72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
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/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/* Shared data structure between VBS-U and VBS-K */
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#ifndef _VBS_COMMON_IF_H_
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#define _VBS_COMMON_IF_H_
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#include "types.h"
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#define VBS_MAX_VQ_CNT 10
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#define VBS_NAME_LEN 32
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struct vbs_vq_info {
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uint16_t qsize; /* size of this queue (a power of 2) */
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uint32_t pfn; /* PFN of virt queue (not shifted!) */
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uint16_t msix_idx; /* MSI-X index, or VIRTIO_MSI_NO_VECTOR */
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uint64_t msix_addr;
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uint32_t msix_data;
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};
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struct vbs_vqs_info {
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uint32_t nvq; /* number of virtqueues */
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struct vbs_vq_info vqs[VBS_MAX_VQ_CNT];
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/* array of struct vbs_vq_info */
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};
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struct vbs_dev_info {
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char name[VBS_NAME_LEN];/* VBS name */
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int vmid; /* VMID this device belongs to */
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int nvq; /* virtqueue # */
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uint32_t negotiated_features;
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/* features after VIRTIO_CONFIG_S_DRIVER_OK */
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uint64_t pio_range_start;
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uint64_t pio_range_len; /* PIO bar address initialized by guest OS */
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};
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/* reuse vhost ioctl index */
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#define VBS_K_IOCTL 0xAF
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#define VBS_K_SET_DEV _IOW(VBS_K_IOCTL, 0x00, struct vbs_dev_info)
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#define VBS_K_SET_VQ _IOW(VBS_K_IOCTL, 0x01, struct vbs_vqs_info)
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#endif /* _VBS_COMMON_IF_H_ */
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