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Subject: [PATCH v2 07/15] virtio-crypto: introduce virtio-crypto.h
This patch introduces the header of virtio crypto emulation. Signed-off-by: Gonglei <arei.gonglei@huawei.com> --- include/hw/virtio/virtio-crypto.h | 84 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 include/hw/virtio/virtio-crypto.h diff --git a/include/hw/virtio/virtio-crypto.h b/include/hw/virtio/virtio-crypto.h new file mode 100644 index 0000000..243ed71 --- /dev/null +++ b/include/hw/virtio/virtio-crypto.h @@ -0,0 +1,84 @@ +/* + * 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 "crypto/crypto.h" + +#define VIRTIO_ID_CRYPTO 20 + +/* #define DEBUG_VIRTIO_CRYPTO */ + +#ifdef DEBUG_VIRTIO_CRYPTO +#define DPRINTF(fmt, ...) \ +do { printf("virtio_crypto: " fmt , ## __VA_ARGS__); } while (0) +#else +#define DPRINTF(fmt, ...) do { } while (0) +#endif + +#define TYPE_VIRTIO_CRYPTO "virtio-crypto-device" +#define VIRTIO_CRYPTO(obj) \ + OBJECT_CHECK(VirtIOCrypto, (obj), TYPE_VIRTIO_CRYPTO) +#define VIRTIO_CRYPTO_GET_PARENT_CLASS(obj) \ + OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_CRYPTO) + + +/* Limit the number of packets that can be sent via a single flush + * of the TX queue. This gives us a guaranteed exit condition and + * ensures fairness in the io path. 256 conveniently matches the + * length of the TX queue and shows a good balance of performance + * and latency. */ +#define VIRTIO_CRYPTO_TX_BURST 256 + +typedef struct VirtIOCryptoConf { + int32_t txburst; +} VirtIOCryptoConf; + +struct VirtIOCrypto; + +typedef struct VirtIOCryptoQueue { + VirtQueue *dataq; + QEMUBH *tx_bh; + int tx_waiting; + struct { + VirtQueueElement *elem; + uint32_t flags; + CryptoSymOpInfo *op_info; + void *idata_hva; + } async_tx; + struct VirtIOCrypto *vcrypto; +} VirtIOCryptoQueue; + +typedef struct VirtIOCrypto { + VirtIODevice parent_obj; + + VirtIOCryptoQueue *vqs; + VirtQueue *ctrl_vq; + CryptoLegacyHWState *crypto; + CryptoLegacyHWConf legacy_conf; + + VirtIOCryptoConf conf; + int32_t tx_burst; + uint32_t max_queues; + uint32_t status; + + int multiqueue; + uint32_t curr_queues; + size_t config_size; +} VirtIOCrypto; + +#endif /* _QEMU_VIRTIO_CRYPTO_H */ -- 1.7.12.4
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