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36e84d0c17
Currently iommufd doesn't support dirty page sync yet, but it will not block us doing live migration if VFIO migration is force enabled. So in this case we allow set_dirty_page_tracking to be NULL. Note we don't need same change for query_dirty_bitmap because when dirty page sync isn't supported, query_dirty_bitmap will never be called. Suggested-by: Cédric Le Goater <clg@redhat.com> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Cédric Le Goater <clg@redhat.com>
102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/*
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* VFIO BASE CONTAINER
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*
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* Copyright (C) 2023 Intel Corporation.
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* Copyright Red Hat, Inc. 2023
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*
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* Authors: Yi Liu <yi.l.liu@intel.com>
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* Eric Auger <eric.auger@redhat.com>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "qemu/error-report.h"
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#include "hw/vfio/vfio-container-base.h"
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int vfio_container_dma_map(VFIOContainerBase *bcontainer,
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hwaddr iova, ram_addr_t size,
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void *vaddr, bool readonly)
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{
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g_assert(bcontainer->ops->dma_map);
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return bcontainer->ops->dma_map(bcontainer, iova, size, vaddr, readonly);
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}
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int vfio_container_dma_unmap(VFIOContainerBase *bcontainer,
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hwaddr iova, ram_addr_t size,
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IOMMUTLBEntry *iotlb)
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{
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g_assert(bcontainer->ops->dma_unmap);
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return bcontainer->ops->dma_unmap(bcontainer, iova, size, iotlb);
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}
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int vfio_container_add_section_window(VFIOContainerBase *bcontainer,
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MemoryRegionSection *section,
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Error **errp)
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{
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if (!bcontainer->ops->add_window) {
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return 0;
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}
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return bcontainer->ops->add_window(bcontainer, section, errp);
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}
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void vfio_container_del_section_window(VFIOContainerBase *bcontainer,
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MemoryRegionSection *section)
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{
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if (!bcontainer->ops->del_window) {
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return;
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}
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return bcontainer->ops->del_window(bcontainer, section);
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}
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int vfio_container_set_dirty_page_tracking(VFIOContainerBase *bcontainer,
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bool start)
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{
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if (!bcontainer->dirty_pages_supported) {
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return 0;
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}
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g_assert(bcontainer->ops->set_dirty_page_tracking);
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return bcontainer->ops->set_dirty_page_tracking(bcontainer, start);
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}
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int vfio_container_query_dirty_bitmap(VFIOContainerBase *bcontainer,
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VFIOBitmap *vbmap,
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hwaddr iova, hwaddr size)
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{
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g_assert(bcontainer->ops->query_dirty_bitmap);
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return bcontainer->ops->query_dirty_bitmap(bcontainer, vbmap, iova, size);
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}
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void vfio_container_init(VFIOContainerBase *bcontainer, VFIOAddressSpace *space,
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const VFIOIOMMUOps *ops)
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{
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bcontainer->ops = ops;
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bcontainer->space = space;
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bcontainer->error = NULL;
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bcontainer->dirty_pages_supported = false;
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bcontainer->dma_max_mappings = 0;
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bcontainer->iova_ranges = NULL;
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QLIST_INIT(&bcontainer->giommu_list);
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QLIST_INIT(&bcontainer->vrdl_list);
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}
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void vfio_container_destroy(VFIOContainerBase *bcontainer)
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{
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VFIOGuestIOMMU *giommu, *tmp;
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QLIST_REMOVE(bcontainer, next);
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QLIST_FOREACH_SAFE(giommu, &bcontainer->giommu_list, giommu_next, tmp) {
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memory_region_unregister_iommu_notifier(
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MEMORY_REGION(giommu->iommu_mr), &giommu->n);
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QLIST_REMOVE(giommu, giommu_next);
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g_free(giommu);
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}
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g_list_free_full(bcontainer->iova_ranges, g_free);
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}
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