222 lines
7.1 KiB
C
222 lines
7.1 KiB
C
/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
|
|
/*
|
|
* Freescale hypervisor ioctl and kernel interface
|
|
*
|
|
* Copyright (C) 2008-2011 Freescale Semiconductor, Inc.
|
|
* Author: Timur Tabi <timur@freescale.com>
|
|
*
|
|
* 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 Freescale Semiconductor nor the
|
|
* names of its contributors may be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
*
|
|
* ALTERNATIVELY, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") as published by the Free Software
|
|
* Foundation, either version 2 of that License or (at your option) any
|
|
* later version.
|
|
*
|
|
* This software is provided by Freescale Semiconductor "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 Freescale Semiconductor 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.
|
|
*
|
|
* This file is used by the Freescale hypervisor management driver. It can
|
|
* also be included by applications that need to communicate with the driver
|
|
* via the ioctl interface.
|
|
*/
|
|
|
|
#ifndef _UAPIFSL_HYPERVISOR_H
|
|
#define _UAPIFSL_HYPERVISOR_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
/**
|
|
* struct fsl_hv_ioctl_restart - restart a partition
|
|
* @ret: return error code from the hypervisor
|
|
* @partition: the ID of the partition to restart, or -1 for the
|
|
* calling partition
|
|
*
|
|
* Used by FSL_HV_IOCTL_PARTITION_RESTART
|
|
*/
|
|
struct fsl_hv_ioctl_restart {
|
|
__u32 ret;
|
|
__u32 partition;
|
|
};
|
|
|
|
/**
|
|
* struct fsl_hv_ioctl_status - get a partition's status
|
|
* @ret: return error code from the hypervisor
|
|
* @partition: the ID of the partition to query, or -1 for the
|
|
* calling partition
|
|
* @status: The returned status of the partition
|
|
*
|
|
* Used by FSL_HV_IOCTL_PARTITION_GET_STATUS
|
|
*
|
|
* Values of 'status':
|
|
* 0 = Stopped
|
|
* 1 = Running
|
|
* 2 = Starting
|
|
* 3 = Stopping
|
|
*/
|
|
struct fsl_hv_ioctl_status {
|
|
__u32 ret;
|
|
__u32 partition;
|
|
__u32 status;
|
|
};
|
|
|
|
/**
|
|
* struct fsl_hv_ioctl_start - start a partition
|
|
* @ret: return error code from the hypervisor
|
|
* @partition: the ID of the partition to control
|
|
* @entry_point: The offset within the guest IMA to start execution
|
|
* @load: If non-zero, reload the partition's images before starting
|
|
*
|
|
* Used by FSL_HV_IOCTL_PARTITION_START
|
|
*/
|
|
struct fsl_hv_ioctl_start {
|
|
__u32 ret;
|
|
__u32 partition;
|
|
__u32 entry_point;
|
|
__u32 load;
|
|
};
|
|
|
|
/**
|
|
* struct fsl_hv_ioctl_stop - stop a partition
|
|
* @ret: return error code from the hypervisor
|
|
* @partition: the ID of the partition to stop, or -1 for the calling
|
|
* partition
|
|
*
|
|
* Used by FSL_HV_IOCTL_PARTITION_STOP
|
|
*/
|
|
struct fsl_hv_ioctl_stop {
|
|
__u32 ret;
|
|
__u32 partition;
|
|
};
|
|
|
|
/**
|
|
* struct fsl_hv_ioctl_memcpy - copy memory between partitions
|
|
* @ret: return error code from the hypervisor
|
|
* @source: the partition ID of the source partition, or -1 for this
|
|
* partition
|
|
* @target: the partition ID of the target partition, or -1 for this
|
|
* partition
|
|
* @reserved: reserved, must be set to 0
|
|
* @local_addr: user-space virtual address of a buffer in the local
|
|
* partition
|
|
* @remote_addr: guest physical address of a buffer in the
|
|
* remote partition
|
|
* @count: the number of bytes to copy. Both the local and remote
|
|
* buffers must be at least 'count' bytes long
|
|
*
|
|
* Used by FSL_HV_IOCTL_MEMCPY
|
|
*
|
|
* The 'local' partition is the partition that calls this ioctl. The
|
|
* 'remote' partition is a different partition. The data is copied from
|
|
* the 'source' paritition' to the 'target' partition.
