1*5c4a5fe1SAndy Fiddaman /*-
2*5c4a5fe1SAndy Fiddaman * SPDX-License-Identifier: BSD-2-Clause
3*5c4a5fe1SAndy Fiddaman *
4*5c4a5fe1SAndy Fiddaman * Copyright 2020 Conrad Meyer <cem@FreeBSD.org>. All rights reserved.
5*5c4a5fe1SAndy Fiddaman *
6*5c4a5fe1SAndy Fiddaman * Redistribution and use in source and binary forms, with or without
7*5c4a5fe1SAndy Fiddaman * modification, are permitted provided that the following conditions
8*5c4a5fe1SAndy Fiddaman * are met:
9*5c4a5fe1SAndy Fiddaman * 1. Redistributions of source code must retain the above copyright
10*5c4a5fe1SAndy Fiddaman * notice, this list of conditions and the following disclaimer.
11*5c4a5fe1SAndy Fiddaman * 2. Redistributions in binary form must reproduce the above copyright
12*5c4a5fe1SAndy Fiddaman * notice, this list of conditions and the following disclaimer in the
13*5c4a5fe1SAndy Fiddaman * documentation and/or other materials provided with the distribution.
14*5c4a5fe1SAndy Fiddaman *
15*5c4a5fe1SAndy Fiddaman * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16*5c4a5fe1SAndy Fiddaman * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17*5c4a5fe1SAndy Fiddaman * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18*5c4a5fe1SAndy Fiddaman * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19*5c4a5fe1SAndy Fiddaman * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20*5c4a5fe1SAndy Fiddaman * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21*5c4a5fe1SAndy Fiddaman * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22*5c4a5fe1SAndy Fiddaman * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23*5c4a5fe1SAndy Fiddaman * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24*5c4a5fe1SAndy Fiddaman * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25*5c4a5fe1SAndy Fiddaman * SUCH DAMAGE.
26*5c4a5fe1SAndy Fiddaman */
27*5c4a5fe1SAndy Fiddaman
28*5c4a5fe1SAndy Fiddaman #include <sys/param.h>
29*5c4a5fe1SAndy Fiddaman #include <sys/errno.h>
30*5c4a5fe1SAndy Fiddaman #include <sys/tree.h>
31*5c4a5fe1SAndy Fiddaman
32*5c4a5fe1SAndy Fiddaman #include <machine/vmm.h>
33*5c4a5fe1SAndy Fiddaman #include <x86/include/apicreg.h>
34*5c4a5fe1SAndy Fiddaman struct vm;
35*5c4a5fe1SAndy Fiddaman struct vm_hpet_cap;
36*5c4a5fe1SAndy Fiddaman #include <vmm/io/vioapic.h>
37*5c4a5fe1SAndy Fiddaman #include <vmm/io/vhpet.h>
38*5c4a5fe1SAndy Fiddaman
39*5c4a5fe1SAndy Fiddaman #include <err.h>
40*5c4a5fe1SAndy Fiddaman #include <errno.h>
41*5c4a5fe1SAndy Fiddaman #include <vmmapi.h>
42*5c4a5fe1SAndy Fiddaman
43*5c4a5fe1SAndy Fiddaman #include "kernemu_dev.h"
44*5c4a5fe1SAndy Fiddaman #include "mem.h"
45*5c4a5fe1SAndy Fiddaman
