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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222/* 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_vaddr: user-space virtual address of a buffer in the local * partition * @remote_paddr: 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 */