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PK������i\��� n��n��	��privcmd.hnu��[�����������/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR MIT) */
/******************************************************************************
 * privcmd.h
 *
 * Interface to /proc/xen/privcmd.
 *
 * Copyright (c) 2003-2005, K A Fraser
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation; or, when distributed
 * separately from the Linux kernel or incorporated into other
 * software packages, subject to the following license:
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this source file (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use, copy, modify,
 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#ifndef __LINUX_PUBLIC_PRIVCMD_H__
#define __LINUX_PUBLIC_PRIVCMD_H__

#include <linux/types.h>

#include <xen/interface/xen.h>

struct privcmd_hypercall {
	__u64 op;
	__u64 arg[5];
};

struct privcmd_mmap_entry {
	__u64 va;
	/*
	 * This should be a GFN. It's not possible to change the name because
	 * it's exposed to the user-space.
	 */
	__u64 mfn;
	__u64 npages;
};

struct privcmd_mmap {
	int num;
	domid_t dom; /* target domain */
	struct privcmd_mmap_entry *entry;
};

struct privcmd_mmapbatch {
	int num;     /* number of pages to populate */
	domid_t dom; /* target domain */
	__u64 addr;  /* virtual address */
	xen_pfn_t *arr; /* array of mfns - or'd with
				  PRIVCMD_MMAPBATCH_*_ERROR on err */
};

#define PRIVCMD_MMAPBATCH_MFN_ERROR     0xf0000000U
#define PRIVCMD_MMAPBATCH_PAGED_ERROR   0x80000000U

struct privcmd_mmapbatch_v2 {
	unsigned int num; /* number of pages to populate */
	domid_t dom;      /* target domain */
	__u64 addr;       /* virtual address */
	const xen_pfn_t *arr; /* array of mfns */
	int *err;  /* array of error codes */
};

struct privcmd_dm_op_buf {
	void *uptr;
	size_t size;
};

struct privcmd_dm_op {
	domid_t dom;
	__u16 num;
	const struct privcmd_dm_op_buf *ubufs;
};

struct privcmd_mmap_resource {
	domid_t dom;
	__u32 type;
	__u32 id;
	__u32 idx;
	__u64 num;
	__u64 addr;
};

/*
 * @cmd: IOCTL_PRIVCMD_HYPERCALL
 * @arg: &privcmd_hypercall_t
 * Return: Value returned from execution of the specified hypercall.
 *
 * @cmd: IOCTL_PRIVCMD_MMAPBATCH_V2
 * @arg: &struct privcmd_mmapbatch_v2
 * Return: 0 on success (i.e., arg->err contains valid error codes for
 * each frame).  On an error other than a failed frame remap, -1 is
 * returned and errno is set to EINVAL, EFAULT etc.  As an exception,
 * if the operation was otherwise successful but any frame failed with
 * -ENOENT, then -1 is returned and errno is set to ENOENT.
 */
#define IOCTL_PRIVCMD_HYPERCALL					\
	_IOC(_IOC_NONE, 'P', 0, sizeof(struct privcmd_hypercall))
#define IOCTL_PRIVCMD_MMAP					\
	_IOC(_IOC_NONE, 'P', 2, sizeof(struct privcmd_mmap))
#define IOCTL_PRIVCMD_MMAPBATCH					\
	_IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch))
#define IOCTL_PRIVCMD_MMAPBATCH_V2				\
	_IOC(_IOC_NONE, 'P', 4, sizeof(struct privcmd_mmapbatch_v2))
#define IOCTL_PRIVCMD_DM_OP					\
	_IOC(_IOC_NONE, 'P', 5, sizeof(struct privcmd_dm_op))
#define IOCTL_PRIVCMD_RESTRICT					\
	_IOC(_IOC_NONE, 'P', 6, sizeof(domid_t))
#define IOCTL_PRIVCMD_MMAP_RESOURCE				\
	_IOC(_IOC_NONE, 'P', 7, sizeof(struct privcmd_mmap_resource))

#endif /* __LINUX_PUBLIC_PRIVCMD_H__ */
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��gntalloc.hnu��[�����������/******************************************************************************
 * gntalloc.h
 *
 * Interface to /dev/xen/gntalloc.
 *
 * Author: Daniel De Graaf <dgdegra@tycho.nsa.gov>
 *
 * This file is in the public domain.
 */

