1 /****************************************************************************** 2 * privcmd.h 3 * 4 * Interface to /dev/xen/privcmd. 5 * 6 * Copyright (c) 2003-2005, K A Fraser 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License version 2 10 * as published by the Free Software Foundation; or, when distributed 11 * separately from the Linux kernel or incorporated into other 12 * software packages, subject to the following license: 13 * 14 * Permission is hereby granted, free of charge, to any person obtaining a copy 15 * of this source file (the "Software"), to deal in the Software without 16 * restriction, including without limitation the rights to use, copy, modify, 17 * merge, publish, distribute, sublicense, and/or sell copies of the Software, 18 * and to permit persons to whom the Software is furnished to do so, subject to 19 * the following conditions: 20 * 21 * The above copyright notice and this permission notice shall be included in 22 * all copies or substantial portions of the Software. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 27 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 28 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 29 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 30 * IN THE SOFTWARE. 31 */ 32 33 #ifndef __LINUX_PUBLIC_PRIVCMD_H__ 34 #define __LINUX_PUBLIC_PRIVCMD_H__ 35 36 #include <linux/types.h> 37 38 #ifndef __user 39 #define __user 40 #endif 41 42 typedef struct privcmd_hypercall 43 { 44 __u64 op; 45 __u64 arg[5]; 46 } privcmd_hypercall_t; 47 48 typedef struct privcmd_mmap_entry { 49 __u64 va; 50 __u64 mfn; 51 __u64 npages; 52 } privcmd_mmap_entry_t; 53 54 typedef struct privcmd_mmap { 55 int num; 56 domid_t dom; /* target domain */ 57 privcmd_mmap_entry_t __user *entry; 58 } privcmd_mmap_t; 59 60 typedef struct privcmd_mmapbatch { 61 int num; /* number of pages to populate */ 62 domid_t dom; /* target domain */ 63 __u64 addr; /* virtual address */ 64 xen_pfn_t __user *arr; /* array of mfns - top nibble set on err */ 65 } privcmd_mmapbatch_t; 66 67 #define PRIVCMD_MMAPBATCH_MFN_ERROR 0xf0000000U 68 #define PRIVCMD_MMAPBATCH_PAGED_ERROR 0x80000000U 69 70 typedef struct privcmd_mmapbatch_v2 { 71 unsigned int num; /* number of pages to populate */ 72 domid_t dom; /* target domain */ 73 __u64 addr; /* virtual address */ 74 const xen_pfn_t __user *arr; /* array of mfns */ 75 int __user *err; /* array of error codes */ 76 } privcmd_mmapbatch_v2_t; 77 78 typedef struct privcmd_dm_op_buf { 79 void __user *uptr; 80 size_t size; 81 } privcmd_dm_op_buf_t; 82 83 typedef struct privcmd_dm_op { 84 domid_t dom; 85 __u16 num; 86 const privcmd_dm_op_buf_t __user *ubufs; 87 } privcmd_dm_op_t; 88 89 typedef struct privcmd_mmap_resource { 90 domid_t dom; 91 __u32 type; 92 __u32 id; 93 __u32 idx; 94 __u64 num; 95 __u64 addr; 96 } privcmd_mmap_resource_t; 97 98 /* 99 * @cmd: IOCTL_PRIVCMD_HYPERCALL 100 * @arg: &privcmd_hypercall_t 101 * Return: Value returned from execution of the specified hypercall. 102 */ 103 #define IOCTL_PRIVCMD_HYPERCALL \ 104 _IOC(_IOC_NONE, 'P', 0, sizeof(privcmd_hypercall_t)) 105 #define IOCTL_PRIVCMD_MMAP \ 106 _IOC(_IOC_NONE, 'P', 2, sizeof(privcmd_mmap_t)) 107 #define IOCTL_PRIVCMD_MMAPBATCH \ 108 _IOC(_IOC_NONE, 'P', 3, sizeof(privcmd_mmapbatch_t)) 109 #define IOCTL_PRIVCMD_MMAPBATCH_V2 \ 110 _IOC(_IOC_NONE, 'P', 4, sizeof(privcmd_mmapbatch_v2_t)) 111 #define IOCTL_PRIVCMD_DM_OP \ 112 _IOC(_IOC_NONE, 'P', 5, sizeof(privcmd_dm_op_t)) 113 #define IOCTL_PRIVCMD_RESTRICT \ 114 _IOC(_IOC_NONE, 'P', 6, sizeof(domid_t)) 115 #define IOCTL_PRIVCMD_MMAP_RESOURCE \ 116 _IOC(_IOC_NONE, 'P', 7, sizeof(privcmd_mmap_resource_t)) 117 #define IOCTL_PRIVCMD_UNIMPLEMENTED \ 118 _IOC(_IOC_NONE, 'P', 0xFF, 0) 119 120 #endif /* __LINUX_PUBLIC_PRIVCMD_H__ */ 121