a1a62ced51
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
154 lines
4.1 KiB
C
154 lines
4.1 KiB
C
/*
|
|
* QEMU Crypto Device Common Vhost Implement
|
|
*
|
|
* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
|
|
*
|
|
* Authors:
|
|
* Gonglei <arei.gonglei@huawei.com>
|
|
* Jay Zhou <jianjay.zhou@huawei.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
#ifndef CRYPTODEV_VHOST_H
|
|
#define CRYPTODEV_VHOST_H
|
|
|
|
#include "hw/virtio/vhost.h"
|
|
#include "hw/virtio/vhost-backend.h"
|
|
#include "chardev/char.h"
|
|
|
|
#include "sysemu/cryptodev.h"
|
|
|
|
|
|
typedef struct CryptoDevBackendVhostOptions {
|
|
VhostBackendType backend_type;
|
|
void *opaque;
|
|
int total_queues;
|
|
CryptoDevBackendClient *cc;
|
|
} CryptoDevBackendVhostOptions;
|
|
|
|
typedef struct CryptoDevBackendVhost {
|
|
struct vhost_dev dev;
|
|
struct vhost_virtqueue vqs[1];
|
|
int backend;
|
|
CryptoDevBackendClient *cc;
|
|
} CryptoDevBackendVhost;
|
|
|
|
/**
|
|
* cryptodev_vhost_get_max_queues:
|
|
* @crypto: the cryptodev backend common vhost object
|
|
*
|
|
* Get the maximum queue number of @crypto.
|
|
*
|
|
*
|
|
* Returns: the maximum queue number
|
|
*/
|
|
uint64_t
|
|
cryptodev_vhost_get_max_queues(
|
|
CryptoDevBackendVhost *crypto);
|
|
|
|
|
|
/**
|
|
* cryptodev_vhost_init:
|
|
* @options: the common vhost object's option
|
|
*
|
|
* Creates a new cryptodev backend common vhost object
|
|
*
|
|
** The returned object must be released with
|
|
* cryptodev_vhost_cleanup() when no
|
|
* longer required
|
|
*
|
|
* Returns: the cryptodev backend common vhost object
|
|
*/
|
|
struct CryptoDevBackendVhost *
|
|
cryptodev_vhost_init(
|
|
CryptoDevBackendVhostOptions *options);
|
|
|
|
/**
|
|
* cryptodev_vhost_cleanup:
|
|
* @crypto: the cryptodev backend common vhost object
|
|
*
|
|
* Clean the resource associated with @crypto that realizaed
|
|
* by cryptodev_vhost_init()
|
|
*
|
|
*/
|
|
void cryptodev_vhost_cleanup(
|
|
CryptoDevBackendVhost *crypto);
|
|
|
|
/**
|
|
* cryptodev_get_vhost:
|
|
* @cc: the client object for each queue
|
|
* @b: the cryptodev backend common vhost object
|
|
* @queue: the cryptodev backend queue index
|
|
*
|
|
* Gets a new cryptodev backend common vhost object based on
|
|
* @b and @queue
|
|
*
|
|
* Returns: the cryptodev backend common vhost object
|
|
*/
|
|
CryptoDevBackendVhost *
|
|
cryptodev_get_vhost(CryptoDevBackendClient *cc,
|
|
CryptoDevBackend *b,
|
|
uint16_t queue);
|
|
/**
|
|
* cryptodev_vhost_start:
|
|
* @dev: the virtio crypto object
|
|
* @total_queues: the total count of queue
|
|
*
|
|
* Starts the vhost crypto logic
|
|
*
|
|
* Returns: 0 for success, negative for errors
|
|
*/
|
|
int cryptodev_vhost_start(VirtIODevice *dev, int total_queues);
|
|
|
|
/**
|
|
* cryptodev_vhost_stop:
|
|
* @dev: the virtio crypto object
|
|
* @total_queues: the total count of queue
|
|
*
|
|
* Stops the vhost crypto logic
|
|
*
|
|
*/
|
|
void cryptodev_vhost_stop(VirtIODevice *dev, int total_queues);
|
|
|
|
/**
|
|
* cryptodev_vhost_virtqueue_mask:
|
|
* @dev: the virtio crypto object
|
|
* @queue: the cryptodev backend queue index
|
|
* @idx: the virtqueue index
|
|
* @mask: mask or not (true or false)
|
|
*
|
|
* Mask/unmask events for @idx virtqueue on @dev device
|
|
*
|
|
*/
|
|
void cryptodev_vhost_virtqueue_mask(VirtIODevice *dev,
|
|
int queue,
|
|
int idx, bool mask);
|
|
|
|
/**
|
|
* cryptodev_vhost_virtqueue_pending:
|
|
* @dev: the virtio crypto object
|
|
* @queue: the cryptodev backend queue index
|
|
* @idx: the virtqueue index
|
|
*
|
|
* Test and clear event pending status for @idx virtqueue on @dev device.
|
|
* Should be called after unmask to avoid losing events.
|
|
*
|
|
* Returns: true for success, false for errors
|
|
*/
|
|
bool cryptodev_vhost_virtqueue_pending(VirtIODevice *dev,
|
|
int queue, int idx);
|
|
|
|
#endif /* CRYPTODEV_VHOST_H */
|