LXR qemu/include/hw/virtio/virtio-crypto.h

   1/*
   2 * Virtio crypto Support
   3 *
   4 * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
   5 *
   6 * Authors:
   7 *    Gonglei <arei.gonglei@huawei.com>
   8 *
   9 * This work is licensed under the terms of the GNU GPL, version 2 or
  10 * (at your option) any later version.  See the COPYING file in the
  11 * top-level directory.
  12 */
  13
  14#ifndef QEMU_VIRTIO_CRYPTO_H
  15#define QEMU_VIRTIO_CRYPTO_H
  16
  17#include "standard-headers/linux/virtio_crypto.h"
  18#include "hw/virtio/virtio.h"
  19#include "sysemu/iothread.h"
  20#include "sysemu/cryptodev.h"
  21
  22
  23#define DEBUG_VIRTIO_CRYPTO 0
  24
  25#define DPRINTF(fmt, ...) \
  26do { \
  27    if (DEBUG_VIRTIO_CRYPTO) { \
  28        fprintf(stderr, "virtio_crypto: " fmt, ##__VA_ARGS__); \
  29    } \
  30} while (0)
  31
  32
  33#define TYPE_VIRTIO_CRYPTO "virtio-crypto-device"
  34#define VIRTIO_CRYPTO(obj) \
  35        OBJECT_CHECK(VirtIOCrypto, (obj), TYPE_VIRTIO_CRYPTO)
  36#define VIRTIO_CRYPTO_GET_PARENT_CLASS(obj) \
  37        OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_CRYPTO)
  38
  39
  40typedef struct VirtIOCryptoConf {
  41    CryptoDevBackend *cryptodev;
  42
  43    /* Supported service mask */
  44    uint32_t crypto_services;
  45
  46    /* Detailed algorithms mask */
  47    uint32_t cipher_algo_l;
  48    uint32_t cipher_algo_h;
  49    uint32_t hash_algo;
  50    uint32_t mac_algo_l;
  51    uint32_t mac_algo_h;
  52    uint32_t aead_algo;
  53
  54    /* Maximum length of cipher key */
  55    uint32_t max_cipher_key_len;
  56    /* Maximum length of authenticated key */
  57    uint32_t max_auth_key_len;
  58    /* Maximum size of each crypto request's content */
  59    uint64_t max_size;
  60} VirtIOCryptoConf;
  61
  62struct VirtIOCrypto;
  63
  64typedef struct VirtIOCryptoReq {
  65    VirtQueueElement elem;
  66    /* flags of operation, such as type of algorithm */
  67    uint32_t flags;
  68    struct virtio_crypto_inhdr *in;
  69    struct iovec *in_iov; /* Head address of dest iovec */
  70    unsigned int in_num; /* Number of dest iovec */
  71    size_t in_len;
  72    VirtQueue *vq;
  73    struct VirtIOCrypto *vcrypto;
  74    union {
  75        CryptoDevBackendSymOpInfo *sym_op_info;
  76    } u;
  77} VirtIOCryptoReq;
  78
  79typedef struct VirtIOCryptoQueue {
  80    VirtQueue *dataq;
  81    QEMUBH *dataq_bh;
  82    struct VirtIOCrypto *vcrypto;
  83} VirtIOCryptoQueue;
  84
  85typedef struct VirtIOCrypto {
  86    VirtIODevice parent_obj;
  87
  88    VirtQueue *ctrl_vq;
  89    VirtIOCryptoQueue *vqs;
  90    VirtIOCryptoConf conf;
  91    CryptoDevBackend *cryptodev;
  92
  93    uint32_t max_queues;
  94    uint32_t status;
  95
  96    int multiqueue;
  97    uint32_t curr_queues;
  98    size_t config_size;
  99    uint8_t vhost_started;
 100} VirtIOCrypto;
 101
 102#endif /* QEMU_VIRTIO_CRYPTO_H */
 103