#ifndef __LINUX_PUBLIC_GNTALLOC_H__
#define __LINUX_PUBLIC_GNTALLOC_H__

#include <linux/types.h>

/*
 * Allocates a new page and creates a new grant reference.
 */
#define IOCTL_GNTALLOC_ALLOC_GREF \
_IOC(_IOC_NONE, 'G', 5, sizeof(struct ioctl_gntalloc_alloc_gref))
struct ioctl_gntalloc_alloc_gref {
	/* IN parameters */
	/* The ID of the domain to be given access to the grants. */
	__u16 domid;
	/* Flags for this mapping */
	__u16 flags;
	/* Number of pages to map */
	__u32 count;
	/* OUT parameters */
	/* The offset to be used on a subsequent call to mmap(). */
	__u64 index;
	/* The grant references of the newly created grant, one per page */
	/* Variable size, depending on count */
	__u32 gref_ids[1];
};

#define GNTALLOC_FLAG_WRITABLE 1

/*
 * Deallocates the grant reference, allowing the associated page to be freed if
 * no other domains are using it.
 */
#define IOCTL_GNTALLOC_DEALLOC_GREF \
_IOC(_IOC_NONE, 'G', 6, sizeof(struct ioctl_gntalloc_dealloc_gref))
struct ioctl_gntalloc_dealloc_gref {
	/* IN parameters */
	/* The offset returned in the map operation */
	__u64 index;
	/* Number of references to unmap */
	__u32 count;
};

/*
 * Sets up an unmap notification within the page, so that the other side can do
 * cleanup if this side crashes. Required to implement cross-domain robust
 * mutexes or close notification on communication channels.
 *
 * Each mapped page only supports one notification; multiple calls referring to
 * the same page overwrite the previous notification. You must clear the
 * notification prior to the IOCTL_GNTALLOC_DEALLOC_GREF if you do not want it
 * to occur.
 */
#define IOCTL_GNTALLOC_SET_UNMAP_NOTIFY \
_IOC(_IOC_NONE, 'G', 7, sizeof(struct ioctl_gntalloc_unmap_notify))
struct ioctl_gntalloc_unmap_notify {
	/* IN parameters */
	/* Offset in the file descriptor for a byte within the page (same as
	 * used in mmap). If using UNMAP_NOTIFY_CLEAR_BYTE, this is the byte to
	 * be cleared. Otherwise, it can be any byte in the page whose
	 * notification we are adjusting.
	 */
	__u64 index;
	/* Action(s) to take on unmap */
	__u32 action;
	/* Event channel to notify */
	__u32 event_channel_port;
};

/* Clear (set to zero) the byte specified by index */
#define UNMAP_NOTIFY_CLEAR_BYTE 0x1
/* Send an interrupt on the indicated event channel */
#define UNMAP_NOTIFY_SEND_EVENT 0x2

#endif /* __LINUX_PUBLIC_GNTALLOC_H__ */
PK������i\S,&��������gntdev.hnu��[�����������/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR MIT) */
/******************************************************************************
 * gntdev.h
 * 
 * Interface to /dev/xen/gntdev.
 * 
 * Copyright (c) 2007, D G Murray
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation; or, when distributed
 * separately from the Linux kernel or incorporated into other
 * software packages, subject to the following license:
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this source file (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use, copy, modify,
 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#ifndef __LINUX_PUBLIC_GNTDEV_H__
#define __LINUX_PUBLIC_GNTDEV_H__

#include <linux/types.h>

struct ioctl_gntdev_grant_ref {
	/* The domain ID of the grant to be mapped. */
	__u32 domid;
	/* The grant reference of the grant to be mapped. */
	__u32 ref;
};

/*
 * Inserts the grant references into the mapping table of an instance
 * of gntdev. N.B. This does not perform the mapping, which is deferred
 * until mmap() is called with @index as the offset.
 */
#define IOCTL_GNTDEV_MAP_GRANT_REF \
_IOC(_IOC_NONE, 'G', 0, sizeof(struct ioctl_gntdev_map_grant_ref))
struct ioctl_gntdev_map_grant_ref {
	/* IN parameters */
	/* The number of grants to be mapped. */
	__u32 count;
	__u32 pad;
	/* OUT parameters */
	/* The offset to be used on a subsequent call to mmap(). */
	__u64 index;
	/* Variable IN parameter. */
	/* Array of grant references, of size @count. */
	struct ioctl_gntdev_grant_ref refs[1];
};

