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a="373016707" X-IronPort-AV: E=Sophos;i="6.02,213,1688454000"; d="scan'208";a="373016707" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10817"; a="715866287" X-IronPort-AV: E=Sophos;i="6.02,213,1688454000"; d="scan'208";a="715866287" From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, eric.auger@redhat.com, peterx@redhat.com, jasowang@redhat.com, kevin.tian@intel.com, yi.l.liu@intel.com, yi.y.sun@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v1 19/22] vfio/iommufd: Add vfio device iterator callback for iommufd Date: Wed, 30 Aug 2023 18:37:51 +0800 Message-Id: <20230830103754.36461-20-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230830103754.36461-1-zhenzhong.duan@intel.com> References: <20230830103754.36461-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 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=192.55.52.93; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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_MED=-2.3, 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 @intel.com) X-ZM-MESSAGEID: 1693392940752100021 Content-Type: text/plain; charset="utf-8" The way to get vfio device pointer is different between legacy container and iommufd container, with iommufd backend support added, it's time to add the iterator support for iommufd. Signed-off-by: Zhenzhong Duan --- hw/vfio/iommufd.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index 876d0e4928..dd24e76e39 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -36,6 +36,34 @@ #include "qemu/cutils.h" #include "qemu/char_dev.h" =20 +static VFIODevice *iommufd_dev_iter_next(VFIOContainer *bcontainer, + VFIODevice *curr) +{ + + VFIOIOASHwpt *hwpt; + + assert(object_class_dynamic_cast(OBJECT_CLASS(bcontainer->ops), + TYPE_VFIO_IOMMU_BACKEND_IOMMUFD_OPS)); + + VFIOIOMMUFDContainer *container =3D container_of(bcontainer, + VFIOIOMMUFDContainer, + bcontainer); + + if (!curr) { + hwpt =3D QLIST_FIRST(&container->hwpt_list); + } else { + if (curr->next.le_next) { + return curr->next.le_next; + } + hwpt =3D curr->hwpt->next.le_next; + } + + if (!hwpt) { + return NULL; + } + return QLIST_FIRST(&hwpt->device_list); +} + static int iommufd_map(VFIOContainer *bcontainer, hwaddr iova, ram_addr_t size, void *vaddr, bool readonly) { @@ -501,6 +529,7 @@ static void vfio_iommu_backend_iommufd_ops_class_init(O= bjectClass *oc, void *data) { VFIOIOMMUBackendOpsClass *ops =3D VFIO_IOMMU_BACKEND_OPS_CLASS(oc); =20 + ops->dev_iter_next =3D iommufd_dev_iter_next; ops->dma_map =3D iommufd_map; ops->dma_unmap =3D iommufd_unmap; ops->attach_device =3D iommufd_attach_device; --=20 2.34.1