The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/compat/mach/mach_host.c

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    1 /*      $NetBSD: mach_host.c,v 1.31 2008/04/28 20:23:44 martin Exp $ */
    2 
    3 /*-
    4  * Copyright (c) 2002-2003 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Emmanuel Dreyfus
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __KERNEL_RCSID(0, "$NetBSD: mach_host.c,v 1.31 2008/04/28 20:23:44 martin Exp $");
   34 
   35 #include <sys/types.h>
   36 #include <sys/malloc.h>
   37 #include <sys/param.h>
   38 #include <sys/kernel.h>
   39 #include <sys/systm.h>
   40 #include <sys/signal.h>
   41 #include <sys/proc.h>
   42 
   43 #include <uvm/uvm_extern.h>
   44 #include <uvm/uvm_param.h>
   45 
   46 #include <compat/mach/mach_types.h>
   47 #include <compat/mach/mach_host.h>
   48 #include <compat/mach/mach_port.h>
   49 #include <compat/mach/mach_clock.h>
   50 #include <compat/mach/mach_errno.h>
   51 #include <compat/mach/mach_services.h>
   52 
   53 int
   54 mach_host_info(struct mach_trap_args *args)
   55 {
   56         mach_host_info_request_t *req = args->smsg;
   57         mach_host_info_reply_t *rep = args->rmsg;
   58         size_t *msglen = args->rsize;
   59         mach_host_info_reply_simple_t *reps;
   60 
   61         *msglen = sizeof(*rep);
   62         mach_set_header(rep, req, *msglen);
   63 
   64         switch(req->req_flavor) {
   65         case MACH_HOST_BASIC_INFO: {
   66                 struct mach_host_basic_info *info
   67                     = (struct mach_host_basic_info *)&rep->rep_data[0];
   68 
   69                 rep->rep_msgh.msgh_size = sizeof(*reps)
   70                     - sizeof(rep->rep_trailer) + sizeof(*info);
   71                 rep->rep_count = sizeof(*info) / sizeof(mach_integer_t);
   72                 mach_host_basic_info(info);
   73                 break;
   74         }
   75 
   76         case MACH_HOST_PRIORITY_INFO: {
   77                 struct mach_host_priority_info *info
   78                     = (struct mach_host_priority_info *)&rep->rep_data[0];
   79 
   80                 rep->rep_msgh.msgh_size = sizeof(*reps)
   81                     - sizeof(rep->rep_trailer) + sizeof(*info);
   82                 rep->rep_count = sizeof(*info) / sizeof(mach_integer_t);
   83                 mach_host_priority_info(info);
   84                 break;
   85         }
   86 
   87         case MACH_HOST_SEMAPHORE_TRAPS:
   88         case MACH_HOST_MACH_MSG_TRAP:
   89                 reps = (mach_host_info_reply_simple_t *)rep;
   90                 reps->rep_msgh.msgh_size =
   91                     sizeof(*reps) - sizeof(reps->rep_trailer);
   92                 *msglen = sizeof(*reps);
   93                 break;
   94 
   95         case MACH_HOST_SCHED_INFO: {
   96                 struct mach_host_sched_info *info
   97                     = (struct mach_host_sched_info *)&rep->rep_data[0];
   98 
   99                 rep->rep_msgh.msgh_size = sizeof(*reps)
  100                     - sizeof(rep->rep_trailer) + sizeof(*info);
  101                 rep->rep_count = sizeof(*info) / sizeof(mach_integer_t);
  102 
  103                 info->min_timeout = 1000 / hz; /* XXX timout in ms */
  104                 info->min_quantum = 1000 / hz; /* quantum in ms */
  105 
  106                 break;
  107         }
  108 
  109         case MACH_HOST_RESOURCE_SIZES:
  110                 uprintf("mach_host_info() Unimplemented host_info flavor %d\n",
  111                     req->req_flavor);
  112         default:
  113                 uprintf("Unknown host_info flavor %d\n", req->req_flavor);
  114                 rep->rep_retval = native_to_mach_errno[EINVAL];
  115                 break;
  116         }
  117 
  118         mach_set_trailer(rep, *msglen);
  119 
  120         return 0;
  121 }
  122 
  123 
  124 int
  125 mach_host_page_size(struct mach_trap_args *args)
  126 {
