mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2026-06-06 17:21:22 +00:00
bd31b1c53e
internal commit: 0ab1ea615e5cfbb0687a9d593a86a7b774386076 Signed-off-by: Anthony Xu <anthony.xu@intel.com>
105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/*
|
|
* Copyright (C) 2018 Intel Corporation. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* * Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
/* Routines to notify the VBS-K in kernel */
|
|
|
|
#include <stdio.h>
|
|
#include <sys/ioctl.h>
|
|
#include "virtio_kernel.h"
|
|
|
|
static int virtio_kernel_debug;
|
|
#define DPRINTF(params) do { if (virtio_kernel_debug) printf params; } while (0)
|
|
#define WPRINTF(params) (printf params)
|
|
|
|
static int
|
|
vbs_dev_info_set(int fd, void *arg)
|
|
{
|
|
return ioctl(fd, VBS_K_SET_DEV, arg);
|
|
}
|
|
|
|
static int
|
|
vbs_vqs_info_set(int fd, void *arg)
|
|
{
|
|
return ioctl(fd, VBS_K_SET_VQ, arg);
|
|
}
|
|
|
|
/* VBS-K common ops */
|
|
/* VBS-K init/reset */
|
|
int
|
|
vbs_kernel_init(int fd)
|
|
{
|
|
return VIRTIO_SUCCESS;
|
|
}
|
|
|
|
int
|
|
vbs_kernel_reset(int fd)
|
|
{
|
|
return VIRTIO_SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* We need a way to start/stop vbs_k execution since guest might want to
|
|
* change the configuration of the virtio device after VBS-K has been
|
|
* initialized.
|
|
*/
|
|
/* VBS-K start/stop */
|
|
int
|
|
vbs_kernel_start(int fd, struct vbs_dev_info *dev, struct vbs_vqs_info *vqs)
|
|
{
|
|
int ret;
|
|
|
|
if (fd < 0) {
|
|
WPRINTF(("%s: fd < 0\n", __func__));
|
|
return -VIRTIO_ERROR_FD_OPEN_FAILED;
|
|
}
|
|
|
|
ret = vbs_dev_info_set(fd, dev);
|
|
if (ret < 0) {
|
|
WPRINTF(("vbs_kernel_set_dev failed: ret %d\n", ret));
|
|
return ret;
|
|
}
|
|
|
|
ret = vbs_vqs_info_set(fd, vqs);
|
|
if (ret < 0) {
|
|
WPRINTF(("vbs_kernel_set_vqs failed: ret %d\n", ret));
|
|
return ret;
|
|
}
|
|
|
|
return VIRTIO_SUCCESS;
|
|
}
|
|
|
|
int
|
|
vbs_kernel_stop(int fd)
|
|
{
|
|
DPRINTF(("%s\n", __func__));
|
|
return VIRTIO_SUCCESS;
|
|
}
|