hw/vfio/container-base.c

   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 void vfio_container_init(VFIOContainerBase *bcontainer, const VFIOIOMMUOps *ops)
  35 {
  36     bcontainer->ops = ops;
  37     QLIST_INIT(&bcontainer->giommu_list);
  38 }
  39
  40 void vfio_container_destroy(VFIOContainerBase *bcontainer)
  41 {
  42     VFIOGuestIOMMU *giommu, *tmp;
  43
  44     QLIST_FOREACH_SAFE(giommu, &bcontainer->giommu_list, giommu_next, tmp) {
  45         memory_region_unregister_iommu_notifier(
  46                 MEMORY_REGION(giommu->iommu_mr), &giommu->n);
  47         QLIST_REMOVE(giommu, giommu_next);
  48         g_free(giommu);
  49     }
  50 }