Yaya48
cf256aa081
Upstream: https://gitlab.com/qemu-project/qemu.git Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/*
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* vhost-user-blk host device
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* Copyright(C) 2017 Intel Corporation.
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*
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* Authors:
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* Changpeng Liu <[email protected]>
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*
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* Based on vhost-scsi.h, Copyright IBM, Corp. 2011
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*
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* This work is licensed under the terms of the GNU LGPL, version 2 or later.
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* See the COPYING.LIB file in the top-level directory.
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*
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*/
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#ifndef VHOST_USER_BLK_H
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#define VHOST_USER_BLK_H
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#include "standard-headers/linux/virtio_blk.h"
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#include "hw/block/block.h"
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#include "chardev/char-fe.h"
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#include "hw/virtio/vhost.h"
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#include "hw/virtio/vhost-user.h"
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#include "qom/object.h"
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#define TYPE_VHOST_USER_BLK "vhost-user-blk"
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OBJECT_DECLARE_SIMPLE_TYPE(VHostUserBlk, VHOST_USER_BLK)
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#define VHOST_USER_BLK_AUTO_NUM_QUEUES UINT16_MAX
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struct VHostUserBlk {
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VirtIODevice parent_obj;
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CharFrontend chardev;
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int32_t bootindex;
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struct virtio_blk_config blkcfg;
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uint16_t num_queues;
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uint32_t queue_size;
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bool seg_max_adjust;
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struct vhost_dev dev;
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struct vhost_inflight *inflight;
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VhostUserState vhost_user;
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struct vhost_virtqueue *vhost_vqs;
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VirtQueue **virtqs;
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/*
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* There are at least two steps of initialization of the
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* vhost-user device. The first is a "connect" step and
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* second is a "start" step. Make a separation between
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* those initialization phases by using two fields.
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*/
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/* vhost_user_blk_connect/vhost_user_blk_disconnect */
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bool connected;
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/* vhost_user_blk_start/vhost_user_blk_stop */
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bool started_vu;
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bool skip_get_vring_base_on_force_shutdown;
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bool inflight_migration;
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};
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#endif
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