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path: root/drivers/gpu/drm/i915/gvt/mpt.h
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Diffstat (limited to 'drivers/gpu/drm/i915/gvt/mpt.h')
-rw-r--r--drivers/gpu/drm/i915/gvt/mpt.h79
1 files changed, 63 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h
index f0e5487e6688..ca8005a6d5fa 100644
--- a/drivers/gpu/drm/i915/gvt/mpt.h
+++ b/drivers/gpu/drm/i915/gvt/mpt.h
@@ -154,51 +154,53 @@ static inline unsigned long intel_gvt_hypervisor_virt_to_mfn(void *p)
}
/**
- * intel_gvt_hypervisor_set_wp_page - set a guest page to write-protected
+ * intel_gvt_hypervisor_enable - set a guest page to write-protected
* @vgpu: a vGPU
- * @p: intel_vgpu_guest_page
+ * @t: page track data structure
*
* Returns:
* Zero on success, negative error code if failed.
*/
-static inline int intel_gvt_hypervisor_set_wp_page(struct intel_vgpu *vgpu,
- struct intel_vgpu_guest_page *p)
+static inline int intel_gvt_hypervisor_enable_page_track(
+ struct intel_vgpu *vgpu,
+ struct intel_vgpu_page_track *t)
{
int ret;
- if (p->writeprotection)
+ if (t->tracked)
return 0;
- ret = intel_gvt_host.mpt->set_wp_page(vgpu->handle, p->gfn);
+ ret = intel_gvt_host.mpt->set_wp_page(vgpu->handle, t->gfn);
if (ret)
return ret;
- p->writeprotection = true;
- atomic_inc(&vgpu->gtt.n_write_protected_guest_page);
+ t->tracked = true;
+ atomic_inc(&vgpu->gtt.n_tracked_guest_page);
return 0;
}
/**
- * intel_gvt_hypervisor_unset_wp_page - remove the write-protection of a
+ * intel_gvt_hypervisor_disable_page_track - remove the write-protection of a
* guest page
* @vgpu: a vGPU
- * @p: intel_vgpu_guest_page
+ * @t: page track data structure
*
* Returns:
* Zero on success, negative error code if failed.
*/
-static inline int intel_gvt_hypervisor_unset_wp_page(struct intel_vgpu *vgpu,
- struct intel_vgpu_guest_page *p)
+static inline int intel_gvt_hypervisor_disable_page_track(
+ struct intel_vgpu *vgpu,
+ struct intel_vgpu_page_track *t)
{
int ret;
- if (!p->writeprotection)
+ if (!t->tracked)
return 0;
- ret = intel_gvt_host.mpt->unset_wp_page(vgpu->handle, p->gfn);
+ ret = intel_gvt_host.mpt->unset_wp_page(vgpu->handle, t->gfn);
if (ret)
return ret;
- p->writeprotection = false;
- atomic_dec(&vgpu->gtt.n_write_protected_guest_page);
+ t->tracked = false;
+ atomic_dec(&vgpu->gtt.n_tracked_guest_page);
return 0;
}
@@ -292,4 +294,49 @@ static inline int intel_gvt_hypervisor_set_trap_area(
return intel_gvt_host.mpt->set_trap_area(vgpu->handle, start, end, map);
}
+/**
+ * intel_gvt_hypervisor_set_opregion - Set opregion for guest
+ * @vgpu: a vGPU
+ *
+ * Returns:
+ * Zero on success, negative error code if failed.
+ */
+static inline int intel_gvt_hypervisor_set_opregion(struct intel_vgpu *vgpu)
+{
+ if (!intel_gvt_host.mpt->set_opregion)
+ return 0;
+
+ return intel_gvt_host.mpt->set_opregion(vgpu);
+}
+
+/**
+ * intel_gvt_hypervisor_get_vfio_device - increase vfio device ref count
+ * @vgpu: a vGPU
+ *
+ * Returns:
+ * Zero on success, negative error code if failed.
+ */
+static inline int intel_gvt_hypervisor_get_vfio_device(struct intel_vgpu *vgpu)
+{
+ if (!intel_gvt_host.mpt->get_vfio_device)
+ return 0;
+
+ return intel_gvt_host.mpt->get_vfio_device(vgpu);
+}
+
+/**
+ * intel_gvt_hypervisor_put_vfio_device - decrease vfio device ref count
+ * @vgpu: a vGPU
+ *
+ * Returns:
+ * Zero on success, negative error code if failed.
+ */
+static inline void intel_gvt_hypervisor_put_vfio_device(struct intel_vgpu *vgpu)
+{
+ if (!intel_gvt_host.mpt->put_vfio_device)
+ return;
+
+ intel_gvt_host.mpt->put_vfio_device(vgpu);
+}
+
#endif /* _GVT_MPT_H_ */