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path: root/drivers/gpu/drm/i915/gvt/kvmgt.c
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Diffstat (limited to 'drivers/gpu/drm/i915/gvt/kvmgt.c')
-rw-r--r--drivers/gpu/drm/i915/gvt/kvmgt.c49
1 files changed, 40 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index d641214578a7..1ae0b4083ce1 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -295,10 +295,12 @@ static ssize_t description_show(struct kobject *kobj, struct device *dev,
return 0;
return sprintf(buf, "low_gm_size: %dMB\nhigh_gm_size: %dMB\n"
- "fence: %d\nresolution: %s\n",
+ "fence: %d\nresolution: %s\n"
+ "weight: %d\n",
BYTES_TO_MB(type->low_gm_size),
BYTES_TO_MB(type->high_gm_size),
- type->fence, vgpu_edid_str(type->resolution));
+ type->fence, vgpu_edid_str(type->resolution),
+ type->weight);
}
static MDEV_TYPE_ATTR_RO(available_instances);
@@ -544,6 +546,8 @@ static int intel_vgpu_open(struct mdev_device *mdev)
if (ret)
goto undo_group;
+ intel_gvt_ops->vgpu_activate(vgpu);
+
atomic_set(&vgpu->vdev.released, 0);
return ret;
@@ -569,6 +573,8 @@ static void __intel_vgpu_release(struct intel_vgpu *vgpu)
if (atomic_cmpxchg(&vgpu->vdev.released, 0, 1))
return;
+ intel_gvt_ops->vgpu_deactivate(vgpu);
+
ret = vfio_unregister_notifier(mdev_dev(vgpu->vdev.mdev), VFIO_IOMMU_NOTIFY,
&vgpu->vdev.iommu_notifier);
WARN(ret, "vfio_unregister_notifier for iommu failed: %d\n", ret);
@@ -1146,8 +1152,40 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
return 0;
}
+static ssize_t
+vgpu_id_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct mdev_device *mdev = mdev_from_dev(dev);
+
+ if (mdev) {
+ struct intel_vgpu *vgpu = (struct intel_vgpu *)
+ mdev_get_drvdata(mdev);
+ return sprintf(buf, "%d\n", vgpu->id);
+ }
+ return sprintf(buf, "\n");
+}
+
+static DEVICE_ATTR_RO(vgpu_id);
+
+static struct attribute *intel_vgpu_attrs[] = {
+ &dev_attr_vgpu_id.attr,
+ NULL
+};
+
+static const struct attribute_group intel_vgpu_group = {
+ .name = "intel_vgpu",
+ .attrs = intel_vgpu_attrs,
+};
+
+static const struct attribute_group *intel_vgpu_groups[] = {
+ &intel_vgpu_group,
+ NULL,
+};
+
static const struct mdev_parent_ops intel_vgpu_ops = {
.supported_type_groups = intel_vgpu_type_groups,
+ .mdev_attr_groups = intel_vgpu_groups,
.create = intel_vgpu_create,
.remove = intel_vgpu_remove,
@@ -1340,13 +1378,6 @@ static int kvmgt_guest_init(struct mdev_device *mdev)
static bool kvmgt_guest_exit(struct kvmgt_guest_info *info)
{
- struct intel_vgpu *vgpu = info->vgpu;
-
- if (!info) {
- gvt_vgpu_err("kvmgt_guest_info invalid\n");
- return false;
- }
-
kvm_page_track_unregister_notifier(info->kvm, &info->track_node);
kvm_put_kvm(info->kvm);
kvmgt_protect_table_destroy(info);