HostIOMMUDevice: Store the VFIO/VDPA agent
Store the agent device (VFIO or VDPA) in the host IOMMU device.
This will allow easy access to some of its resources.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/hw/vfio/container.c b/hw/vfio/container.c
index 26e6f7f..b728b97 100644
--- a/hw/vfio/container.c
+++ b/hw/vfio/container.c
@@ -1145,6 +1145,7 @@
hiod->name = g_strdup(vdev->name);
hiod->caps.aw_bits = vfio_device_get_aw_bits(vdev);
+ hiod->agent = opaque;
return true;
}
diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c
index 409ed3d..dbdae1a 100644
--- a/hw/vfio/iommufd.c
+++ b/hw/vfio/iommufd.c
@@ -631,6 +631,8 @@
struct iommu_hw_info_vtd vtd;
} data;
+ hiod->agent = opaque;
+
if (!iommufd_backend_get_device_info(vdev->iommufd, vdev->devid,
&type, &data, sizeof(data), errp)) {
return false;
diff --git a/include/sysemu/host_iommu_device.h b/include/sysemu/host_iommu_device.h
index a578739..3e5f058 100644
--- a/include/sysemu/host_iommu_device.h
+++ b/include/sysemu/host_iommu_device.h
@@ -34,6 +34,7 @@
Object parent_obj;
char *name;
+ void *agent; /* pointer to agent device, ie. VFIO or VDPA device */
HostIOMMUDeviceCaps caps;
};
