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1/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR MIT) */2/******************************************************************************3 * privcmd.h4 *5 * Interface to /proc/xen/privcmd.6 *7 * Copyright (c) 2003-2005, K A Fraser8 *9 * This program is free software; you can redistribute it and/or10 * modify it under the terms of the GNU General Public License version 211 * as published by the Free Software Foundation; or, when distributed12 * separately from the Linux kernel or incorporated into other13 * software packages, subject to the following license:14 *15 * Permission is hereby granted, free of charge, to any person obtaining a copy16 * of this source file (the "Software"), to deal in the Software without17 * restriction, including without limitation the rights to use, copy, modify,18 * merge, publish, distribute, sublicense, and/or sell copies of the Software,19 * and to permit persons to whom the Software is furnished to do so, subject to20 * the following conditions:21 *22 * The above copyright notice and this permission notice shall be included in23 * all copies or substantial portions of the Software.24 *25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE28 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER29 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING30 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS31 * IN THE SOFTWARE.32 */33 34#ifndef __LINUX_PUBLIC_PRIVCMD_H__35#define __LINUX_PUBLIC_PRIVCMD_H__36 37#include <linux/types.h>38#include <linux/compiler.h>39#include <xen/interface/xen.h>40 41struct privcmd_hypercall {42 __u64 op;43 __u64 arg[5];44};45 46struct privcmd_mmap_entry {47 __u64 va;48 /*49 * This should be a GFN. It's not possible to change the name because50 * it's exposed to the user-space.51 */52 __u64 mfn;53 __u64 npages;54};55 56struct privcmd_mmap {57 int num;58 domid_t dom; /* target domain */59 struct privcmd_mmap_entry __user *entry;60};61 62struct privcmd_mmapbatch {63 int num; /* number of pages to populate */64 domid_t dom; /* target domain */65 __u64 addr; /* virtual address */66 xen_pfn_t __user *arr; /* array of mfns - or'd with67 PRIVCMD_MMAPBATCH_*_ERROR on err */68};69 70#define PRIVCMD_MMAPBATCH_MFN_ERROR 0xf0000000U71#define PRIVCMD_MMAPBATCH_PAGED_ERROR 0x80000000U72 73struct privcmd_mmapbatch_v2 {74 unsigned int num; /* number of pages to populate */75 domid_t dom; /* target domain */76 __u64 addr; /* virtual address */77 const xen_pfn_t __user *arr; /* array of mfns */78 int __user *err; /* array of error codes */79};80 81struct privcmd_dm_op_buf {82 void __user *uptr;83 size_t size;84};85 86struct privcmd_dm_op {87 domid_t dom;88 __u16 num;89 const struct privcmd_dm_op_buf __user *ubufs;90};91 92struct privcmd_mmap_resource {93 domid_t dom;94 __u32 type;95 __u32 id;96 __u32 idx;97 __u64 num;98 __u64 addr;99};100 101/* For privcmd_irqfd::flags */102#define PRIVCMD_IRQFD_FLAG_DEASSIGN (1 << 0)103 104struct privcmd_irqfd {105 __u64 dm_op;106 __u32 size; /* Size of structure pointed by dm_op */107 __u32 fd;108 __u32 flags;109 domid_t dom;110 __u8 pad[2];111};112 113/* For privcmd_ioeventfd::flags */114#define PRIVCMD_IOEVENTFD_FLAG_DEASSIGN (1 << 0)115 116struct privcmd_ioeventfd {117 __u64 ioreq;118 __u64 ports;119 __u64 addr;120 __u32 addr_len;121 __u32 event_fd;122 __u32 vcpus;123 __u32 vq;124 __u32 flags;125 domid_t dom;126 __u8 pad[2];127};128 129struct privcmd_pcidev_get_gsi {130 __u32 sbdf;131 __u32 gsi;132};133 134/*135 * @cmd: IOCTL_PRIVCMD_HYPERCALL136 * @arg: &privcmd_hypercall_t137 * Return: Value returned from execution of the specified hypercall.138 *139 * @cmd: IOCTL_PRIVCMD_MMAPBATCH_V2140 * @arg: &struct privcmd_mmapbatch_v2141 * Return: 0 on success (i.e., arg->err contains valid error codes for142 * each frame). On an error other than a failed frame remap, -1 is143 * returned and errno is set to EINVAL, EFAULT etc. As an exception,144 * if the operation was otherwise successful but any frame failed with145 * -ENOENT, then -1 is returned and errno is set to ENOENT.146 */147#define IOCTL_PRIVCMD_HYPERCALL \148 _IOC(_IOC_NONE, 'P', 0, sizeof(struct privcmd_hypercall))149#define IOCTL_PRIVCMD_MMAP \150 _IOC(_IOC_NONE, 'P', 2, sizeof(struct privcmd_mmap))151#define IOCTL_PRIVCMD_MMAPBATCH \152 _IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch))153#define IOCTL_PRIVCMD_MMAPBATCH_V2 \154 _IOC(_IOC_NONE, 'P', 4, sizeof(struct privcmd_mmapbatch_v2))155#define IOCTL_PRIVCMD_DM_OP \156 _IOC(_IOC_NONE, 'P', 5, sizeof(struct privcmd_dm_op))157#define IOCTL_PRIVCMD_RESTRICT \158 _IOC(_IOC_NONE, 'P', 6, sizeof(domid_t))159#define IOCTL_PRIVCMD_MMAP_RESOURCE \160 _IOC(_IOC_NONE, 'P', 7, sizeof(struct privcmd_mmap_resource))161#define IOCTL_PRIVCMD_IRQFD \162 _IOW('P', 8, struct privcmd_irqfd)163#define IOCTL_PRIVCMD_IOEVENTFD \164 _IOW('P', 9, struct privcmd_ioeventfd)165#define IOCTL_PRIVCMD_PCIDEV_GET_GSI \166 _IOC(_IOC_NONE, 'P', 10, sizeof(struct privcmd_pcidev_get_gsi))167 168#endif /* __LINUX_PUBLIC_PRIVCMD_H__ */169