1*4882a593Smuzhiyun /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR MIT) */ 2*4882a593Smuzhiyun /****************************************************************************** 3*4882a593Smuzhiyun * privcmd.h 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Interface to /proc/xen/privcmd. 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Copyright (c) 2003-2005, K A Fraser 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or 10*4882a593Smuzhiyun * modify it under the terms of the GNU General Public License version 2 11*4882a593Smuzhiyun * as published by the Free Software Foundation; or, when distributed 12*4882a593Smuzhiyun * separately from the Linux kernel or incorporated into other 13*4882a593Smuzhiyun * software packages, subject to the following license: 14*4882a593Smuzhiyun * 15*4882a593Smuzhiyun * Permission is hereby granted, free of charge, to any person obtaining a copy 16*4882a593Smuzhiyun * of this source file (the "Software"), to deal in the Software without 17*4882a593Smuzhiyun * restriction, including without limitation the rights to use, copy, modify, 18*4882a593Smuzhiyun * merge, publish, distribute, sublicense, and/or sell copies of the Software, 19*4882a593Smuzhiyun * and to permit persons to whom the Software is furnished to do so, subject to 20*4882a593Smuzhiyun * the following conditions: 21*4882a593Smuzhiyun * 22*4882a593Smuzhiyun * The above copyright notice and this permission notice shall be included in 23*4882a593Smuzhiyun * all copies or substantial portions of the Software. 24*4882a593Smuzhiyun * 25*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 26*4882a593Smuzhiyun * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 27*4882a593Smuzhiyun * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 28*4882a593Smuzhiyun * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 29*4882a593Smuzhiyun * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 30*4882a593Smuzhiyun * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 31*4882a593Smuzhiyun * IN THE SOFTWARE. 32*4882a593Smuzhiyun */ 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun #ifndef __LINUX_PUBLIC_PRIVCMD_H__ 35*4882a593Smuzhiyun #define __LINUX_PUBLIC_PRIVCMD_H__ 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun #include <linux/types.h> 38*4882a593Smuzhiyun #include <linux/compiler.h> 39*4882a593Smuzhiyun #include <xen/interface/xen.h> 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun struct privcmd_hypercall { 42*4882a593Smuzhiyun __u64 op; 43*4882a593Smuzhiyun __u64 arg[5]; 44*4882a593Smuzhiyun }; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun struct privcmd_mmap_entry { 47*4882a593Smuzhiyun __u64 va; 48*4882a593Smuzhiyun /* 49*4882a593Smuzhiyun * This should be a GFN. It's not possible to change the name because 50*4882a593Smuzhiyun * it's exposed to the user-space. 51*4882a593Smuzhiyun */ 52*4882a593Smuzhiyun __u64 mfn; 53*4882a593Smuzhiyun __u64 npages; 54*4882a593Smuzhiyun }; 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun struct privcmd_mmap { 57*4882a593Smuzhiyun int num; 58*4882a593Smuzhiyun domid_t dom; /* target domain */ 59*4882a593Smuzhiyun struct privcmd_mmap_entry __user *entry; 60*4882a593Smuzhiyun }; 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun struct privcmd_mmapbatch { 63*4882a593Smuzhiyun int num; /* number of pages to populate */ 64*4882a593Smuzhiyun