46*5c4a5fe1SAndy Fiddaman static int
apic_handler(struct vcpu * vcpu,int dir,uint64_t addr,int size,uint64_t * val,void * arg1 __unused,long arg2 __unused)47*5c4a5fe1SAndy Fiddaman apic_handler(struct vcpu *vcpu, int dir, uint64_t addr, int size,
48*5c4a5fe1SAndy Fiddaman uint64_t *val, void *arg1 __unused, long arg2 __unused)
49*5c4a5fe1SAndy Fiddaman {
50*5c4a5fe1SAndy Fiddaman if (vm_readwrite_kernemu_device(vcpu, addr, (dir == MEM_F_WRITE),
51*5c4a5fe1SAndy Fiddaman size, val) != 0)
52*5c4a5fe1SAndy Fiddaman return (errno);
53*5c4a5fe1SAndy Fiddaman return (0);
54*5c4a5fe1SAndy Fiddaman }
55*5c4a5fe1SAndy Fiddaman
56*5c4a5fe1SAndy Fiddaman static struct mem_range lapic_mmio = {
57*5c4a5fe1SAndy Fiddaman .name = "kern-lapic-mmio",
58*5c4a5fe1SAndy Fiddaman .base = DEFAULT_APIC_BASE,
59*5c4a5fe1SAndy Fiddaman .size = PAGE_SIZE,
60*5c4a5fe1SAndy Fiddaman .flags = MEM_F_RW | MEM_F_IMMUTABLE,
61*5c4a5fe1SAndy Fiddaman .handler = apic_handler,
62*5c4a5fe1SAndy Fiddaman
63*5c4a5fe1SAndy Fiddaman };
64*5c4a5fe1SAndy Fiddaman static struct mem_range ioapic_mmio = {
65*5c4a5fe1SAndy Fiddaman .name = "kern-ioapic-mmio",
66*5c4a5fe1SAndy Fiddaman .base = VIOAPIC_BASE,
67*5c4a5fe1SAndy Fiddaman .size = VIOAPIC_SIZE,
68*5c4a5fe1SAndy Fiddaman .flags = MEM_F_RW | MEM_F_IMMUTABLE,
69*5c4a5fe1SAndy Fiddaman .handler = apic_handler,
70*5c4a5fe1SAndy Fiddaman };
71*5c4a5fe1SAndy Fiddaman static struct mem_range hpet_mmio = {
72*5c4a5fe1SAndy Fiddaman .name = "kern-hpet-mmio",
73*5c4a5fe1SAndy Fiddaman .base = VHPET_BASE,
74*5c4a5fe1SAndy Fiddaman .size = VHPET_SIZE,
75*5c4a5fe1SAndy Fiddaman .flags = MEM_F_RW | MEM_F_IMMUTABLE,
76*5c4a5fe1SAndy Fiddaman .handler = apic_handler,
77*5c4a5fe1SAndy Fiddaman };
78*5c4a5fe1SAndy Fiddaman
79*5c4a5fe1SAndy Fiddaman void
kernemu_dev_init(void)80*5c4a5fe1SAndy Fiddaman kernemu_dev_init(void)
81*5c4a5fe1SAndy Fiddaman {
82*5c4a5fe1SAndy Fiddaman int rc;
83*5c4a5fe1SAndy Fiddaman
84*5c4a5fe1SAndy Fiddaman rc = register_mem(&lapic_mmio);
85*5c4a5fe1SAndy Fiddaman if (rc != 0)
86*5c4a5fe1SAndy Fiddaman errc(4, rc, "register_mem: LAPIC (0x%08x)",
87*5c4a5fe1SAndy Fiddaman (unsigned)lapic_mmio.base);
88*5c4a5fe1SAndy Fiddaman rc = register_mem(&ioapic_mmio);
89*5c4a5fe1SAndy Fiddaman if (rc != 0)
90*5c4a5fe1SAndy Fiddaman errc(4, rc, "register_mem: IOAPIC (0x%08x)",
91*5c4a5fe1SAndy Fiddaman (unsigned)ioapic_mmio.base);
92*5c4a5fe1SAndy Fiddaman rc = register_mem(&hpet_mmio);
93*5c4a5fe1SAndy Fiddaman if (rc != 0)
94*5c4a5fe1SAndy Fiddaman errc(4, rc, "register_mem: HPET (0x%08x)",
95*5c4a5fe1SAndy Fiddaman (unsigned)hpet_mmio.base);
96*5c4a5fe1SAndy Fiddaman }
97