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virtio-crypto: add virtio crypto device emulation

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Introduce the virtio crypto realization, I'll
finish the core code in the following patches. The
thoughts came from virtio net realization.

For more information see:
http://qemu-project.org/Features/VirtioCrypto

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Gonglei 2016-10-28 16:33:24 +08:00 • committed by Michael S. Tsirkin
parent 1653a5f3fc
commit ea4d8ac2da
4 changed files with 226 additions and 1 deletions
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73
include/hw/virtio/virtio-crypto.h Normal file
View file

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/*
* Virtio crypto Support
*
* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
*
* Authors:
* Gonglei <arei.gonglei@huawei.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* (at your option) any later version. See the COPYING file in the
* top-level directory.
*/
#ifndef _QEMU_VIRTIO_CRYPTO_H
#define _QEMU_VIRTIO_CRYPTO_H
#include "standard-headers/linux/virtio_crypto.h"
#include "hw/virtio/virtio.h"
#include "sysemu/iothread.h"
#include "sysemu/cryptodev.h"
#define DEBUG_VIRTIO_CRYPTO 0
#define DPRINTF(fmt, ...) \
do { \
if (DEBUG_VIRTIO_CRYPTO) { \
fprintf(stderr, "virtio_crypto: " fmt, ##__VA_ARGS__); \
} \
} while (0)
#define TYPE_VIRTIO_CRYPTO "virtio-crypto-device"
#define VIRTIO_CRYPTO(obj) \
OBJECT_CHECK(VirtIOCrypto, (obj), TYPE_VIRTIO_CRYPTO)
#define VIRTIO_CRYPTO_GET_PARENT_CLASS(obj) \
OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_CRYPTO)
typedef struct VirtIOCryptoConf {
CryptoDevBackend *cryptodev;
} VirtIOCryptoConf;
struct VirtIOCrypto;
typedef struct VirtIOCryptoReq {
VirtQueueElement elem;
/* flags of operation, such as type of algorithm */
uint32_t flags;
VirtQueue *vq;
struct VirtIOCrypto *vcrypto;
union {
CryptoDevBackendSymOpInfo *sym_op_info;
} u;
} VirtIOCryptoReq;
typedef struct VirtIOCrypto {
VirtIODevice parent_obj;
VirtQueue *ctrl_vq;
VirtIOCryptoConf conf;
CryptoDevBackend *cryptodev;
uint32_t max_queues;
uint32_t status;
int multiqueue;
uint32_t curr_queues;
size_t config_size;
} VirtIOCrypto;
#endif /* _QEMU_VIRTIO_CRYPTO_H */