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bh=bWEN9W3CSh/fuwVHUFsScmrUiqJMJE6m9Ra8jyjW+gw=; b=GnkPeg6v66lqANgSExVqiBNHUFW2Ho1mp9p810iSstK/V3OyjayVb5VjkXj6/trkZ8n6ds VRoU6FoNl/ClJTo2u0EgvizMYyD32pu89fd9QGZA2uBGO9nrYe/vd+svKiWZ+KwjyzrN5u rzNDZb1syoqXMNJO2zTSJg5pTxoQDoE= X-MC-Unique: DiHAwfLwMxe4YW1zpsxH2g-1 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, mst@redhat.com, alex.williamson@redhat.com, jacob.jun.pan@linux.intel.com, yi.l.liu@intel.com Subject: [RFC v8 25/28] hw/arm/smmuv3: Implement fault injection Date: Thu, 25 Feb 2021 11:52:30 +0100 Message-Id: <20210225105233.650545-26-eric.auger@redhat.com> In-Reply-To: <20210225105233.650545-1-eric.auger@redhat.com> References: <20210225105233.650545-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eric.auger@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=63.128.21.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jean-philippe@linaro.org, tnowicki@marvell.com, maz@kernel.org, jiangkunkun@huawei.com, zhangfei.gao@foxmail.com, peterx@redhat.com, shameerali.kolothum.thodi@huawei.com, yuzenghui@huawei.com, zhangfei.gao@linaro.org, will@kernel.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" 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 --- v3 -> v4: - fix compil issue on mingw Exhaustive mapping remains to be done --- hw/arm/smmuv3.c | 71 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c index 03cc299710..a61c1129d9 100644 --- a/hw/arm/smmuv3.c +++ b/hw/arm/smmuv3.c @@ -1650,6 +1650,76 @@ static int smmuv3_get_attr(IOMMUMemoryRegion *iommu, return -EINVAL; } =20 +struct iommu_fault; + +static inline int +smmuv3_inject_faults(IOMMUMemoryRegion *iommu_mr, int count, + struct iommu_fault *buf) +{ +#ifdef __linux__ + SMMUDevice *sdev =3D container_of(iommu_mr, SMMUDevice, iommu); + SMMUv3State *s3 =3D sdev->smmu; + uint32_t sid =3D smmu_get_sid(sdev); + int i; + + for (i =3D 0; i < count; i++) { + SMMUEventInfo info =3D {}; + struct iommu_fault_unrecoverable *record; + + if (buf[i].type !=3D IOMMU_FAULT_DMA_UNRECOV) { + continue; + } + + info.sid =3D sid; + record =3D &buf[i].event; + + switch (record->reason) { + case IOMMU_FAULT_REASON_PASID_INVALID: + info.type =3D SMMU_EVT_C_BAD_SUBSTREAMID; + /* TODO further fill info.u.c_bad_substream */ + break; + case IOMMU_FAULT_REASON_PASID_FETCH: + info.type =3D SMMU_EVT_F_CD_FETCH; + break; + case IOMMU_FAULT_REASON_BAD_PASID_ENTRY: + info.type =3D SMMU_EVT_C_BAD_CD; + /* TODO further fill info.u.c_bad_cd */ + break; + case IOMMU_FAULT_REASON_WALK_EABT: + info.type =3D SMMU_EVT_F_WALK_EABT; + info.u.f_walk_eabt.addr =3D record->addr; + info.u.f_walk_eabt.addr2 =3D record->fetch_addr; + break; + case IOMMU_FAULT_REASON_PTE_FETCH: + info.type =3D SMMU_EVT_F_TRANSLATION; + info.u.f_translation.addr =3D record->addr; + break; + case IOMMU_FAULT_REASON_OOR_ADDRESS: + info.type =3D SMMU_EVT_F_ADDR_SIZE; + info.u.f_addr_size.addr =3D record->addr; + break; + case IOMMU_FAULT_REASON_ACCESS: + info.type =3D SMMU_EVT_F_ACCESS; + info.u.f_access.addr =3D record->addr; + break; + case IOMMU_FAULT_REASON_PERMISSION: + info.type =3D SMMU_EVT_F_PERMISSION; + info.u.f_permission.addr =3D record->addr; + break; + default: + warn_report("%s Unexpected fault reason received from host: %d= ", + __func__, record->reason); + continue; + } + + smmuv3_record_event(s3, &info); + } + return 0; +#else + return -1; +#endif +} + static void smmuv3_iommu_memory_region_class_init(ObjectClass *klass, void *data) { @@ -1658,6 +1728,7 @@ static void smmuv3_iommu_memory_region_class_init(Obj= ectClass *klass, imrc->translate =3D smmuv3_translate; imrc->notify_flag_changed =3D smmuv3_notify_flag_changed; imrc->get_attr =3D smmuv3_get_attr; + imrc->inject_faults =3D smmuv3_inject_faults; } =20 static const TypeInfo smmuv3_type_info =3D { --=20 2.26.2