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129 lines
4.2 KiB
129 lines
4.2 KiB
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR MIT) */ |
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/****************************************************************************** |
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* privcmd.h |
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* |
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* Interface to /proc/xen/privcmd. |
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* |
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* Copyright (c) 2003-2005, K A Fraser |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License version 2 |
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* as published by the Free Software Foundation; or, when distributed |
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* separately from the Linux kernel or incorporated into other |
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* software packages, subject to the following license: |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this source file (the "Software"), to deal in the Software without |
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* restriction, including without limitation the rights to use, copy, modify, |
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, |
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* and to permit persons to whom the Software is furnished to do so, subject to |
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* the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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* IN THE SOFTWARE. |
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*/ |
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#ifndef __LINUX_PUBLIC_PRIVCMD_H__ |
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#define __LINUX_PUBLIC_PRIVCMD_H__ |
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#include <linux/types.h> |
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#include <linux/compiler.h> |
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#include <xen/interface/xen.h> |
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struct privcmd_hypercall { |
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__u64 op; |
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__u64 arg[5]; |
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}; |
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struct privcmd_mmap_entry { |
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__u64 va; |
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/* |
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* This should be a GFN. It's not possible to change the name because |
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* it's exposed to the user-space. |
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*/ |
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__u64 mfn; |
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__u64 npages; |
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}; |
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struct privcmd_mmap { |
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int num; |
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domid_t dom; /* target domain */ |
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struct privcmd_mmap_entry __user *entry; |
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}; |
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struct privcmd_mmapbatch { |
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int num; /* number of pages to populate */ |
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domid_t dom; /* target domain */ |
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__u64 addr; /* virtual address */ |
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xen_pfn_t __user *arr; /* array of mfns - or'd with |
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PRIVCMD_MMAPBATCH_*_ERROR on err */ |
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}; |
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#define PRIVCMD_MMAPBATCH_MFN_ERROR 0xf0000000U |
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#define PRIVCMD_MMAPBATCH_PAGED_ERROR 0x80000000U |
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struct privcmd_mmapbatch_v2 { |
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unsigned int num; /* number of pages to populate */ |
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domid_t dom; /* target domain */ |
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__u64 addr; /* virtual address */ |
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const xen_pfn_t __user *arr; /* array of mfns */ |
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int __user *err; /* array of error codes */ |
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}; |
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struct privcmd_dm_op_buf { |
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void __user *uptr; |
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size_t size; |
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}; |
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struct privcmd_dm_op { |
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domid_t dom; |
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__u16 num; |
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const struct privcmd_dm_op_buf __user *ubufs; |
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}; |
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struct privcmd_mmap_resource { |
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domid_t dom; |
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__u32 type; |
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__u32 id; |
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__u32 idx; |
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__u64 num; |
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__u64 addr; |
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}; |
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/* |
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* @cmd: IOCTL_PRIVCMD_HYPERCALL |
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* @arg: &privcmd_hypercall_t |
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* Return: Value returned from execution of the specified hypercall. |
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* |
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* @cmd: IOCTL_PRIVCMD_MMAPBATCH_V2 |
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* @arg: &struct privcmd_mmapbatch_v2 |
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* Return: 0 on success (i.e., arg->err contains valid error codes for |
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* each frame). On an error other than a failed frame remap, -1 is |
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* returned and errno is set to EINVAL, EFAULT etc. As an exception, |
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* if the operation was otherwise successful but any frame failed with |
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* -ENOENT, then -1 is returned and errno is set to ENOENT. |
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*/ |
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#define IOCTL_PRIVCMD_HYPERCALL \ |
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_IOC(_IOC_NONE, 'P', 0, sizeof(struct privcmd_hypercall)) |
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#define IOCTL_PRIVCMD_MMAP \ |
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_IOC(_IOC_NONE, 'P', 2, sizeof(struct privcmd_mmap)) |
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#define IOCTL_PRIVCMD_MMAPBATCH \ |
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_IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch)) |
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#define IOCTL_PRIVCMD_MMAPBATCH_V2 \ |
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_IOC(_IOC_NONE, 'P', 4, sizeof(struct privcmd_mmapbatch_v2)) |
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#define IOCTL_PRIVCMD_DM_OP \ |
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_IOC(_IOC_NONE, 'P', 5, sizeof(struct privcmd_dm_op)) |
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#define IOCTL_PRIVCMD_RESTRICT \ |
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_IOC(_IOC_NONE, 'P', 6, sizeof(domid_t)) |
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#define IOCTL_PRIVCMD_MMAP_RESOURCE \ |
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_IOC(_IOC_NONE, 'P', 7, sizeof(struct privcmd_mmap_resource)) |
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#endif /* __LINUX_PUBLIC_PRIVCMD_H__ */
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