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a5e2460d95
VfioUserDmaMapping is already in the pci crate, this moves VfioDmaMapping to match the behavior. This is a necessary change to allow the VfioDmaMapping trait to have access to MmioRegion memory without creating a circular dependency. The VfioDmaMapping trait needs to have access to mmio regions to map external devices over mmio (a follow-up commit). Signed-off-by: Andrew Carp <acarp@crusoeenergy.com>
16 lines
625 B
Rust
16 lines
625 B
Rust
// Copyright © 2021 Intel Corporation
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//
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// SPDX-License-Identifier: Apache-2.0 OR BSD-3-Clause
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/// Trait meant for triggering the DMA mapping update related to an external
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/// device not managed fully through virtio. It is dedicated to virtio-iommu
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/// in order to trigger the map update anytime the mapping is updated from the
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/// guest.
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pub trait ExternalDmaMapping: Send + Sync {
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/// Map a memory range
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fn map(&self, iova: u64, gpa: u64, size: u64) -> std::result::Result<(), std::io::Error>;
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/// Unmap a memory range
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fn unmap(&self, iova: u64, size: u64) -> std::result::Result<(), std::io::Error>;
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}
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