| /* | |
| * 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 */ |