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Add a function that generates a Virtual I/O Translation table (VIOT), describing the topology of paravirtual IOMMUs. The table is created if a virtio-iommu device is present. It contains a virtio-iommu node and PCI Range nodes for endpoints managed by the IOMMU. By default, a single node describes all PCI devices. When passing the "default_bus_bypass_iommu" machine option and "bypass_iommu" PXB option, only buses that do not bypass the IOMMU are described by PCI Range nodes. Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Message-Id: <20211026182024.2642038-2-jean-philippe@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
14 lines
340 B
C
14 lines
340 B
C
/*
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* ACPI Virtual I/O Translation Table implementation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef VIOT_H
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#define VIOT_H
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void build_viot(MachineState *ms, GArray *table_data, BIOSLinker *linker,
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uint16_t virtio_iommu_bdf, const char *oem_id,
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const char *oem_table_id);
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#endif /* VIOT_H */
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