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 __XEN_PRIVCMD_H__ 34 #define __XEN_PRIVCMD_H__ 35 36 struct ioctl_privcmd_hypercall 37 { 38 unsigned long op; /* hypercall number */ 39 unsigned long arg[5]; /* arguments */ 40 long retval; /* return value */ 41 }; 42 typedef struct ioctl_privcmd_hypercall privcmd_hypercall_t; 43 44 struct ioctl_privcmd_mmapbatch { 45 int num; /* number of pages to populate */ 46 domid_t dom; /* target domain */ 47 unsigned long addr; /* virtual address */ 48 const xen_pfn_t *arr; /* array of mfns */ 49 int *err; /* array of error codes */ 50 }; 51 typedef struct ioctl_privcmd_mmapbatch privcmd_mmapbatch_t; 52 53 typedef struct privcmd_mmap_entry { 54 unsigned long va; 55 unsigned long mfn; 56 unsigned long npages; 57 } privcmd_mmap_entry_t; 58 59 struct ioctl_privcmd_mmapresource { 60 domid_t dom; /* target domain */ 61 unsigned int type; /* type of resource to map */ 62 unsigned int id; /* type-specific resource identifier */ 63 unsigned int idx; /* the index of the initial frame to be mapped */ 64 unsigned long num; /* number of frames of the resource to be mapped */ 65 unsigned long addr; /* physical address to map into */ 66 }; 67 typedef struct ioctl_privcmd_mmapresource privcmd_mmap_resource_t; 68 69 struct privcmd_dmop_buf { 70 void *uptr; /* pointer to memory (in calling process) */ 71 size_t size; /* size of the buffer */ 72 }; 73 typedef struct privcmd_dmop_buf privcmd_dm_op_buf_t; 74 75 struct ioctl_privcmd_dmop { 76 domid_t dom; /* target domain */ 77 unsigned int num; /* num of buffers */ 78 const struct privcmd_dmop_buf *ubufs; /* array of buffers */ 79 }; 80 typedef struct ioctl_privcmd_dmop privcmd_dm_op_t; 81 82 #define IOCTL_PRIVCMD_HYPERCALL \ 83 _IOWR('E', 0, struct ioctl_privcmd_hypercall) 84 #define IOCTL_PRIVCMD_MMAPBATCH \ 85 _IOWR('E', 1, struct ioctl_privcmd_mmapbatch) 86 #define IOCTL_PRIVCMD_MMAP_RESOURCE \ 87 _IOW('E', 2, struct ioctl_privcmd_mmapresource) 88 #define IOCTL_PRIVCMD_DM_OP \ 89 _IOW('E', 3, struct ioctl_privcmd_dmop) 90 #define IOCTL_PRIVCMD_RESTRICT \ 91 _IOW('E', 4, domid_t) 92 93 #endif /* !__XEN_PRIVCMD_H__ */ 94