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/*
* Host IOMMU device abstract declaration
*
* Copyright (C) 2024 Intel Corporation.
*
* Authors: Zhenzhong Duan <zhenzhong.duan@intel.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*/
#ifndef HOST_IOMMU_DEVICE_H
#define HOST_IOMMU_DEVICE_H
#include "qom/object.h"
#include "qapi/error.h"
#define TYPE_HOST_IOMMU_DEVICE "host-iommu-device"
OBJECT_DECLARE_TYPE(HostIOMMUDevice, HostIOMMUDeviceClass, HOST_IOMMU_DEVICE)
struct HostIOMMUDevice {
Object parent_obj;
char *name;
};
/**
* struct HostIOMMUDeviceClass - The base class for all host IOMMU devices.
*
* Different types of host devices (e.g., VFIO or VDPA device) or devices
* with different backend (e.g., VFIO legacy container or IOMMUFD backend)
* will have different implementations of the HostIOMMUDeviceClass.
*/
struct HostIOMMUDeviceClass {
ObjectClass parent_class;
/**
* @realize: initialize host IOMMU device instance further.
*
* Mandatory callback.
*
* @hiod: pointer to a host IOMMU device instance.
*
* @opaque: pointer to agent device of this host IOMMU device,
* e.g., VFIO base device or VDPA device.
*
* @errp: pass an Error out when realize fails.
*
* Returns: true on success, false on failure.
*/
bool (*realize)(HostIOMMUDevice *hiod, void *opaque, Error **errp);
};
#endif
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