From: Zhenzhong Duan <zhenzhong.d...@intel.com>
It calls iommufd_backend_get_device_info() to get host IOMMU
related information and translate it into HostIOMMUDeviceCaps
for query with .get_cap().
For aw_bits, use the same way as legacy backend by calling
vfio_device_get_aw_bits() which is common for different vendor
IOMMU.
Signed-off-by: Zhenzhong Duan <zhenzhong.d...@intel.com>
Reviewed-by: Eric Auger <eric.au...@redhat.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
---
hw/vfio/iommufd.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c
index
e4a507d55c4df972fb4c43d31571022910bae493..1674c61227b69f5de2a32dbb8013f854c199d294
100644
--- a/hw/vfio/iommufd.c
+++ b/hw/vfio/iommufd.c
@@ -619,6 +619,35 @@ static void vfio_iommu_iommufd_class_init(ObjectClass
*klass, void *data)
vioc->pci_hot_reset = iommufd_cdev_pci_hot_reset;
};
+static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque,
+ Error **errp)
+{
+ VFIODevice *vdev = opaque;
+ HostIOMMUDeviceCaps *caps = &hiod->caps;
+ enum iommu_hw_info_type type;
+ union {
+ struct iommu_hw_info_vtd vtd;
+ } data;
+
+ if (!iommufd_backend_get_device_info(vdev->iommufd, vdev->devid,
+ &type, &data, sizeof(data), errp)) {
+ return false;
+ }
+
+ hiod->name = g_strdup(vdev->name);
+ caps->type = type;
+ caps->aw_bits = vfio_device_get_aw_bits(vdev);
+
+ return true;
+}
+
+static void hiod_iommufd_vfio_class_init(ObjectClass *oc, void *data)
+{
+ HostIOMMUDeviceClass *hiodc = HOST_IOMMU_DEVICE_CLASS(oc);
+
+ hiodc->realize = hiod_iommufd_vfio_realize;
+};
+
static const TypeInfo types[] = {
{
.name = TYPE_VFIO_IOMMU_IOMMUFD,
@@ -627,6 +656,7 @@ static const TypeInfo types[] = {
}, {
.name = TYPE_HOST_IOMMU_DEVICE_IOMMUFD_VFIO,
.parent = TYPE_HOST_IOMMU_DEVICE_IOMMUFD,
+ .class_init = hiod_iommufd_vfio_class_init,
}
};
--
2.45.2
