Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: (GPL-2.0 OR CDDL-1.0) */
2/* Copyright (C) 2006-2016 Oracle Corporation */
3
4#ifndef __VBOX_UTILS_H__
5#define __VBOX_UTILS_H__
6
7#include <linux/printk.h>
8#include <linux/vbox_vmmdev_types.h>
9
10struct vbg_dev;
11
12/**
13 * vboxguest logging functions, these log both to the backdoor and call
14 * the equivalent kernel pr_foo function.
15 */
16__printf(1, 2) void vbg_info(const char *fmt, ...);
17__printf(1, 2) void vbg_warn(const char *fmt, ...);
18__printf(1, 2) void vbg_err(const char *fmt, ...);
19
20/* Only use backdoor logging for non-dynamic debug builds */
21#if defined(DEBUG) && !defined(CONFIG_DYNAMIC_DEBUG)
22__printf(1, 2) void vbg_debug(const char *fmt, ...);
23#else
24#define vbg_debug pr_debug
25#endif
26
27int vbg_hgcm_connect(struct vbg_dev *gdev,
28 struct vmmdev_hgcm_service_location *loc,
29 u32 *client_id, int *vbox_status);
30
31int vbg_hgcm_disconnect(struct vbg_dev *gdev, u32 client_id, int *vbox_status);
32
33int vbg_hgcm_call(struct vbg_dev *gdev, u32 client_id, u32 function,
34 u32 timeout_ms, struct vmmdev_hgcm_function_parameter *parms,
35 u32 parm_count, int *vbox_status);
36
37/**
38 * Convert a VirtualBox status code to a standard Linux kernel return value.
39 * Return: 0 or negative errno value.
40 * @rc: VirtualBox status code to convert.
41 */
42int vbg_status_code_to_errno(int rc);
43
44/**
45 * Helper for the vboxsf driver to get a reference to the guest device.
46 * Return: a pointer to the gdev; or a ERR_PTR value on error.
47 */
48struct vbg_dev *vbg_get_gdev(void);
49
50/**
51 * Helper for the vboxsf driver to put a guest device reference.
52 * @gdev: Reference returned by vbg_get_gdev to put.
53 */
54void vbg_put_gdev(struct vbg_dev *gdev);
55
56#endif