  127         mach_host_page_size_request_t *req = args->smsg;
  128         mach_host_page_size_reply_t *rep = args->rmsg;
  129         size_t *msglen = args->rsize;
  130 
  131         *msglen = sizeof(*rep);
  132         mach_set_header(rep, req, *msglen);
  133 
  134         rep->rep_page_size = PAGE_SIZE;
  135 
  136         mach_set_trailer(rep, *msglen);
  137 
  138         return 0;
  139 }
  140 
  141 int
  142 mach_host_get_clock_service(struct mach_trap_args *args)
  143 {
  144         mach_host_get_clock_service_request_t *req = args->smsg;
  145         mach_host_get_clock_service_reply_t *rep = args->rmsg;
  146         size_t *msglen = args->rsize;
  147         struct lwp *l = args->l;
  148         struct mach_right *mr;
  149 
  150         mr = mach_right_get(mach_clock_port, l, MACH_PORT_TYPE_SEND, 0);
  151 
  152         *msglen = sizeof(*rep);
  153         mach_set_header(rep, req, *msglen);
  154         mach_add_port_desc(rep, mr->mr_name);
  155         mach_set_trailer(rep, *msglen);
  156 
  157         return 0;
  158 }
  159 
  160 void
  161 mach_host_priority_info(struct mach_host_priority_info *info)
  162 {
  163         /* XXX One day, try to fill this correctly */
  164         info->kernel_priority = 0x50;
  165         info->system_priority = 0x50;
  166         info->server_priority = 0x40;
  167         info->user_priority = 0x1f;
  168         info->depress_priority = 0x00;
  169         info->idle_priority = 0x00;
  170         info->minimum_priority = 0x00;
  171         info->maximum_priority = 0x4f;
  172 
  173         return;
  174 }
  175 
  176 int
  177 mach_host_get_io_master(struct mach_trap_args *args)
  178 {
  179         mach_host_get_io_master_request_t *req = args->smsg;
  180         mach_host_get_io_master_reply_t *rep = args->rmsg;
  181         size_t *msglen = args->rsize;
  182         struct lwp *l = args->l;
  183         struct mach_right *mr;
  184 
  185         mr = mach_right_get(mach_io_master_port, l, MACH_PORT_TYPE_SEND, 0);
  186 
  187         *msglen = sizeof(*rep);
  188         mach_set_header(rep, req, *msglen);
  189         mach_add_port_desc(rep, mr->mr_name);
  190         mach_set_trailer(rep, *msglen);
  191 
  192         return 0;
  193 }
  194 
  195 int
  196 mach_processor_set_default(struct mach_trap_args *args)
  197 {
  198         mach_processor_set_default_request_t *req = args->smsg;
  199         mach_processor_set_default_reply_t *rep = args->rmsg;
  200         size_t *msglen = args->rsize;
  201         struct lwp *l = args->l;
  202         struct mach_right *mr;
  203         struct mach_port *mp;
  204 
  205         mp = mach_port_get();
  206         mr = mach_right_get(mp, l, MACH_PORT_TYPE_SEND, 0);
  207 
  208         *msglen = sizeof(*rep);
  209         mach_set_header(rep, req, *msglen);
  210         mach_add_port_desc(rep, mr->mr_name);
  211         mach_set_trailer(rep, *msglen);
  212 
  213         return 0;
  214 }
  215 
  216 int
  217 mach_host_processor_set_priv(struct mach_trap_args *args)
  218 {
  219         mach_host_processor_set_priv_request_t *req = args->smsg;
  220         mach_host_processor_set_priv_reply_t *rep = args->rmsg;
  221         size_t *msglen = args->rsize;
  222         struct lwp *l = args->l;
  223         mach_port_t mn;
  224         struct mach_right *mr;
  225         struct mach_right *smr;
  226         struct mach_port *smp;
  227 
  228         mn = req->req_set.name;
  229         if ((mr = mach_right_check(mn, l, MACH_PORT_TYPE_ALL_RIGHTS)) == NULL)
  230                 return mach_msg_error(args, EINVAL);
  231 
  232         smp = mach_port_get();
  233         smr = mach_right_get(smp, l, MACH_PORT_TYPE_SEND, 0);
  234 
  235         *msglen = sizeof(*rep);
  236         mach_set_header(rep, req, *msglen);
  237         mach_add_port_desc(rep, smr->mr_name);
  238         mach_set_trailer(rep, *msglen);
  239 
  240         return 0;
  241 }

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