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 */ 102