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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.177.32; envelope-from=joao.m.martins@oracle.com; helo=mx0b-00069f02.pphosted.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_MED=-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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @oracle.com) X-ZM-MESSAGEID: 1721390831415116600 Content-Type: text/plain; charset="utf-8" ioctl(iommufd, IOMMU_HWPT_SET_DIRTY_TRACKING, arg) is the UAPI that enables or disables dirty page tracking. The ioctl is used if the hwpt has been created with dirty tracking supported domain (stored in hwpt::flags) and it is called on the whole list of iommu domains. Signed-off-by: Joao Martins --- include/sysemu/iommufd.h | 2 ++ backends/iommufd.c | 23 +++++++++++++++++++++++ hw/vfio/iommufd.c | 32 ++++++++++++++++++++++++++++++++ backends/trace-events | 1 + 4 files changed, 58 insertions(+) diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h index e917e7591d05..6fb412f61144 100644 --- a/include/sysemu/iommufd.h +++ b/include/sysemu/iommufd.h @@ -55,6 +55,8 @@ bool iommufd_backend_alloc_hwpt(IOMMUFDBackend *be, uint3= 2_t dev_id, uint32_t data_type, uint32_t data_len, void *data_ptr, uint32_t *out_hwpt, Error **errp); +bool iommufd_backend_set_dirty_tracking(IOMMUFDBackend *be, uint32_t hwpt_= id, + bool start, Error **errp); =20 #define TYPE_HOST_IOMMU_DEVICE_IOMMUFD TYPE_HOST_IOMMU_DEVICE "-iommufd" #endif diff --git a/backends/iommufd.c b/backends/iommufd.c index 58032e588f49..1ae4751a1b2c 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -239,6 +239,29 @@ bool iommufd_backend_alloc_hwpt(IOMMUFDBackend *be, ui= nt32_t dev_id, return true; } =20 +bool iommufd_backend_set_dirty_tracking(IOMMUFDBackend *be, + uint32_t hwpt_id, bool start, + Error **errp) +{ + int ret; + struct iommu_hwpt_set_dirty_tracking set_dirty =3D { + .size =3D sizeof(set_dirty), + .hwpt_id =3D hwpt_id, + .flags =3D start ? IOMMU_HWPT_DIRTY_TRACKING_ENABLE : 0, + }; + + ret =3D ioctl(be->fd, IOMMU_HWPT_SET_DIRTY_TRACKING, &set_dirty); + trace_iommufd_backend_set_dirty(be->fd, hwpt_id, start, ret ? errno : = 0); + if (ret) { + error_setg_errno(errp, errno, + "IOMMU_HWPT_SET_DIRTY_TRACKING(hwpt_id %u) failed= ", + hwpt_id); + return false; + } + + return true; +} + bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, uint32_t *type, void *data, uint32_t = len, uint64_t *caps, Error **errp) diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index 2e5c207bbca0..7137faaf4540 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -115,6 +115,37 @@ static bool iommufd_hwpt_dirty_tracking(VFIOIOASHwpt *= hwpt) return hwpt && hwpt->hwpt_flags & IOMMU_HWPT_ALLOC_DIRTY_TRACKING; } =20 +static int iommufd_set_dirty_page_tracking(const VFIOContainerBase *bconta= iner, + bool start, Error **errp) +{ + const VFIOIOMMUFDContainer *container =3D + container_of(bcontainer, VFIOIOMMUFDContainer, bcontainer); + VFIOIOASHwpt *hwpt; + + QLIST_FOREACH(hwpt, &container->hwpt_list, next) { + if (!iommufd_hwpt_dirty_tracking(hwpt)) { + continue; + } + + if (!iommufd_backend_set_dirty_tracking(container->be, + hwpt->hwpt_id, start, errp= )) { + goto err; + } + } + + return 0; + +err: + QLIST_FOREACH(hwpt, &container->hwpt_list, next) { + if (!iommufd_hwpt_dirty_tracking(hwpt)) { + continue; + } + iommufd_backend_set_dirty_tracking(container->be, + hwpt->hwpt_id, !start, NULL); + } + return -EINVAL; +} + static int iommufd_cdev_getfd(const char *sysfs_path, Error **errp) { ERRP_GUARD(); @@ -724,6 +755,7 @@ static void vfio_iommu_iommufd_class_init(ObjectClass *= klass, void *data) vioc->attach_device =3D iommufd_cdev_attach; vioc->detach_device =3D iommufd_cdev_detach; vioc->pci_hot_reset =3D iommufd_cdev_pci_hot_reset; + vioc->set_dirty_page_tracking =3D iommufd_set_dirty_page_tracking; }; =20 static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque, diff --git a/backends/trace-events b/backends/trace-events index 4d8ac02fe7d6..28aca3b859d4 100644 --- a/backends/trace-events +++ b/backends/trace-events @@ -16,3 +16,4 @@ iommufd_backend_unmap_dma(int iommufd, uint32_t ioas, uin= t64_t iova, uint64_t si iommufd_backend_alloc_ioas(int iommufd, uint32_t ioas) " iommufd=3D%d ioas= =3D%d" iommufd_backend_alloc_hwpt(int iommufd, uint32_t dev_id, uint32_t pt_id, u= int32_t flags, uint32_t hwpt_type, uint32_t len, uint64_t data_ptr, uint32_= t out_hwpt_id, int ret) " iommufd=3D%d dev_id=3D%u pt_id=3D%u flags=3D0x%x = hwpt_type=3D%u len=3D%u data_ptr=3D0x%"PRIx64" out_hwpt=3D%u (%d)" iommufd_backend_free_id(int iommufd, uint32_t id, int ret) " iommufd=3D%d = id=3D%d (%d)" +iommufd_backend_set_dirty(int iommufd, uint32_t hwpt_id, bool start, int r= et) " iommufd=3D%d hwpt=3D%u enable=3D%d (%d)" --=20 2.17.2