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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>
This commit is contained in:
Eric Auger 2024-06-14 11:52:51 +02:00 committed by Cédric Le Goater
parent 77f6efc0ab
commit dc169694ca
3 changed files with 4 additions and 0 deletions
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1
hw/vfio/container.c
View File

@ -1145,6 +1145,7 @@ static bool hiod_legacy_vfio_realize(HostIOMMUDevice *hiod, void *opaque,
hiod->name = g_strdup(vdev->name); hiod->name = g_strdup(vdev->name);
hiod->caps.aw_bits = vfio_device_get_aw_bits(vdev); hiod->caps.aw_bits = vfio_device_get_aw_bits(vdev);
hiod->agent = opaque;
return true; return true;
} }

2
hw/vfio/iommufd.c
View File

@ -631,6 +631,8 @@ static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque,
struct iommu_hw_info_vtd vtd; struct iommu_hw_info_vtd vtd;
} data; } data;
hiod->agent = opaque;
if (!iommufd_backend_get_device_info(vdev->iommufd, vdev->devid, if (!iommufd_backend_get_device_info(vdev->iommufd, vdev->devid,
&type, &data, sizeof(data), errp)) { &type, &data, sizeof(data), errp)) {
return false; return false;

1
include/sysemu/host_iommu_device.h
View File

@ -34,6 +34,7 @@ struct HostIOMMUDevice {
Object parent_obj; Object parent_obj;
char *name; char *name;
void *agent; /* pointer to agent device, ie. VFIO or VDPA device */
HostIOMMUDeviceCaps caps; HostIOMMUDeviceCaps caps;
}; };