0700651af5
* Taken from 5.15.74 Signed-off-by: chandu078 <chandudyavanapelli03@gmail.com> Signed-off-by: chrisl7 <wandersonrodriguesf1@gmail.com> Change-Id: I8b22703b0f1c05d515cb14268fd131adb40be8e8
118 lines
2.7 KiB
C
118 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
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/*
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* Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
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*/
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#ifndef _LINUX_VIRTIO_BACKEND_H
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#define _LINUX_VIRTIO_BACKEND_H
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#include <linux/virtio_types.h>
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#define VIRTIO_BE_IOC_MAGIC 0xBC
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#define VBE_ASSIGN_IOEVENTFD 1
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#define VBE_DEASSIGN_IOEVENTFD 2
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#define VBE_ASSIGN_IRQFD 1
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#define VBE_DEASSIGN_IRQFD 2
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#define EVENT_NEW_BUFFER 1
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#define EVENT_RESET_RQST 2
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#define EVENT_INTERRUPT_ACK 4
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#define EVENT_DRIVER_OK 8
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#define EVENT_DRIVER_FAILED 0x10
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#define EVENT_MODULE_EXIT 0x20
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#define EVENT_VM_EXIT 0x40
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#define EVENT_APP_EXIT 0x100
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/*
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* IOCTLs supported by virtio backend driver
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*/
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#define GH_GET_SHARED_MEMORY_SIZE _IOR(VIRTIO_BE_IOC_MAGIC, 1, __u64)
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#define GH_IOEVENTFD _IOW(VIRTIO_BE_IOC_MAGIC, 2, \
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struct virtio_eventfd)
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#define GH_IRQFD _IOW(VIRTIO_BE_IOC_MAGIC, 3, \
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struct virtio_irqfd)
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#define GH_WAIT_FOR_EVENT _IOWR(VIRTIO_BE_IOC_MAGIC, 4, \
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struct virtio_event)
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#define GH_SET_DEVICE_FEATURES _IOW(VIRTIO_BE_IOC_MAGIC, 5, \
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struct virtio_dev_features)
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#define GH_SET_QUEUE_NUM_MAX _IOW(VIRTIO_BE_IOC_MAGIC, 6, \
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struct virtio_queue_max)
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#define GH_SET_DEVICE_CONFIG_DATA _IOW(VIRTIO_BE_IOC_MAGIC, 7, \
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struct virtio_config_data)
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#define GH_GET_DRIVER_CONFIG_DATA _IOWR(VIRTIO_BE_IOC_MAGIC, 8, \
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struct virtio_config_data)
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#define GH_GET_QUEUE_INFO _IOWR(VIRTIO_BE_IOC_MAGIC, 9, \
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struct virtio_queue_info)
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#define GH_GET_DRIVER_FEATURES _IOWR(VIRTIO_BE_IOC_MAGIC, 10, \
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struct virtio_driver_features)
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#define GH_ACK_DRIVER_OK _IOWR(VIRTIO_BE_IOC_MAGIC, 11, __u32)
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#define GH_SET_APP_READY _IO(VIRTIO_BE_IOC_MAGIC, 12)
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#define GH_ACK_RESET _IOW(VIRTIO_BE_IOC_MAGIC, 13, struct virtio_ack_reset)
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struct virtio_ack_reset {
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__u32 label;
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__u32 reserved;
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};
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struct virtio_driver_features {
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__u32 label;
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__u32 reserved;
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__u32 features_sel;
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__u32 features;
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};
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struct virtio_queue_info {
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__u32 label;
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__u32 queue_sel;
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__u32 queue_num;
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__u32 queue_ready;
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__u64 queue_desc;
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__u64 queue_driver;
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__u64 queue_device;
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};
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struct virtio_config_data {
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__u32 label;
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__u32 config_size;
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__u64 config_data;
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};
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struct virtio_dev_features {
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__u32 label;
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__u32 reserved;
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__u32 features_sel;
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__u32 features;
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};
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struct virtio_queue_max {
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__u32 label;
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__u32 reserved;
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__u32 queue_sel;
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__u32 queue_num_max;
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};
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struct virtio_event {
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__u32 label;
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__u32 event;
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__u32 event_data;
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__u32 reserved;
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};
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struct virtio_eventfd {
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__u32 label;
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__u32 flags;
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__u32 queue_num;
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__s32 fd;
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};
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struct virtio_irqfd {
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__u32 label;
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__u32 flags;
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__s32 fd;
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__u32 reserved;
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};
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#endif /* _LINUX_VIRTIO_BACKEND_H */
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