40b966a211
These library changes provide a new Intel DPDK feature for communicating with virtual machines using QEMU's IVSHMEM mechanism. The feature works by providing a command line for QEMU to map several hugepages into a single IVSHMEM device. For the guest to know what is inside any given IVSHMEM device (and to distinguish between Intel(R) DPDK and non-Intel(R) DPDK IVSHMEM devices), a metadata file is also mapped into the IVSHMEM segment. No work needs to be done by the guest application to map IVSHMEM devices into memory; they are automatically recognized by the Intel(R) DPDK Environment Abstraction Layer (EAL). Changes in this patch: * Changes to EAL to allow mapping of all hugepages in a memseg into a single file * Changes to EAL to allow ivshmem devices to be transparently mapped in the process running on the guest. * New ivshmem library to create and manage metadata exported to guest VM's * New ivshmem compilation targets * Mempool and ring changes to allow export of structures to a VM and allow a VM to attach to those structures. * New autotests to unit tests this functionality. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
49 lines
2.0 KiB
Plaintext
49 lines
2.0 KiB
Plaintext
# BSD LICENSE
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#
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# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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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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#
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# use default config
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#
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#include "defconfig_x86_64-default-linuxapp-gcc"
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#
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# Compile IVSHMEM library
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#
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CONFIG_RTE_LIBRTE_IVSHMEM=y
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CONFIG_RTE_LIBRTE_IVSHMEM_DEBUG=n
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CONFIG_RTE_LIBRTE_IVSHMEM_MAX_PCI_DEVS=4
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CONFIG_RTE_LIBRTE_IVSHMEM_MAX_ENTRIES=128
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CONFIG_RTE_LIBRTE_IVSHMEM_MAX_METADATA_FILES=32
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# Set EAL to single file segments
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CONFIG_RTE_EAL_SINGLE_FILE_SEGMENTS=y |