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virtio-crypto.h (2443B)

      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 #include "qom/object.h"
     22 
     23 
     24 #define DEBUG_VIRTIO_CRYPTO 0
     25 
     26 #define DPRINTF(fmt, ...) \
     27 do { \
     28     if (DEBUG_VIRTIO_CRYPTO) { \
     29         fprintf(stderr, "virtio_crypto: " fmt, ##__VA_ARGS__); \
     30     } \
     31 } while (0)
     32 
     33 
     34 #define TYPE_VIRTIO_CRYPTO "virtio-crypto-device"
     35 OBJECT_DECLARE_SIMPLE_TYPE(VirtIOCrypto, VIRTIO_CRYPTO)
     36 #define VIRTIO_CRYPTO_GET_PARENT_CLASS(obj) \
     37         OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_CRYPTO)
     38 
     39 
     40 typedef 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     uint32_t akcipher_algo;
     54 
     55     /* Maximum length of cipher key */
     56     uint32_t max_cipher_key_len;
     57     /* Maximum length of authenticated key */
     58     uint32_t max_auth_key_len;
     59     /* Maximum size of each crypto request's content */
     60     uint64_t max_size;
     61 } VirtIOCryptoConf;
     62 
     63 struct VirtIOCrypto;
     64 
     65 typedef struct VirtIOCryptoReq {
     66     VirtQueueElement elem;
     67     /* flags of operation, such as type of algorithm */
     68     uint32_t flags;
     69     struct virtio_crypto_inhdr *in;
     70     struct iovec *in_iov; /* Head address of dest iovec */
     71     unsigned int in_num; /* Number of dest iovec */
     72     size_t in_len;
     73     VirtQueue *vq;
     74     struct VirtIOCrypto *vcrypto;
     75     CryptoDevBackendOpInfo op_info;
     76 } VirtIOCryptoReq;
     77 
     78 typedef struct VirtIOCryptoQueue {
     79     VirtQueue *dataq;
     80     QEMUBH *dataq_bh;
     81     struct VirtIOCrypto *vcrypto;
     82 } VirtIOCryptoQueue;
     83 
     84 struct VirtIOCrypto {
     85     VirtIODevice parent_obj;
     86 
     87     VirtQueue *ctrl_vq;
     88     VirtIOCryptoQueue *vqs;
     89     VirtIOCryptoConf conf;
     90     CryptoDevBackend *cryptodev;
     91 
     92     uint32_t max_queues;
     93     uint32_t status;
     94 
     95     int multiqueue;
     96     uint32_t curr_queues;
     97     size_t config_size;
     98     uint8_t vhost_started;
     99 };
    100 
    101 #endif /* QEMU_VIRTIO_CRYPTO_H */