diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-05-11 22:12:59 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2022-05-11 22:12:59 +0300 |
| commit | 8e432bb015b6c327d016b1dca509964e189c4770 (patch) | |
| tree | 500ed0764fa8143885653368db0625470d3e42b8 /drivers/s390 | |
| parent | 0a58795647cd4300470788ffdbff6b29b5f00632 (diff) | |
| download | linux-8e432bb015b6c327d016b1dca509964e189c4770.tar.xz | |
vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages()
Every caller has a readily available vfio_device pointer, use that instead
of passing in a generic struct device. The struct vfio_device already
contains the group we need so this avoids complexity, extra refcountings,
and a confusing lifecycle model.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/3-v4-8045e76bf00b+13d-vfio_mdev_no_group_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_cp.c | 6 | ||||
| -rw-r--r-- | drivers/s390/crypto/vfio_ap_ops.c | 9 |
2 files changed, 7 insertions, 8 deletions
diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c index 7a1cf3091cd6..0c2be9421ab7 100644 --- a/drivers/s390/cio/vfio_ccw_cp.c +++ b/drivers/s390/cio/vfio_ccw_cp.c @@ -103,13 +103,13 @@ static int pfn_array_pin(struct pfn_array *pa, struct vfio_device *vdev) { int ret = 0; - ret = vfio_pin_pages(vdev->dev, pa->pa_iova_pfn, pa->pa_nr, + ret = vfio_pin_pages(vdev, pa->pa_iova_pfn, pa->pa_nr, IOMMU_READ | IOMMU_WRITE, pa->pa_pfn); if (ret < 0) { goto err_out; } else if (ret > 0 && ret != pa->pa_nr) { - vfio_unpin_pages(vdev->dev, pa->pa_iova_pfn, ret); + vfio_unpin_pages(vdev, pa->pa_iova_pfn, ret); ret = -EINVAL; goto err_out; } @@ -127,7 +127,7 @@ static void pfn_array_unpin_free(struct pfn_array *pa, struct vfio_device *vdev) { /* Only unpin if any pages were pinned to begin with */ if (pa->pa_nr) - vfio_unpin_pages(vdev->dev, pa->pa_iova_pfn, pa->pa_nr); + vfio_unpin_pages(vdev, pa->pa_iova_pfn, pa->pa_nr); pa->pa_nr = 0; kfree(pa->pa_iova_pfn); } diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c index bfa7ee6ef532..e8914024f5b1 100644 --- a/drivers/s390/crypto/vfio_ap_ops.c +++ b/drivers/s390/crypto/vfio_ap_ops.c @@ -124,8 +124,7 @@ static void vfio_ap_free_aqic_resources(struct vfio_ap_queue *q) q->saved_isc = VFIO_AP_ISC_INVALID; } if (q->saved_pfn && !WARN_ON(!q->matrix_mdev)) { - vfio_unpin_pages(mdev_dev(q->matrix_mdev->mdev), - &q->saved_pfn, 1); + vfio_unpin_pages(&q->matrix_mdev->vdev, &q->saved_pfn, 1); q->saved_pfn = 0; } } @@ -258,7 +257,7 @@ static struct ap_queue_status vfio_ap_irq_enable(struct vfio_ap_queue *q, return status; } - ret = vfio_pin_pages(mdev_dev(q->matrix_mdev->mdev), &g_pfn, 1, + ret = vfio_pin_pages(&q->matrix_mdev->vdev, &g_pfn, 1, IOMMU_READ | IOMMU_WRITE, &h_pfn); switch (ret) { case 1: @@ -301,7 +300,7 @@ static struct ap_queue_status vfio_ap_irq_enable(struct vfio_ap_queue *q, break; case AP_RESPONSE_OTHERWISE_CHANGED: /* We could not modify IRQ setings: clear new configuration */ - vfio_unpin_pages(mdev_dev(q->matrix_mdev->mdev), &g_pfn, 1); + vfio_unpin_pages(&q->matrix_mdev->vdev, &g_pfn, 1); kvm_s390_gisc_unregister(kvm, isc); break; default: @@ -1250,7 +1249,7 @@ static int vfio_ap_mdev_iommu_notifier(struct notifier_block *nb, struct vfio_iommu_type1_dma_unmap *unmap = data; unsigned long g_pfn = unmap->iova >> PAGE_SHIFT; - vfio_unpin_pages(mdev_dev(matrix_mdev->mdev), &g_pfn, 1); + vfio_unpin_pages(&matrix_mdev->vdev, &g_pfn, 1); return NOTIFY_OK; } |