1 /* 2 * VFIO BASE CONTAINER 3 * 4 * Copyright (C) 2023 Intel Corporation. 5 * Copyright Red Hat, Inc. 2023 6 * 7 * Authors: Yi Liu <yi.l.liu@intel.com> 8 * Eric Auger <eric.auger@redhat.com> 9 * 10 * SPDX-License-Identifier: GPL-2.0-or-later 11 */ 12 13 #include "qemu/osdep.h" 14 #include "qapi/error.h" 15 #include "qemu/error-report.h" 16 #include "hw/vfio/vfio-container-base.h" 17 18 int vfio_container_dma_map(VFIOContainerBase *bcontainer, 19 hwaddr iova, ram_addr_t size, 20 void *vaddr, bool readonly) 21 { 22 g_assert(bcontainer->ops->dma_map); 23 return bcontainer->ops->dma_map(bcontainer, iova, size, vaddr, readonly); 24 } 25 26 int vfio_container_dma_unmap(VFIOContainerBase *bcontainer, 27 hwaddr iova, ram_addr_t size, 28 IOMMUTLBEntry *iotlb) 29 { 30 g_assert(bcontainer->ops->dma_unmap); 31 return bcontainer->ops->dma_unmap(bcontainer, iova, size, iotlb); 32 } 33 34 bool vfio_container_add_section_window(VFIOContainerBase *bcontainer, 35 MemoryRegionSection *section, 36 Error **errp) 37 { 38 if (!bcontainer->ops->add_window) { 39 return true; 40 } 41 42 return bcontainer->ops->add_window(bcontainer, section, errp); 43 } 44 45 void vfio_container_del_section_window(VFIOContainerBase *bcontainer, 46 MemoryRegionSection *section) 47 { 48 if (!bcontainer->ops->del_window) { 49 return; 50 } 51 52 return bcontainer->ops->del_window(bcontainer, section); 53 } 54 55 int vfio_container_set_dirty_page_tracking(VFIOContainerBase *bcontainer, 56 bool start, Error **errp) 57 { 58 if (!bcontainer->dirty_pages_supported) { 59 return 0; 60 } 61 62 g_assert(bcontainer->ops->set_dirty_page_tracking); 63 return bcontainer->ops->set_dirty_page_tracking(bcontainer, start, errp); 64 } 65 66 int vfio_container_query_dirty_bitmap(const VFIOContainerBase *bcontainer, 67 VFIOBitmap *vbmap, hwaddr iova, hwaddr size, Error **errp) 68 { 69 g_assert(bcontainer->ops->query_dirty_bitmap); 70 return bcontainer->ops->query_dirty_bitmap(bcontainer, vbmap, iova, size, 71 errp); 72 } 73 74 void vfio_container_init(VFIOContainerBase *bcontainer, 75 const VFIOIOMMUClass *ops) 76 { 77 bcontainer->ops = ops; 78 } 79 80 void vfio_container_destroy(VFIOContainerBase *bcontainer) 81 { 82 VFIOGuestIOMMU *giommu, *tmp; 83 84 QLIST_REMOVE(bcontainer, next); 85 86 QLIST_FOREACH_SAFE(giommu, &bcontainer->giommu_list, giommu_next, tmp) { 87 memory_region_unregister_iommu_notifier( 88 MEMORY_REGION(giommu->iommu_mr), &giommu->n); 89 QLIST_REMOVE(giommu, giommu_next); 90 g_free(giommu); 91 } 92 93 g_list_free_full(bcontainer->iova_ranges, g_free); 94 } 95 96 static void vfio_container_instance_init(Object *obj) 97 { 98 VFIOContainerBase *bcontainer = VFIO_IOMMU(obj); 99 100 bcontainer->error = NULL; 101 bcontainer->dirty_pages_supported = false; 102 bcontainer->dma_max_mappings = 0; 103 bcontainer->iova_ranges = NULL; 104 QLIST_INIT(&bcontainer->giommu_list); 105 QLIST_INIT(&bcontainer->vrdl_list); 106 } 107 108 static const TypeInfo types[] = { 109 { 110 .name = TYPE_VFIO_IOMMU, 111 .parent = TYPE_OBJECT, 112 .instance_init = vfio_container_instance_init, 113 .instance_size = sizeof(VFIOContainerBase), 114 .class_size = sizeof(VFIOIOMMUClass), 115 .abstract = true, 116 }, 117 }; 118 119 DEFINE_TYPES(types) 120