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, ...) \ 26 do { \ 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 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 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 62 struct VirtIOCrypto; 63 64 typedef 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 79 typedef struct VirtIOCryptoQueue { 80 VirtQueue *dataq; 81 QEMUBH *dataq_bh; 82 struct VirtIOCrypto *vcrypto; 83 } VirtIOCryptoQueue; 84 85 typedef 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