| /* |
| * 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 FSL_HYPERVISOR_H |
| #define FSL_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 |