Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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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, u32 requestor,
28 struct vmmdev_hgcm_service_location *loc,
29 u32 *client_id, int *vbox_status);
30
31int vbg_hgcm_disconnect(struct vbg_dev *gdev, u32 requestor,
32 u32 client_id, int *vbox_status);
33
34int vbg_hgcm_call(struct vbg_dev *gdev, u32 requestor, u32 client_id,
35 u32 function, u32 timeout_ms,
36 struct vmmdev_hgcm_function_parameter *parms, u32 parm_count,
37 int *vbox_status);
38
39/**
40 * Convert a VirtualBox status code to a standard Linux kernel return value.
41 * Return: 0 or negative errno value.
42 * @rc: VirtualBox status code to convert.
43 */
44int vbg_status_code_to_errno(int rc);
45
46/**
47 * Helper for the vboxsf driver to get a reference to the guest device.
48 * Return: a pointer to the gdev; or a ERR_PTR value on error.
49 */
50struct vbg_dev *vbg_get_gdev(void);
51
52/**
53 * Helper for the vboxsf driver to put a guest device reference.
54 * @gdev: Reference returned by vbg_get_gdev to put.
55 */
56void vbg_put_gdev(struct vbg_dev *gdev);
57
58#endif