b961d9cc12
Change-Id: I6a142feeaad3117bd3c75e7c5cb7231a1cfa78ae Signed-off-by: Ben Walker <benjamin.walker@intel.com>
62 lines
2.4 KiB
C
62 lines
2.4 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SPDK_VHOST_IOMMU_H
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#define SPDK_VHOST_IOMMU_H
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#include "spdk/stdinc.h"
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/**
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* Register given memory block in currently used IOMMU. If no IOMMU is used this
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* function do nothing but still should be called.
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*
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* \param addr Start of memory block
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* \param len Length of memory block.
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* \return 0 on success, -1 on error.
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*/
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int spdk_iommu_mem_register(uint64_t addr, uint64_t len);
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/**
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* Unregister previously registered memory block in currently used IOMMU. If no
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* IOMMU is used this function do nothing but still should be called.
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*
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* \note This functiom might fail for invalid memory block.
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*
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* \param addr Start of memory block
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* \param len Length of memory block.
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* \return 0 on success, -1 on error.
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*/
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int spdk_iommu_mem_unregister(uint64_t addr, uint64_t len);
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#endif /* SPDK_VHOST_IOMMU_H */
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