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bh=c4V+CF0c0tfJGcIRze6HrZZVfiawIppVCdw8Py0u0Qk=; b=eKGC2YnbjFq/GbwN1Am6dePOnTFI+DDes3UV5siF07wyUZP1zQIZ/3VlI9P1yu0Qdlw7LK Zsv1gZ8aAM21bVpKa7nSIX+fTBZeVLO/fOrMbejXmV+Qqm6PVw/zO/Lu+3FVs9Z4bAchjU JmieuHsvodSwJQ7CmJ1qbaT6SG+DDY8= X-MC-Unique: Iqf5FkpJNlKBAqck9mhCRQ-1 From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, zhenzhong.duan@intel.com, alex.williamson@redhat.com, clg@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, peterx@redhat.com, kevin.tian@intel.com, yi.l.liu@intel.com, yi.y.sun@intel.com, chao.p.peng@intel.com, mjrosato@linux.ibm.com, aik@ozlabs.ru Subject: [PATCH v4 12/15] vfio/common: Introduce a per container device list Date: Wed, 4 Oct 2023 17:43:59 +0200 Message-ID: <20231004154518.334760-13-eric.auger@redhat.com> In-Reply-To: <20231004154518.334760-1-eric.auger@redhat.com> References: <20231004154518.334760-1-eric.auger@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 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=170.10.129.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, 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 @redhat.com) X-ZM-MESSAGEID: 1696438409876100001 From: Zhenzhong Duan Several functions need to iterate over the VFIO devices attached to a given container. This is currently achieved by iterating over the groups attached to the container and then over the devices in the group. Let's introduce a per container device list that simplifies this search. Per container list is used in below functions: vfio_devices_all_dirty_tracking vfio_devices_all_device_dirty_tracking vfio_devices_all_running_and_mig_active vfio_devices_dma_logging_stop vfio_devices_dma_logging_start vfio_devices_query_dirty_bitmap This will also ease the migration of IOMMUFD by hiding the group specificity. Suggested-by: Alex Williamson Signed-off-by: Zhenzhong Duan Signed-off-by: Eric Auger Reviewed-by: C=C3=A9dric Le Goater --- include/hw/vfio/vfio-common.h | 2 + hw/vfio/common.c | 145 +++++++++++++++------------------- 2 files changed, 67 insertions(+), 80 deletions(-) diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index c486bdef2a..8ca70dd821 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -98,6 +98,7 @@ typedef struct VFIOContainer { QLIST_HEAD(, VFIOGroup) group_list; QLIST_HEAD(, VFIORamDiscardListener) vrdl_list; QLIST_ENTRY(VFIOContainer) next; + QLIST_HEAD(, VFIODevice) device_list; } VFIOContainer; =20 typedef struct VFIOGuestIOMMU { @@ -129,6 +130,7 @@ typedef struct VFIODeviceOps VFIODeviceOps; =20 typedef struct VFIODevice { QLIST_ENTRY(VFIODevice) next; + QLIST_ENTRY(VFIODevice) container_next; struct VFIOGroup *group; char *sysfsdev; char *name; diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 019da387d2..ef9dc7c747 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -218,7 +218,6 @@ bool vfio_device_state_is_precopy(VFIODevice *vbasedev) =20 static bool vfio_devices_all_dirty_tracking(VFIOContainer *container) { - VFIOGroup *group; VFIODevice *vbasedev; MigrationState *ms =3D migrate_get_current(); =20 @@ -227,19 +226,17 @@ static bool vfio_devices_all_dirty_tracking(VFIOConta= iner *container) return false; } =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - VFIOMigration *migration =3D vbasedev->migration; + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + VFIOMigration *migration =3D vbasedev->migration; =20 - if (!migration) { - return false; - } + if (!migration) { + return false; + } =20 - if (vbasedev->pre_copy_dirty_page_tracking =3D=3D ON_OFF_AUTO_= OFF && - (vfio_device_state_is_running(vbasedev) || - vfio_device_state_is_precopy(vbasedev))) { - return false; - } + if (vbasedev->pre_copy_dirty_page_tracking =3D=3D ON_OFF_AUTO_OFF = && + (vfio_device_state_is_running(vbasedev) || + vfio_device_state_is_precopy(vbasedev))) { + return false; } } return true; @@ -247,14 +244,11 @@ static bool vfio_devices_all_dirty_tracking(VFIOConta= iner *container) =20 static bool vfio_devices_all_device_dirty_tracking(VFIOContainer *containe= r) { - VFIOGroup *group; VFIODevice *vbasedev; =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - if (!vbasedev->dirty_pages_supported) { - return false; - } + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + if (!vbasedev->dirty_pages_supported) { + return false; } } =20 @@ -267,27 +261,24 @@ static bool vfio_devices_all_device_dirty_tracking(VF= IOContainer *container) */ static bool vfio_devices_all_running_and_mig_active(VFIOContainer *contain= er) { - VFIOGroup *group; VFIODevice *vbasedev; =20 if (!migration_is_active(migrate_get_current())) { return false; } =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - VFIOMigration *migration =3D vbasedev->migration; + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + VFIOMigration *migration =3D vbasedev->migration; =20 - if (!migration) { - return false; - } + if (!migration) { + return false; + } =20 - if (vfio_device_state_is_running(vbasedev) || - vfio_device_state_is_precopy(vbasedev)) { - continue; - } else { - return false; - } + if (vfio_device_state_is_running(vbasedev) || + vfio_device_state_is_precopy(vbasedev)) { + continue; + } else { + return false; } } return true; @@ -1187,20 +1178,17 @@ static bool vfio_section_is_vfio_pci(MemoryRegionSe= ction *section, { VFIOPCIDevice *pcidev; VFIODevice *vbasedev; - VFIOGroup *group; Object *owner; =20 owner =3D memory_region_owner(section->mr); =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - if (vbasedev->type !