diff options
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/group.c | 7 | ||||
| -rw-r--r-- | drivers/vfio/iommufd.c | 4 | ||||
| -rw-r--r-- | drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 14 | ||||
| -rw-r--r-- | drivers/vfio/pci/mlx5/cmd.c | 4 | ||||
| -rw-r--r-- | drivers/vfio/pci/pds/vfio_dev.c | 1 | ||||
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_core.c | 2 | ||||
| -rw-r--r-- | drivers/vfio/vfio_iommu_type1.c | 7 | ||||
| -rw-r--r-- | drivers/vfio/vfio_main.c | 3 |
8 files changed, 28 insertions, 14 deletions
diff --git a/drivers/vfio/group.c b/drivers/vfio/group.c index 95b336de8a17..5f2b2c950bbc 100644 --- a/drivers/vfio/group.c +++ b/drivers/vfio/group.c @@ -194,11 +194,10 @@ static int vfio_df_group_open(struct vfio_device_file *df) * implies they expected translation to exist */ if (!capable(CAP_SYS_RAWIO) || - vfio_iommufd_device_has_compat_ioas(device, df->iommufd)) + vfio_iommufd_device_has_compat_ioas(device, df->iommufd)) { ret = -EPERM; - else - ret = 0; - goto out_put_kvm; + goto out_put_kvm; + } } ret = vfio_df_open(df); diff --git a/drivers/vfio/iommufd.c b/drivers/vfio/iommufd.c index 82eba6966fa5..02852899c2ae 100644 --- a/drivers/vfio/iommufd.c +++ b/drivers/vfio/iommufd.c @@ -25,6 +25,10 @@ int vfio_df_iommufd_bind(struct vfio_device_file *df) lockdep_assert_held(&vdev->dev_set->lock); + /* Returns 0 to permit device opening under noiommu mode */ + if (vfio_device_is_noiommu(vdev)) + return 0; + return vdev->ops->bind_iommufd(vdev, ictx, &df->devid); } diff --git a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c index 68300fcd3c41..dda8cb3262e0 100644 --- a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c +++ b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c @@ -554,12 +554,6 @@ static int vf_qm_state_save(struct hisi_acc_vf_core_device *hisi_acc_vdev, vf_data->vf_qm_state = QM_READY; hisi_acc_vdev->vf_qm_state = vf_data->vf_qm_state; - ret = vf_qm_cache_wb(vf_qm); - if (ret) { - dev_err(dev, "failed to writeback QM Cache!\n"); - return ret; - } - ret = qm_get_regs(vf_qm, vf_data); if (ret) return -EINVAL; @@ -985,6 +979,13 @@ static int hisi_acc_vf_stop_device(struct hisi_acc_vf_core_device *hisi_acc_vdev dev_err(dev, "failed to check QM INT state!\n"); return ret; } + + ret = vf_qm_cache_wb(vf_qm); + if (ret) { + dev_err(dev, "failed to writeback QM cache!\n"); + return ret; + } + return 0; } @@ -1358,6 +1359,7 @@ static void hisi_acc_vfio_pci_close_device(struct vfio_device *core_vdev) struct hisi_acc_vf_core_device, core_device.vdev); struct hisi_qm *vf_qm = &hisi_acc_vdev->vf_qm; + hisi_acc_vf_disable_fds(hisi_acc_vdev); iounmap(vf_qm->io_base); vfio_pci_core_close_device(core_vdev); } diff --git a/drivers/vfio/pci/mlx5/cmd.c b/drivers/vfio/pci/mlx5/cmd.c index eb7387ee6ebd..e7d2251db626 100644 --- a/drivers/vfio/pci/mlx5/cmd.c +++ b/drivers/vfio/pci/mlx5/cmd.c @@ -1538,8 +1538,8 @@ int mlx5vf_start_page_tracker(struct vfio_device *vdev, log_max_msg_size = MLX5_CAP_ADV_VIRTUALIZATION(mdev, pg_track_log_max_msg_size); max_msg_size = (1ULL << log_max_msg_size); /* The RQ must hold at least 4 WQEs/messages for successful QP creation */ - if (rq_size < 4 * max_msg_size) - rq_size = 4 * max_msg_size; + if (rq_size < 4ULL * max_msg_size) + rq_size = 4ULL * max_msg_size; memset(tracker, 0, sizeof(*tracker)); tracker->uar = mlx5_get_uars_page(mdev); diff --git a/drivers/vfio/pci/pds/vfio_dev.c b/drivers/vfio/pci/pds/vfio_dev.c index 76a80ae7087b..f6e0253a8a14 100644 --- a/drivers/vfio/pci/pds/vfio_dev.c +++ b/drivers/vfio/pci/pds/vfio_dev.c @@ -204,6 +204,7 @@ static const struct vfio_device_ops pds_vfio_ops = { .bind_iommufd = vfio_iommufd_physical_bind, .unbind_iommufd = vfio_iommufd_physical_unbind, .attach_ioas = vfio_iommufd_physical_attach_ioas, + .detach_ioas = vfio_iommufd_physical_detach_ioas, }; const struct vfio_device_ops *pds_vfio_ops_info(void) diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c index 087c273a547f..595503fa9ca8 100644 --- a/drivers/vfio/pci/vfio_pci_core.c +++ b/drivers/vfio/pci/vfio_pci_core.c @@ -2153,7 +2153,7 @@ int vfio_pci_core_register_device(struct vfio_pci_core_device *vdev) return -EBUSY; } - if (pci_is_root_bus(pdev->bus)) { + if (pci_is_root_bus(pdev->bus) || pdev->is_virtfn) { ret = vfio_assign_device_set(&vdev->vdev, vdev); } else if (!pci_probe_reset_slot(pdev->slot)) { ret = vfio_assign_device_set(&vdev->vdev, pdev->slot); diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index 8338cfd61fe1..124997ce00d6 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -619,6 +619,13 @@ static long vfio_pin_pages_remote(struct vfio_dma *dma, unsigned long vaddr, while (npage) { if (!batch->size) { + /* + * Large mappings may take a while to repeatedly refill + * the batch, so conditionally relinquish the CPU when + * needed to avoid stalls. + */ + cond_resched(); + /* Empty batch, so refill it. */ long req_pages = min_t(long, npage, batch->capacity); diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c index a5a62d9d963f..ae78822f2d71 100644 --- a/drivers/vfio/vfio_main.c +++ b/drivers/vfio/vfio_main.c @@ -583,7 +583,8 @@ void vfio_df_close(struct vfio_device_file *df) lockdep_assert_held(&device->dev_set->lock); - vfio_assert_device_open(device); + if (!vfio_assert_device_open(device)) + return; if (device->open_count == 1) vfio_df_device_last_close(df); device->open_count--; |