/*
 * Removes the grant references from the mapping table of an instance of
 * of gntdev. N.B. munmap() must be called on the relevant virtual address(es)
 * before this ioctl is called, or an error will result.
 */
#define IOCTL_GNTDEV_UNMAP_GRANT_REF \
_IOC(_IOC_NONE, 'G', 1, sizeof(struct ioctl_gntdev_unmap_grant_ref))
struct ioctl_gntdev_unmap_grant_ref {
	/* IN parameters */
	/* The offset was returned by the corresponding map operation. */
	__u64 index;
	/* The number of pages to be unmapped. */
	__u32 count;
	__u32 pad;
};

/*
 * Returns the offset in the driver's address space that corresponds
 * to @vaddr. This can be used to perform a munmap(), followed by an
 * UNMAP_GRANT_REF ioctl, where no state about the offset is retained by
 * the caller. The number of pages that were allocated at the same time as
 * @vaddr is returned in @count.
 *
 * N.B. Where more than one page has been mapped into a contiguous range, the
 *      supplied @vaddr must correspond to the start of the range; otherwise
 *      an error will result. It is only possible to munmap() the entire
 *      contiguously-allocated range at once, and not any subrange thereof.
 */
#define IOCTL_GNTDEV_GET_OFFSET_FOR_VADDR \
_IOC(_IOC_NONE, 'G', 2, sizeof(struct ioctl_gntdev_get_offset_for_vaddr))
struct ioctl_gntdev_get_offset_for_vaddr {
	/* IN parameters */
	/* The virtual address of the first mapped page in a range. */
	__u64 vaddr;
	/* OUT parameters */
	/* The offset that was used in the initial mmap() operation. */
	__u64 offset;
	/* The number of pages mapped in the VM area that begins at @vaddr. */
	__u32 count;
	__u32 pad;
};

/*
 * Sets the maximum number of grants that may mapped at once by this gntdev
 * instance.
 *
 * N.B. This must be called before any other ioctl is performed on the device.
 */
#define IOCTL_GNTDEV_SET_MAX_GRANTS \
_IOC(_IOC_NONE, 'G', 3, sizeof(struct ioctl_gntdev_set_max_grants))
struct ioctl_gntdev_set_max_grants {
	/* IN parameter */
	/* The maximum number of grants that may be mapped at once. */
	__u32 count;
};

/*
 * Sets up an unmap notification within the page, so that the other side can do
 * cleanup if this side crashes. Required to implement cross-domain robust
 * mutexes or close notification on communication channels.
 *
 * Each mapped page only supports one notification; multiple calls referring to
 * the same page overwrite the previous notification. You must clear the
 * notification prior to the IOCTL_GNTALLOC_DEALLOC_GREF if you do not want it
 * to occur.
 */
#define IOCTL_GNTDEV_SET_UNMAP_NOTIFY \
_IOC(_IOC_NONE, 'G', 7, sizeof(struct ioctl_gntdev_unmap_notify))
struct ioctl_gntdev_unmap_notify {
	/* IN parameters */
	/* Offset in the file descriptor for a byte within the page (same as
	 * used in mmap). If using UNMAP_NOTIFY_CLEAR_BYTE, this is the byte to
	 * be cleared. Otherwise, it can be any byte in the page whose
	 * notification we are adjusting.
	 */
	__u64 index;
	/* Action(s) to take on unmap */
	__u32 action;
	/* Event channel to notify */
	__u32 event_channel_port;
};

struct gntdev_grant_copy_segment {
	union {
		void *virt;
		struct {
			grant_ref_t ref;
			__u16 offset;
			domid_t domid;
		} foreign;
	} source, dest;
	__u16 len;

