FreeBSD/Linux Kernel Cross Reference
sys/xen/privcmd.h

     /******************************************************************************
      * 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.
     *
     * $FreeBSD$
     */
    
    #ifndef __XEN_PRIVCMD_H__
    #define __XEN_PRIVCMD_H__
    
    struct ioctl_privcmd_hypercall
    {
            unsigned long op; /* hypercall number */
            unsigned long arg[5]; /* arguments */
            long retval; /* return value */
    };
    
    struct ioctl_privcmd_mmapbatch {
            int num;     /* number of pages to populate */
            domid_t dom; /* target domain */
            unsigned long addr;  /* virtual address */
            const xen_pfn_t *arr; /* array of mfns */
            int *err; /* array of error codes */
    };
    
    struct ioctl_privcmd_mmapresource {
            domid_t dom; /* target domain */
            unsigned int type; /* type of resource to map */
            unsigned int id; /* type-specific resource identifier */
            unsigned int idx; /* the index of the initial frame to be mapped */
            unsigned long num; /* number of frames of the resource to be mapped */
            unsigned long addr; /* physical address to map into */
            /*
             * Note: issuing an ioctl with num = addr = 0 will return the size of
             * the resource.
             */
    };
    
    struct privcmd_dmop_buf {
            void *uptr; /* pointer to memory (in calling process) */
            size_t size; /* size of the buffer */
    };
    
    struct ioctl_privcmd_dmop {
            domid_t dom; /* target domain */
            unsigned int num; /* num of buffers */
            const struct privcmd_dmop_buf *ubufs; /* array of buffers */
    };
    
    #define IOCTL_PRIVCMD_HYPERCALL                                 \
            _IOWR('E', 0, struct ioctl_privcmd_hypercall)
    #define IOCTL_PRIVCMD_MMAPBATCH                                 \
            _IOWR('E', 1, struct ioctl_privcmd_mmapbatch)
    #define IOCTL_PRIVCMD_MMAP_RESOURCE                             \
            _IOWR('E', 2, struct ioctl_privcmd_mmapresource)
    #define IOCTL_PRIVCMD_DM_OP                                     \
            _IOW('E', 3, struct ioctl_privcmd_dmop)
    #define IOCTL_PRIVCMD_RESTRICT                                  \
            _IOW('E', 4, domid_t)
    
    #endif /* !__XEN_PRIVCMD_H__ */

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