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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"
#include "qom/object.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"
OBJECT_DECLARE_SIMPLE_TYPE(VirtIOCrypto, VIRTIO_CRYPTO)
#define VIRTIO_CRYPTO_GET_PARENT_CLASS(obj) \
OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_CRYPTO)
typedef struct VirtIOCryptoConf {
CryptoDevBackend *cryptodev;
/* Supported service mask */
uint32_t crypto_services;
/* Detailed algorithms mask */
uint32_t cipher_algo_l;
uint32_t cipher_algo_h;
uint32_t hash_algo;
uint32_t mac_algo_l;
uint32_t mac_algo_h;
uint32_t aead_algo;
/* Maximum length of cipher key */
uint32_t max_cipher_key_len;
/* Maximum length of authenticated key */
uint32_t max_auth_key_len;
/* Maximum size of each crypto request's content */
uint64_t max_size;
} VirtIOCryptoConf;
struct VirtIOCrypto;
typedef struct VirtIOCryptoReq {
VirtQueueElement elem;
/* flags of operation, such as type of algorithm */
uint32_t flags;
struct virtio_crypto_inhdr *in;
struct iovec *in_iov; /* Head address of dest iovec */
unsigned int in_num; /* Number of dest iovec */
size_t in_len;
VirtQueue *vq;
struct VirtIOCrypto *vcrypto;
union {
CryptoDevBackendSymOpInfo *sym_op_info;
} u;
} VirtIOCryptoReq;
typedef struct VirtIOCryptoQueue {
VirtQueue *dataq;
QEMUBH *dataq_bh;
struct VirtIOCrypto *vcrypto;
} VirtIOCryptoQueue;
struct VirtIOCrypto {
VirtIODevice parent_obj;
VirtQueue *ctrl_vq;
VirtIOCryptoQueue *vqs;
VirtIOCryptoConf conf;
CryptoDevBackend *cryptodev;
uint32_t max_queues;
uint32_t status;
int multiqueue;
uint32_t curr_queues;
size_t config_size;
uint8_t vhost_started;
};
#endif /* QEMU_VIRTIO_CRYPTO_H */
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