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#ifndef SYSEMU_IOMMUFD_H
#define SYSEMU_IOMMUFD_H
#include "qom/object.h"
#include "qemu/thread.h"
#include "exec/hwaddr.h"
#include "exec/cpu-common.h"
#define TYPE_IOMMUFD_BACKEND "iommufd"
OBJECT_DECLARE_TYPE(IOMMUFDBackend, IOMMUFDBackendClass, IOMMUFD_BACKEND)
struct IOMMUFDBackendClass {
ObjectClass parent_class;
};
struct IOMMUFDBackend {
Object parent;
/*< protected >*/
int fd; /* /dev/iommu file descriptor */
bool owned; /* is the /dev/iommu opened internally */
QemuMutex lock;
uint32_t users;
/*< public >*/
};
int iommufd_backend_connect(IOMMUFDBackend *be, Error **errp);
void iommufd_backend_disconnect(IOMMUFDBackend *be);
int iommufd_backend_alloc_ioas(IOMMUFDBackend *be, uint32_t *ioas_id,
Error **errp);
void iommufd_backend_free_id(IOMMUFDBackend *be, uint32_t id);
int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t ioas_id, hwaddr iova,
ram_addr_t size, void *vaddr, bool readonly);
int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id,
hwaddr iova, ram_addr_t size);
#endif
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