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 int vfio_container_add_section_window(VFIOContainerBase *bcontainer, 35 MemoryRegionSection *section, 36 Error **errp) 37 { 38 if (!bcontainer->ops->add_window) { 39 return 0; 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) 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); 64 } 65 66 int vfio_container_query_dirty_bitmap(const VFIOContainerBase *bcontainer, 67 VFIOBitmap *vbmap, 68 hwaddr iova, hwaddr size) 69 { 70 g_assert(bcontainer->ops->query_dirty_bitmap); 71 return bcontainer->ops->query_dirty_bitmap(bcontainer, vbmap, iova, size); 72 } 73 74 void vfio_container_init(VFIOContainerBase *bcontainer, VFIOAddressSpace *space, 75 const VFIOIOMMUClass *ops) 76 { 77 bcontainer->ops = ops; 78 bcontainer->space = space; 79 bcontainer->error = NULL; 80 bcontainer->dirty_pages_supported = false; 81 bcontainer->dma_max_mappings = 0; 82 bcontainer->iova_ranges = NULL; 83 QLIST_INIT(&bcontainer->giommu_list); 84 QLIST_INIT(&bcontainer->vrdl_list); 85 } 86 87 void vfio_container_destroy(VFIOContainerBase *bcontainer) 88 { 89 VFIOGuestIOMMU *giommu, *tmp; 90 91 QLIST_REMOVE(bcontainer, next); 92 93 QLIST_FOREACH_SAFE(giommu, &bcontainer->giommu_list, giommu_next, tmp) { 94 memory_region_unregister_iommu_notifier( 95 MEMORY_REGION(giommu->iommu_mr), &giommu->n); 96 QLIST_REMOVE(giommu, giommu_next); 97 g_free(giommu); 98 } 99 100 g_list_free_full(bcontainer->iova_ranges, g_free); 101 } 102 103 static const TypeInfo types[] = { 104 { 105 .name = TYPE_VFIO_IOMMU, 106 .parent = TYPE_INTERFACE, 107 .class_size = sizeof(VFIOIOMMUClass), 108 }, 109 }; 110 111 DEFINE_TYPES(types) 112