19005f928SZhenzhong Duan /* 29005f928SZhenzhong Duan * iommufd container backend declaration 39005f928SZhenzhong Duan * 49005f928SZhenzhong Duan * Copyright (C) 2024 Intel Corporation. 59005f928SZhenzhong Duan * Copyright Red Hat, Inc. 2024 69005f928SZhenzhong Duan * 79005f928SZhenzhong Duan * Authors: Yi Liu <yi.l.liu@intel.com> 89005f928SZhenzhong Duan * Eric Auger <eric.auger@redhat.com> 99005f928SZhenzhong Duan * Zhenzhong Duan <zhenzhong.duan@intel.com> 109005f928SZhenzhong Duan * 119005f928SZhenzhong Duan * SPDX-License-Identifier: GPL-2.0-or-later 129005f928SZhenzhong Duan */ 139005f928SZhenzhong Duan 146e6d8ac6SEric Auger #ifndef SYSEMU_IOMMUFD_H 156e6d8ac6SEric Auger #define SYSEMU_IOMMUFD_H 166e6d8ac6SEric Auger 176e6d8ac6SEric Auger #include "qom/object.h" 186e6d8ac6SEric Auger #include "exec/hwaddr.h" 196e6d8ac6SEric Auger #include "exec/cpu-common.h" 209005f928SZhenzhong Duan #include "sysemu/host_iommu_device.h" 216e6d8ac6SEric Auger 226e6d8ac6SEric Auger #define TYPE_IOMMUFD_BACKEND "iommufd" 236e6d8ac6SEric Auger OBJECT_DECLARE_TYPE(IOMMUFDBackend, IOMMUFDBackendClass, IOMMUFD_BACKEND) 246e6d8ac6SEric Auger 256e6d8ac6SEric Auger struct IOMMUFDBackendClass { 266e6d8ac6SEric Auger ObjectClass parent_class; 276e6d8ac6SEric Auger }; 286e6d8ac6SEric Auger 296e6d8ac6SEric Auger struct IOMMUFDBackend { 306e6d8ac6SEric Auger Object parent; 316e6d8ac6SEric Auger 326e6d8ac6SEric Auger /*< protected >*/ 336e6d8ac6SEric Auger int fd; /* /dev/iommu file descriptor */ 346e6d8ac6SEric Auger bool owned; /* is the /dev/iommu opened internally */ 356e6d8ac6SEric Auger uint32_t users; 366e6d8ac6SEric Auger 376e6d8ac6SEric Auger /*< public >*/ 386e6d8ac6SEric Auger }; 396e6d8ac6SEric Auger 409067d50dSZhenzhong Duan bool iommufd_backend_connect(IOMMUFDBackend *be, Error **errp); 416e6d8ac6SEric Auger void iommufd_backend_disconnect(IOMMUFDBackend *be); 426e6d8ac6SEric Auger 439067d50dSZhenzhong Duan bool iommufd_backend_alloc_ioas(IOMMUFDBackend *be, uint32_t *ioas_id, 446e6d8ac6SEric Auger Error **errp); 456e6d8ac6SEric Auger void iommufd_backend_free_id(IOMMUFDBackend *be, uint32_t id); 466e6d8ac6SEric Auger int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t ioas_id, hwaddr iova, 476e6d8ac6SEric Auger ram_addr_t size, void *vaddr, bool readonly); 486e6d8ac6SEric Auger int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id, 496e6d8ac6SEric Auger hwaddr iova, ram_addr_t size); 5042965386SZhenzhong Duan bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, 5142965386SZhenzhong Duan uint32_t *type, void *data, uint32_t len, 522d1bf258SJoao Martins uint64_t *caps, Error **errp); 535b1e96e6SJoao Martins bool iommufd_backend_alloc_hwpt(IOMMUFDBackend *be, uint32_t dev_id, 545b1e96e6SJoao Martins uint32_t pt_id, uint32_t flags, 555b1e96e6SJoao Martins uint32_t data_type, uint32_t data_len, 565b1e96e6SJoao Martins void *data_ptr, uint32_t *out_hwpt, 575b1e96e6SJoao Martins Error **errp); 5852ce8822SJoao Martins bool iommufd_backend_set_dirty_tracking(IOMMUFDBackend *be, uint32_t hwpt_id, 5952ce8822SJoao Martins bool start, Error **errp); 60*7c30710bSJoao Martins bool iommufd_backend_get_dirty_bitmap(IOMMUFDBackend *be, uint32_t hwpt_id, 61*7c30710bSJoao Martins uint64_t iova, ram_addr_t size, 62*7c30710bSJoao Martins uint64_t page_size, uint64_t *data, 63*7c30710bSJoao Martins Error **errp); 649005f928SZhenzhong Duan 659005f928SZhenzhong Duan #define TYPE_HOST_IOMMU_DEVICE_IOMMUFD TYPE_HOST_IOMMU_DEVICE "-iommufd" 666e6d8ac6SEric Auger #endif 67