=3D VFIO_DEVICE_TYPE_PCI) { - continue; - } - pcidev =3D container_of(vbasedev, VFIOPCIDevice, vbasedev); - if (OBJECT(pcidev) =3D=3D owner) { - return true; - } + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + if (vbasedev->type !=3D VFIO_DEVICE_TYPE_PCI) { + continue; + } + pcidev =3D container_of(vbasedev, VFIOPCIDevice, vbasedev); + if (OBJECT(pcidev) =3D=3D owner) { + return true; } } =20 @@ -1296,24 +1284,21 @@ static void vfio_devices_dma_logging_stop(VFIOConta= iner *container) sizeof(uint64_t))] =3D {}; struct vfio_device_feature *feature =3D (struct vfio_device_feature *)= buf; VFIODevice *vbasedev; - VFIOGroup *group; =20 feature->argsz =3D sizeof(buf); feature->flags =3D VFIO_DEVICE_FEATURE_SET | VFIO_DEVICE_FEATURE_DMA_LOGGING_STOP; =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - if (!vbasedev->dirty_tracking) { - continue; - } - - if (ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature)) { - warn_report("%s: Failed to stop DMA logging, err %d (%s)", - vbasedev->name, -errno, strerror(errno)); - } - vbasedev->dirty_tracking =3D false; + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + if (!vbasedev->dirty_tracking) { + continue; } + + if (ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature)) { + warn_report("%s: Failed to stop DMA logging, err %d (%s)", + vbasedev->name, -errno, strerror(errno)); + } + vbasedev->dirty_tracking =3D false; } } =20 @@ -1396,7 +1381,6 @@ static int vfio_devices_dma_logging_start(VFIOContain= er *container) struct vfio_device_feature *feature; VFIODirtyRanges ranges; VFIODevice *vbasedev; - VFIOGroup *group; int ret =3D 0; =20 vfio_dirty_tracking_init(container, &ranges); @@ -1406,21 +1390,19 @@ static int vfio_devices_dma_logging_start(VFIOConta= iner *container) return -errno; } =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - if (vbasedev->dirty_tracking) { - continue; - } - - ret =3D ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature); - if (ret) { - ret =3D -errno; - error_report("%s: Failed to start DMA logging, err %d (%s)= ", - vbasedev->name, ret, strerror(errno)); - goto out; - } - vbasedev->dirty_tracking =3D true; + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + if (vbasedev->dirty_tracking) { + continue; } + + ret =3D ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature); + if (ret) { + ret =3D -errno; + error_report("%s: Failed to start DMA logging, err %d (%s)", + vbasedev->name, ret, strerror(errno)); + goto out; + } + vbasedev->dirty_tracking =3D true; } =20 out: @@ -1500,21 +1482,18 @@ static int vfio_devices_query_dirty_bitmap(VFIOCont= ainer *container, hwaddr size) { VFIODevice *vbasedev; - VFIOGroup *group; int ret; =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - ret =3D vfio_device_dma_logging_report(vbasedev, iova, size, - vbmap->bitmap); - if (ret) { - error_report("%s: Failed to get DMA logging report, iova: " - "0x%" HWADDR_PRIx ", size: 0x%" HWADDR_PRIx - ", err: %d (%s)", - vbasedev->name, iova, size, ret, strerror(-re= t)); + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + ret =3D vfio_device_dma_logging_report(vbasedev, iova, size, + vbmap->bitmap); + if (ret) { + error_report("%s: Failed to get DMA logging report, iova: " + "0x%" HWADDR_PRIx ", size: 0x%" HWADDR_PRIx + ", err: %d (%s)", + vbasedev->name, iova, size, ret, strerror(-ret)); =20 - return ret; - } + return ret; } } =20 @@ -2648,6 +2627,7 @@ int vfio_attach_device(char *name, VFIODevice *vbased= ev, int groupid =3D vfio_device_groupid(vbasedev, errp); VFIODevice *vbasedev_iter; VFIOGroup *group; + VFIOContainer *container; int ret; =20 if (groupid < 0) { @@ -2671,8 +2651,12 @@ int vfio_attach_device(char *name, VFIODevice *vbase= dev, ret =3D vfio_get_device(group, name, vbasedev, errp); if (ret) { vfio_put_group(group); + return ret; } =20 + container =3D group->container; + QLIST_INSERT_HEAD(&container->device_list, vbasedev, container_next); + return ret; } =20 @@ -2680,6 +2664,7 @@ void vfio_detach_device(VFIODevice *vbasedev) { VFIOGroup *group =3D vbasedev->group; =20 + QLIST_REMOVE(vbasedev, container_next); trace_vfio_detach_device(vbasedev->name, group->groupid); vfio_put_base_device(vbasedev); vfio_put_group(group); --=20 2.41.0