37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
|
#ifndef SYSEMU_IOMMUFD_H
|
||
|
|
#define SYSEMU_IOMMUFD_H
|
||
|
|
|
||
|
|
#include "qom/object.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 */
|
||
|
|
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
|