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/i386/xen/mptable.c

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    1 /*-
    2  * Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org>
    3  * Copyright (c) 1996, by Steve Passe
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. The name of the developer may NOT be used to endorse or promote products
   12  *    derived from this software without specific prior written permission.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: releng/8.3/sys/i386/xen/mptable.c 199583 2009-11-20 15:27:52Z jhb $");
   29 
   30 #include <sys/param.h>
   31 #include <sys/systm.h>
   32 #include <sys/bus.h>
   33 #include <sys/kernel.h>
   34 #include <sys/malloc.h>
   35 
   36 #include <vm/vm.h>
   37 #include <vm/vm_param.h>
   38 #include <vm/pmap.h>
   39 
   40 #include <machine/apicreg.h>
   41 #include <machine/frame.h>
   42 #include <machine/intr_machdep.h>
   43 #include <machine/apicvar.h>
   44 #include <machine/md_var.h>
   45 #include <machine/mptable.h>
   46 #include <machine/specialreg.h>
   47 
   48 #include <xen/hypervisor.h>
   49 #include <machine/xen/xen-os.h>
   50 #include <machine/smp.h>
   51 #include <xen/interface/vcpu.h>
   52 
   53 
   54 static int      mptable_probe(void);
   55 static int      mptable_probe_cpus(void);
   56 static void     mptable_register(void *dummy);
   57 static int      mptable_setup_local(void);
   58 static int      mptable_setup_io(void);
   59 
   60 static struct apic_enumerator mptable_enumerator = {
   61         "MPTable",
   62         mptable_probe,
   63         mptable_probe_cpus,
   64         mptable_setup_local,
   65         mptable_setup_io
   66 };
   67 
   68 static int
   69 mptable_probe(void)
   70 {
   71 
   72         return (-100);
   73 }
   74 
   75 static int
   76 mptable_probe_cpus(void)
   77 {
   78         int i, rc;
   79 
   80         for (i = 0; i < MAXCPU; i++) {
   81                 rc = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
   82                 if (rc >= 0)
   83                         cpu_add(i, (i == 0));
   84         }
   85 
   86         return (0);
   87 }
   88 
   89 /*
   90  * Initialize the local APIC on the BSP.
   91  */
   92 static int
   93 mptable_setup_local(void)
   94 {
   95 
   96         return (0);
   97 }
   98 
   99 static int
  100 mptable_setup_io(void)
  101 {
  102 
  103         return (0);
  104 }
  105 
  106 static void
  107 mptable_register(void *dummy __unused)
  108 {
  109 
  110         apic_register_enumerator(&mptable_enumerator);
  111 }
  112 SYSINIT(mptable_register, SI_SUB_CPU - 1, SI_ORDER_FIRST, mptable_register,
  113     NULL);
  114 
  115 
  116 
  117 int
  118 mptable_pci_probe_table(int bus)
  119 {
  120 
  121         return (0);
  122 }
  123 
  124 int
  125 mptable_pci_route_interrupt(device_t pcib, device_t dev, int pin)
  126 {
  127 
  128         return (0);
  129 }
  130 

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