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a="402676829" X-IronPort-AV: E=Sophos;i="6.05,234,1701158400"; d="scan'208";a="402676829" X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.05,234,1701158400"; d="scan'208";a="4443327" From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, eric.auger@redhat.com, peterx@redhat.com, jasowang@redhat.com, mst@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, kevin.tian@intel.com, yi.l.liu@intel.com, yi.y.sun@intel.com, chao.p.peng@intel.com, Zhenzhong Duan , Yi Sun Subject: [PATCH rfcv2 12/18] vfio: Initialize host IOMMU device and pass to vIOMMU Date: Thu, 1 Feb 2024 15:28:12 +0800 Message-Id: <20240201072818.327930-13-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240201072818.327930-1-zhenzhong.duan@intel.com> References: <20240201072818.327930-1-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=192.55.52.120; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -56 X-Spam_score: -5.7 X-Spam_bar: ----- X-Spam_report: (-5.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.292, 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, T_SCC_BODY_TEXT_LINE=-0.01 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: 1706772818189100007 Content-Type: text/plain; charset="utf-8" Initialize host IOMMU device in vfio and pass to vIOMMU, so that vIOMMU could get hw IOMMU information. Support both iommufd and legacy backend. Originally-by: Yi Liu Signed-off-by: Nicolin Chen Signed-off-by: Yi Sun Signed-off-by: Zhenzhong Duan --- hw/vfio/pci.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index dedb64fc08..b23c5ea790 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3112,11 +3112,17 @@ static void vfio_realize(PCIDevice *pdev, Error **e= rrp) =20 vfio_bars_register(vdev); =20 - ret =3D vfio_add_capabilities(vdev, errp); + ret =3D pci_device_set_iommu_device(pdev, &vbasedev->base_hdev, errp); if (ret) { + error_prepend(errp, "Failed to set iommu_device: "); goto out_teardown; } =20 + ret =3D vfio_add_capabilities(vdev, errp); + if (ret) { + goto out_unset_idev; + } + if (vdev->vga) { vfio_vga_quirk_setup(vdev); } @@ -3133,7 +3139,7 @@ static void vfio_realize(PCIDevice *pdev, Error **err= p) error_setg(errp, "cannot support IGD OpRegion feature on hotplugged " "device"); - goto out_teardown; + goto out_unset_idev; } =20 ret =3D vfio_get_dev_region_info(vbasedev, @@ -3142,13 +3148,13 @@ static void vfio_realize(PCIDevice *pdev, Error **e= rrp) if (ret) { error_setg_errno(errp, -ret, "does not support requested IGD OpRegion feat= ure"); - goto out_teardown; + goto out_unset_idev; } =20 ret =3D vfio_pci_igd_opregion_init(vdev, opregion, errp); g_free(opregion); if (ret) { - goto out_teardown; + goto out_unset_idev; } } =20 @@ -3234,6 +3240,8 @@ out_deregister: if (vdev->intx.mmap_timer) { timer_free(vdev->intx.mmap_timer); } +out_unset_idev: + pci_device_unset_iommu_device(pdev); out_teardown: vfio_teardown_msi(vdev); vfio_bars_exit(vdev); @@ -3262,6 +3270,7 @@ static void vfio_instance_finalize(Object *obj) static void vfio_exitfn(PCIDevice *pdev) { VFIOPCIDevice *vdev =3D VFIO_PCI(pdev); + VFIODevice *vbasedev =3D &vdev->vbasedev; =20 vfio_unregister_req_notifier(vdev); vfio_unregister_err_notifier(vdev); @@ -3276,7 +3285,8 @@ static void vfio_exitfn(PCIDevice *pdev) vfio_teardown_msi(vdev); vfio_pci_disable_rp_atomics(vdev); vfio_bars_exit(vdev); - vfio_migration_exit(&vdev->vbasedev); + vfio_migration_exit(vbasedev); + pci_device_unset_iommu_device(pdev); } =20 static void vfio_pci_reset(DeviceState *dev) --=20 2.34.1