domid_t dom; /* target domain */ 65*4882a593Smuzhiyun __u64 addr; /* virtual address */ 66*4882a593Smuzhiyun xen_pfn_t __user *arr; /* array of mfns - or'd with 67*4882a593Smuzhiyun PRIVCMD_MMAPBATCH_*_ERROR on err */ 68*4882a593Smuzhiyun }; 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun #define PRIVCMD_MMAPBATCH_MFN_ERROR 0xf0000000U 71*4882a593Smuzhiyun #define PRIVCMD_MMAPBATCH_PAGED_ERROR 0x80000000U 72*4882a593Smuzhiyun 73*4882a593Smuzhiyun struct privcmd_mmapbatch_v2 { 74*4882a593Smuzhiyun unsigned int num; /* number of pages to populate */ 75*4882a593Smuzhiyun domid_t dom; /* target domain */ 76*4882a593Smuzhiyun __u64 addr; /* virtual address */ 77*4882a593Smuzhiyun const xen_pfn_t __user *arr; /* array of mfns */ 78*4882a593Smuzhiyun int __user *err; /* array of error codes */ 79*4882a593Smuzhiyun }; 80*4882a593Smuzhiyun 81*4882a593Smuzhiyun struct privcmd_dm_op_buf { 82*4882a593Smuzhiyun void __user *uptr; 83*4882a593Smuzhiyun size_t size; 84*4882a593Smuzhiyun }; 85*4882a593Smuzhiyun 86*4882a593Smuzhiyun struct privcmd_dm_op { 87*4882a593Smuzhiyun domid_t dom; 88*4882a593Smuzhiyun __u16 num; 89*4882a593Smuzhiyun const struct privcmd_dm_op_buf __user *ubufs; 90*4882a593Smuzhiyun }; 91*4882a593Smuzhiyun 92*4882a593Smuzhiyun struct privcmd_mmap_resource { 93*4882a593Smuzhiyun domid_t dom; 94*4882a593Smuzhiyun __u32 type; 95*4882a593Smuzhiyun __u32 id; 96*4882a593Smuzhiyun __u32 idx; 97*4882a593Smuzhiyun __u64 num; 98*4882a593Smuzhiyun __u64 addr; 99*4882a593Smuzhiyun }; 100*4882a593Smuzhiyun 101*4882a593Smuzhiyun /* 102*4882a593Smuzhiyun * @cmd: IOCTL_PRIVCMD_HYPERCALL 103*4882a593Smuzhiyun * @arg: &privcmd_hypercall_t 104*4882a593Smuzhiyun * Return: Value returned from execution of the specified hypercall. 105*4882a593Smuzhiyun * 106*4882a593Smuzhiyun * @cmd: IOCTL_PRIVCMD_MMAPBATCH_V2 107*4882a593Smuzhiyun * @arg: &struct privcmd_mmapbatch_v2 108*4882a593Smuzhiyun * Return: 0 on success (i.e., arg->err contains valid error codes for 109*4882a593Smuzhiyun * each frame). On an error other than a failed frame remap, -1 is 110*4882a593Smuzhiyun * returned and errno is set to EINVAL, EFAULT etc. As an exception, 111*4882a593Smuzhiyun * if the operation was otherwise successful but any frame failed with 112*4882a593Smuzhiyun * -ENOENT, then -1 is returned and errno is set to ENOENT. 113*4882a593Smuzhiyun */ 114*4882a593Smuzhiyun #define IOCTL_PRIVCMD_HYPERCALL \ 115*4882a593Smuzhiyun _IOC(_IOC_NONE, 'P', 0, sizeof(struct privcmd_hypercall)) 116*4882a593Smuzhiyun #define IOCTL_PRIVCMD_MMAP \ 117*4882a593Smuzhiyun _IOC(_IOC_NONE, 'P', 2, sizeof(struct privcmd_mmap)) 118*4882a593Smuzhiyun #define IOCTL_PRIVCMD_MMAPBATCH \ 119*4882a593Smuzhiyun _IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch)) 120*4882a593Smuzhiyun #define IOCTL_PRIVCMD_MMAPBATCH_V2 \ 121*4882a593Smuzhiyun _IOC(_IOC_NONE, 'P', 4, sizeof(struct privcmd_mmapbatch_v2)) 122*4882a593Smuzhiyun #define IOCTL_PRIVCMD_DM_OP \ 123*4882a593Smuzhiyun _IOC(_IOC_NONE, 'P', 5, sizeof(struct privcmd_dm_op)) 124*4882a593Smuzhiyun #define IOCTL_PRIVCMD_RESTRICT \ 125*4882a593Smuzhiyun _IOC(_IOC_NONE, 'P', 6, sizeof(domid_t)) 126*4882a593Smuzhiyun #define IOCTL_PRIVCMD_MMAP_RESOURCE \ 127*4882a593Smuzhiyun _IOC(_IOC_NONE, 'P', 7, sizeof(struct privcmd_mmap_resource)) 128*4882a593Smuzhiyun 129*4882a593Smuzhiyun #endif /* __LINUX_PUBLIC_PRIVCMD_H__ */ 130