diff --git a/msm/sde/sde_kms.c b/msm/sde/sde_kms.c index 7b5bf289f1..302a7f4ee8 100644 --- a/msm/sde/sde_kms.c +++ b/msm/sde/sde_kms.c @@ -4585,6 +4585,7 @@ static int _sde_kms_register_events(struct msm_kms *kms, struct drm_crtc *crtc = NULL; struct drm_connector *conn = NULL; struct sde_kms *sde_kms = NULL; + struct sde_vm_ops *vm_ops; if (!kms || !obj) { SDE_ERROR("invalid argument kms %pK obj %pK\n", kms, obj); @@ -4592,6 +4593,14 @@ static int _sde_kms_register_events(struct msm_kms *kms, } sde_kms = to_sde_kms(kms); + vm_ops = sde_vm_get_ops(sde_kms); + sde_vm_lock(sde_kms); + if (vm_ops && vm_ops->vm_owns_hw && !vm_ops->vm_owns_hw(sde_kms)) { + sde_vm_unlock(sde_kms); + DRM_INFO("HW is owned by other VM\n"); + return -EACCES; + } + switch (obj->type) { case DRM_MODE_OBJECT_CRTC: crtc = obj_to_crtc(obj); @@ -4604,6 +4613,7 @@ static int _sde_kms_register_events(struct msm_kms *kms, break; } + sde_vm_unlock(sde_kms); return ret; }