1 /****************************************************************************** 2 * SPDX-License-Identifier: MIT OR GPL-2.0-only 3 * 4 * privcmd.h 5 * 6 * Interface to /proc/xen/privcmd. 7 * 8 * Copyright (c) 2003-2005, K A Fraser 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License version 2 12 * as published by the Free Software Foundation; or, when distributed 13 * separately from the Linux kernel or incorporated into other 14 * software packages, subject to the following license: 15 * 16 * Permission is hereby granted, free of charge, to any person obtaining a copy 17 * of this source file (the "Software"), to deal in the Software without 18 * restriction, including without limitation the rights to use, copy, modify, 19 * merge, publish, distribute, sublicense, and/or sell copies of the Software, 20 * and to permit persons to whom the Software is furnished to do so, subject to 21 * the following conditions: 22 * 23 * The above copyright notice and this permission notice shall be included in 24 * all copies or substantial portions of the Software. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 29 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 30 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 31 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 32 * IN THE SOFTWARE. 33 */ 34 35 #ifndef __XEN_PRIVCMD_H__ 36 #define __XEN_PRIVCMD_H__ 37 38 struct ioctl_privcmd_hypercall 39 { 40 unsigned long op; /* hypercall number */ 41 unsigned long arg[5]; /* arguments */ 42 long retval; /* return value */ 43 }; 44 45 struct ioctl_privcmd_mmapbatch { 46 int num; /* number of pages to populate */ 47 domid_t dom; /* target domain */ 48 unsigned long addr; /* virtual address */ 49 const xen_pfn_t *arr; /* array of mfns */ 50 int *err; /* array of error codes */ 51 }; 52 53 struct ioctl_privcmd_mmapresource { 54 domid_t dom; /* target domain */ 55 unsigned int type; /* type of resource to map */ 56 unsigned int id; /* type-specific resource identifier */ 57 unsigned int idx; /* the index of the initial frame to be mapped */ 58 unsigned long num; /* number of frames of the resource to be mapped */ 59 unsigned long addr; /* physical address to map into */ 60 /* 61 * Note: issuing an ioctl with num = addr = 0 will return the size of 62 * the resource. 63 */ 64 }; 65 66 struct privcmd_dmop_buf { 67 void *uptr; /* pointer to memory (in calling process) */ 68 size_t size; /* size of the buffer */ 69 }; 70 71 struct ioctl_privcmd_dmop { 72 domid_t dom; /* target domain */ 73 unsigned int num; /* num of buffers */ 74 const struct privcmd_dmop_buf *ubufs; /* array of buffers */ 75 }; 76 77 #define IOCTL_PRIVCMD_HYPERCALL \ 78 _IOWR('E', 0, struct ioctl_privcmd_hypercall) 79 #define IOCTL_PRIVCMD_MMAPBATCH \ 80 _IOWR('E', 1, struct ioctl_privcmd_mmapbatch) 81 #define IOCTL_PRIVCMD_MMAP_RESOURCE \ 82 _IOWR('E', 2, struct ioctl_privcmd_mmapresource) 83 #define IOCTL_PRIVCMD_DM_OP \ 84 _IOW('E', 3, struct ioctl_privcmd_dmop) 85 #define IOCTL_PRIVCMD_RESTRICT \ 86 _IOW('E', 4, domid_t) 87 88 #endif /* !__XEN_PRIVCMD_H__ */ 89