	__u16 flags;  /* GNTCOPY_* */
	__s16 status; /* GNTST_* */
};

/*
 * Copy between grant references and local buffers.
 *
 * The copy is split into @count @segments, each of which can copy
 * to/from one grant reference.
 *
 * Each segment is similar to struct gnttab_copy in the hypervisor ABI
 * except the local buffer is specified using a virtual address
 * (instead of a GFN and offset).
 *
 * The local buffer may cross a Xen page boundary -- the driver will
 * split segments into multiple ops if required.
 *
 * Returns 0 if all segments have been processed and @status in each
 * segment is valid.  Note that one or more segments may have failed
 * (status != GNTST_okay).
 *
 * If the driver had to split a segment into two or more ops, @status
 * includes the status of the first failed op for that segment (or
 * GNTST_okay if all ops were successful).
 *
 * If -1 is returned, the status of all segments is undefined.
 *
 * EINVAL: A segment has local buffers for both source and
 *         destination.
 * EINVAL: A segment crosses the boundary of a foreign page.
 * EFAULT: A segment's local buffer is not accessible.
 */
#define IOCTL_GNTDEV_GRANT_COPY \
	_IOC(_IOC_NONE, 'G', 8, sizeof(struct ioctl_gntdev_grant_copy))
struct ioctl_gntdev_grant_copy {
	unsigned int count;
	struct gntdev_grant_copy_segment *segments;
};

/* Clear (set to zero) the byte specified by index */
#define UNMAP_NOTIFY_CLEAR_BYTE 0x1
/* Send an interrupt on the indicated event channel */
#define UNMAP_NOTIFY_SEND_EVENT 0x2

#endif /* __LINUX_PUBLIC_GNTDEV_H__ */
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����evtchn.hnu��[�����������/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR MIT) */
/******************************************************************************
 * evtchn.h
 *
 * Interface to /dev/xen/evtchn.
 *
 * Copyright (c) 2003-2005, K A Fraser
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation; or, when distributed
 * separately from the Linux kernel or incorporated into other
 * software packages, subject to the following license:
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this source file (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use, copy, modify,
 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#ifndef __LINUX_PUBLIC_EVTCHN_H__
#define __LINUX_PUBLIC_EVTCHN_H__

/*
 * Bind a fresh port to VIRQ @virq.
 * Return allocated port.
 */
#define IOCTL_EVTCHN_BIND_VIRQ				\
	_IOC(_IOC_NONE, 'E', 0, sizeof(struct ioctl_evtchn_bind_virq))
struct ioctl_evtchn_bind_virq {
	unsigned int virq;
};

/*
 * Bind a fresh port to remote <@remote_domain, @remote_port>.
 * Return allocated port.
 */
#define IOCTL_EVTCHN_BIND_INTERDOMAIN			\
	_IOC(_IOC_NONE, 'E', 1, sizeof(struct ioctl_evtchn_bind_interdomain))
struct ioctl_evtchn_bind_interdomain {
	unsigned int remote_domain, remote_port;
};

/*
 * Allocate a fresh port for binding to @remote_domain.
 * Return allocated port.
 */
#define IOCTL_EVTCHN_BIND_UNBOUND_PORT			\
	_IOC(_IOC_NONE, 'E', 2, sizeof(struct ioctl_evtchn_bind_unbound_port))
struct ioctl_evtchn_bind_unbound_port {
	unsigned int remote_domain;
};

/*
 * Unbind previously allocated @port.
 */
#define IOCTL_EVTCHN_UNBIND				\
	_IOC(_IOC_NONE, 'E', 3, sizeof(struct ioctl_evtchn_unbind))
struct ioctl_evtchn_unbind {
	unsigned int port;
};

/*
 * Unbind previously allocated @port.
 */
#define IOCTL_EVTCHN_NOTIFY				\
	_IOC(_IOC_NONE, 'E', 4, sizeof(struct ioctl_evtchn_notify))
struct ioctl_evtchn_notify {
	unsigned int port;
};

/* Clear and reinitialise the event buffer. Clear error condition. */
#define IOCTL_EVTCHN_RESET				\
	_IOC(_IOC_NONE, 'E', 5, 0)

/*
 * Restrict this file descriptor so that it can only be used to bind
 * new interdomain events from one domain.
 *
 * Once a file descriptor has been restricted it cannot be
 * de-restricted, and must be closed and re-opened.  Event channels
 * which were bound before restricting remain bound afterwards, and
 * can be notified as usual.
 */
#define IOCTL_EVTCHN_RESTRICT_DOMID			\
	_IOC(_IOC_NONE, 'E', 6, sizeof(struct ioctl_evtchn_restrict_domid))
struct ioctl_evtchn_restrict_domid {
	domid_t domid;
};

#endif /* __LINUX_PUBLIC_EVTCHN_H__ */
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