SMMU_EVT_F_STE_FETCH; + info.u.f_cd_fetch.addr = buf[i].fetch_addr; + break; + case IOMMU_FAULT_REASON_BAD_PASID_ENTRY: + info.type = SMMU_EVT_C_BAD_CD; + /* TODO further fill info.u.c_bad_cd */ + break; + case IOMMU_FAULT_REASON_BAD_DEVICE_CONTEXT_ENTRY: + info.type = SMMU_EVT_C_BAD_STE; + /* TODO further fill info.u.f_ste_fetch */ + break; + case IOMMU_FAULT_REASON_PASID_INVALID: + info.type = SMMU_EVT_C_BAD_SUBSTREAMID; + /* TODO further fill info.u.c_bad_substream */ + break; + case IOMMU_FAULT_REASON_SOURCEID_INVALID: + info.type = SMMU_EVT_C_BAD_STREAMID; + /* TODO further fill info.u.c_bad_streamid */ + break; + case IOMMU_FAULT_REASON_WALK_EABT: + info.type = SMMU_EVT_F_WALK_EABT; + info.u.f_walk_eabt.addr = buf[i].addr; + info.u.f_walk_eabt.addr2 = buf[i].fetch_addr; + break; + case IOMMU_FAULT_REASON_PTE_FETCH: + info.type = SMMU_EVT_F_TRANSLATION; + info.u.f_translation.addr = buf[i].addr; + break; + case IOMMU_FAULT_REASON_PERMISSION: + info.type = SMMU_EVT_F_PERMISSION; + info.u.f_permission.addr = buf[i].addr; + break; + case IOMMU_FAULT_REASON_ACCESS: + info.type = SMMU_EVT_F_ACCESS; + info.u.f_access.addr = buf[i].addr; + break; + case IOMMU_FAULT_REASON_OOR_ADDRESS: + info.type = SMMU_EVT_F_ADDR_SIZE; + info.u.f_addr_size.addr = buf[i].addr; + break; + default: + break; + } + + smmuv3_record_event(s3, &info); + } + return 0; +} + static void smmuv3_iommu_memory_region_class_init(ObjectClass *klass, void *data) { @@ -1570,6 +1645,7 @@ static void smmuv3_iommu_memory_region_class_init(ObjectClass *klass, imrc->notify_flag_changed = smmuv3_notify_flag_changed; imrc->get_attr = smmuv3_get_attr; imrc->replay = smmuv3_replay; + imrc->inject_faults = smmuv3_inject_faults; } static const TypeInfo smmuv3_type_info = {