FreeBSD/Linux Kernel Cross Reference
sys/i386/xen/mptable.c
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("$FreeBSD$");
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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