|
|
*
|
|
* The buffer in the remote partition must be guest physically
|
|
* contiguous.
|
|
*
|
|
* This ioctl does not support copying memory between two remote
|
|
* partitions or within the same partition, so either 'source' or
|
|
* 'target' (but not both) must be -1. In other words, either
|
|
*
|
|
* source == local and target == remote
|
|
* or
|
|
* source == remote and target == local
|
|
*/
|
|
struct fsl_hv_ioctl_memcpy {
|
|
__u32 ret;
|
|
__u32 source;
|
|
__u32 target;
|
|
__u32 reserved; /* padding to ensure local_vaddr is aligned */
|
|
__u64 local_vaddr;
|
|
__u64 remote_paddr;
|
|
__u64 count;
|
|
};
|
|
|
|
/**
|
|
* struct fsl_hv_ioctl_doorbell - ring a doorbell
|
|
* @ret: return error code from the hypervisor
|
|
* @doorbell: the handle of the doorbell to ring doorbell
|
|
*
|
|
* Used by FSL_HV_IOCTL_DOORBELL
|
|
*/
|
|
struct fsl_hv_ioctl_doorbell {
|
|
__u32 ret;
|
|
__u32 doorbell;
|
|
};
|
|
|
|
/**
|
|
* struct fsl_hv_ioctl_prop - get/set a device tree property
|
|
* @ret: return error code from the hypervisor
|
|
* @handle: handle of partition whose tree to access
|
|
* @path: virtual address of path name of node to access
|
|
* @propname: virtual address of name of property to access
|
|
* @propval: virtual address of property data buffer
|
|
* @proplen: Size of property data buffer
|
|
* @reserved: reserved, must be set to 0
|
|
*
|
|
* Used by FSL_HV_IOCTL_DOORBELL
|
|
*/
|
|
struct fsl_hv_ioctl_prop {
|
|
__u32 ret;
|
|
__u32 handle;
|
|
__u64 path;
|
|
__u64 propname;
|
|
__u64 propval;
|
|
__u32 proplen;
|
|
__u32 reserved; /* padding to ensure structure is aligned */
|
|
};
|
|
|
|
/* The ioctl type, documented in ioctl-number.txt */
|
|
#define FSL_HV_IOCTL_TYPE 0xAF
|
|
|
|
/* Restart another partition */
|
|
#define FSL_HV_IOCTL_PARTITION_RESTART \
|
|
_IOWR(FSL_HV_IOCTL_TYPE, 1, struct fsl_hv_ioctl_restart)
|
|
|
|
/* Get a partition's status */
|
|
#define FSL_HV_IOCTL_PARTITION_GET_STATUS \
|
|
_IOWR(FSL_HV_IOCTL_TYPE, 2, struct fsl_hv_ioctl_status)
|
|
|
|
/* Boot another partition */
|
|
#define FSL_HV_IOCTL_PARTITION_START \
|
|
_IOWR(FSL_HV_IOCTL_TYPE, 3, struct fsl_hv_ioctl_start)
|
|
|
|
/* Stop this or another partition */
|
|
#define FSL_HV_IOCTL_PARTITION_STOP \
|
|
_IOWR(FSL_HV_IOCTL_TYPE, 4, struct fsl_hv_ioctl_stop)
|
|
|
|
/* Copy data from one partition to another */
|
|
#define FSL_HV_IOCTL_MEMCPY \
|
|
_IOWR(FSL_HV_IOCTL_TYPE, 5, struct fsl_hv_ioctl_memcpy)
|
|
|
|
/* Ring a doorbell */
|
|
#define FSL_HV_IOCTL_DOORBELL \
|
|
_IOWR(FSL_HV_IOCTL_TYPE, 6, struct fsl_hv_ioctl_doorbell)
|
|
|
|
/* Get a property from another guest's device tree */
|
|
#define FSL_HV_IOCTL_GETPROP \
|
|
_IOWR(FSL_HV_IOCTL_TYPE, 7, struct fsl_hv_ioctl_prop)
|
|
|
|
/* Set a property in another guest's device tree */
|
|
#define FSL_HV_IOCTL_SETPROP \
|
|
_IOWR(FSL_HV_IOCTL_TYPE, 8, struct fsl_hv_ioctl_prop)
|
|
|
|
|
|
#endif /* _UAPIFSL_HYPERVISOR_H */
|