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/*
* VFIO BASE CONTAINER
*
* Copyright (C) 2023 Intel Corporation.
* Copyright Red Hat, Inc. 2023
*
* Authors: Yi Liu <yi.l.liu@intel.com>
* Eric Auger <eric.auger@redhat.com>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "hw/vfio/vfio-container-base.h"
int vfio_container_dma_map(VFIOContainerBase *bcontainer,
hwaddr iova, ram_addr_t size,
void *vaddr, bool readonly)
{
VFIOIOMMUClass *vioc = VFIO_IOMMU_GET_CLASS(bcontainer);
g_assert(vioc->dma_map);
return vioc->dma_map(bcontainer, iova, size, vaddr, readonly);
}
int vfio_container_dma_unmap(VFIOContainerBase *bcontainer,
hwaddr iova, ram_addr_t size,
IOMMUTLBEntry *iotlb)
{
VFIOIOMMUClass *vioc = VFIO_IOMMU_GET_CLASS(bcontainer);
g_assert(vioc->dma_unmap);
return vioc->dma_unmap(bcontainer, iova, size, iotlb);
}
bool vfio_container_add_section_window(VFIOContainerBase *bcontainer,
MemoryRegionSection *section,
Error **errp)
{
VFIOIOMMUClass *vioc = VFIO_IOMMU_GET_CLASS(bcontainer);
if (!vioc->add_window) {
return true;
}
return vioc->add_window(bcontainer, section, errp);
}
void vfio_container_del_section_window(VFIOContainerBase *bcontainer,
MemoryRegionSection *section)
{
VFIOIOMMUClass *vioc = VFIO_IOMMU_GET_CLASS(bcontainer);
if (!vioc->del_window) {
return;
}
return vioc->del_window(bcontainer, section);
}
int vfio_container_set_dirty_page_tracking(VFIOContainerBase *bcontainer,
bool start, Error **errp)
{
VFIOIOMMUClass *vioc = VFIO_IOMMU_GET_CLASS(bcontainer);
int ret;
if (!bcontainer->dirty_pages_supported) {
return 0;
}
g_assert(vioc->set_dirty_page_tracking);
if (bcontainer->dirty_pages_started == start) {
return 0;
}
ret = vioc->set_dirty_page_tracking(bcontainer, start, errp);
if (!ret) {
bcontainer->dirty_pages_started = start;
}
return ret;
}
int vfio_container_query_dirty_bitmap(const VFIOContainerBase *bcontainer,
VFIOBitmap *vbmap, hwaddr iova, hwaddr size, Error **errp)
{
VFIOIOMMUClass *vioc = VFIO_IOMMU_GET_CLASS(bcontainer);
g_assert(vioc->query_dirty_bitmap);
return vioc->query_dirty_bitmap(bcontainer, vbmap, iova, size,
errp);
}
static gpointer copy_iova_range(gconstpointer src, gpointer data)
{
Range *source = (Range *)src;
Range *dest = g_new(Range, 1);
range_set_bounds(dest, range_lob(source), range_upb(source));
return dest;
}
GList *vfio_container_get_iova_ranges(const VFIOContainerBase *bcontainer)
{
assert(bcontainer);
return g_list_copy_deep(bcontainer->iova_ranges, copy_iova_range, NULL);
}
static void vfio_container_instance_finalize(Object *obj)
{
VFIOContainerBase *bcontainer = VFIO_IOMMU(obj);
VFIOGuestIOMMU *giommu, *tmp;
QLIST_SAFE_REMOVE(bcontainer, next);
QLIST_FOREACH_SAFE(giommu, &bcontainer->giommu_list, giommu_next, tmp) {
memory_region_unregister_iommu_notifier(
MEMORY_REGION(giommu->iommu_mr), &giommu->n);
QLIST_REMOVE(giommu, giommu_next);
g_free(giommu);
}
g_list_free_full(bcontainer->iova_ranges, g_free);
}
static void vfio_container_instance_init(Object *obj)
{
VFIOContainerBase *bcontainer = VFIO_IOMMU(obj);
bcontainer->error = NULL;
bcontainer->dirty_pages_supported = false;
bcontainer->dma_max_mappings = 0;
bcontainer->iova_ranges = NULL;
QLIST_INIT(&bcontainer->giommu_list);
QLIST_INIT(&bcontainer->vrdl_list);
}
static const TypeInfo types[] = {
{
.name = TYPE_VFIO_IOMMU,
.parent = TYPE_OBJECT,
.instance_init = vfio_container_instance_init,
.instance_finalize = vfio_container_instance_finalize,
.instance_size = sizeof(VFIOContainerBase),
.class_size = sizeof(VFIOIOMMUClass),
.abstract = true,
},
};
DEFINE_TYPES(types)
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