A device that belongs to vfio_group has the kvm instance associated
with it. Retrieve it.
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@xxxxxxxxxx>
---
drivers/vfio/vfio.c | 12 ++++++++++++
include/linux/vfio.h | 1 +
2 files changed, 13 insertions(+)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 2151bc7f87ab..d1968e4bf9f4 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -876,6 +876,18 @@ struct vfio_device *vfio_device_get_from_dev(struct device *dev)
}
EXPORT_SYMBOL_GPL(vfio_device_get_from_dev);
+struct kvm *vfio_kvm_get_from_dev(struct device *dev)
+{
+ struct vfio_group *group;
+
+ group = vfio_group_get_from_dev(dev);
+ if (!group)
+ return NULL;
+
+ return group->kvm;
+}
+EXPORT_SYMBOL_GPL(vfio_kvm_get_from_dev);
+
static struct vfio_device *vfio_device_get_from_name(struct vfio_group *group,
char *buf)
{
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 38d3c6a8dc7e..8716298fee27 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -56,6 +56,7 @@ extern void *vfio_del_group_dev(struct device *dev);
extern struct vfio_device *vfio_device_get_from_dev(struct device *dev);
extern void vfio_device_put(struct vfio_device *device);
extern void *vfio_device_data(struct vfio_device *device);
+extern struct kvm *vfio_kvm_get_from_dev(struct device *dev);
/**
* struct vfio_iommu_driver_ops - VFIO IOMMU driver callbacks
--
2.17.1
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