90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/*
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* QEMU Cryptodev backend for QEMU cipher APIs
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*
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* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
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*
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* Authors:
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* Gonglei <arei.gonglei@huawei.com>
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* Jay Zhou <jianjay.zhou@huawei.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "qemu/osdep.h"
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#include "sysemu/cryptodev-vhost.h"
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#ifdef CONFIG_VHOST_CRYPTO
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uint64_t
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cryptodev_vhost_get_max_queues(
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CryptoDevBackendVhost *crypto)
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{
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return crypto->dev.max_queues;
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}
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void cryptodev_vhost_cleanup(CryptoDevBackendVhost *crypto)
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{
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vhost_dev_cleanup(&crypto->dev);
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g_free(crypto);
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}
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struct CryptoDevBackendVhost *
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cryptodev_vhost_init(
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CryptoDevBackendVhostOptions *options)
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{
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int r;
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CryptoDevBackendVhost *crypto;
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crypto = g_new(CryptoDevBackendVhost, 1);
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crypto->dev.max_queues = 1;
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crypto->dev.nvqs = 1;
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crypto->dev.vqs = crypto->vqs;
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crypto->cc = options->cc;
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crypto->dev.protocol_features = 0;
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crypto->backend = -1;
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/* vhost-user needs vq_index to initiate a specific queue pair */
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crypto->dev.vq_index = crypto->cc->queue_index * crypto->dev.nvqs;
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r = vhost_dev_init(&crypto->dev, options->opaque, options->backend_type, 0);
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if (r < 0) {
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goto fail;
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}
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return crypto;
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fail:
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g_free(crypto);
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return NULL;
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}
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#else
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uint64_t
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cryptodev_vhost_get_max_queues(CryptoDevBackendVhost *crypto)
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{
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return 0;
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}
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void cryptodev_vhost_cleanup(CryptoDevBackendVhost *crypto)
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{
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}
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struct CryptoDevBackendVhost *
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cryptodev_vhost_init(CryptoDevBackendVhostOptions *options)
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{
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return NULL;
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}
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#endif
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