1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/*
* Xen basic APIC support
*
* Copyright (c) 2012 Citrix
*
* Authors:
* Wei Liu <wei.liu2@citrix.com>
*
* This work is licensed under the terms of the GNU GPL version 2 or
* later. See the COPYING file in the top-level directory.
*/
#include "hw/apic_internal.h"
#include "hw/msi.h"
#include "xen.h"
static uint64_t xen_apic_mem_read(void *opaque, target_phys_addr_t addr,
unsigned size)
{
return ~(uint64_t)0;
}
static void xen_apic_mem_write(void *opaque, target_phys_addr_t addr,
uint64_t data, unsigned size)
{
if (size != sizeof(uint32_t)) {
fprintf(stderr, "Xen: APIC write data size = %d, invalid\n", size);
return;
}
xen_hvm_inject_msi(addr, data);
}
static const MemoryRegionOps xen_apic_io_ops = {
.read = xen_apic_mem_read,
.write = xen_apic_mem_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void xen_apic_init(APICCommonState *s)
{
memory_region_init_io(&s->io_memory, &xen_apic_io_ops, s, "xen-apic-msi",
MSI_SPACE_SIZE);
#if defined(CONFIG_XEN_CTRL_INTERFACE_VERSION) \
&& CONFIG_XEN_CTRL_INTERFACE_VERSION >= 420
msi_supported = true;
#endif
}
static void xen_apic_set_base(APICCommonState *s, uint64_t val)
{
}
static void xen_apic_set_tpr(APICCommonState *s, uint8_t val)
{
}
static uint8_t xen_apic_get_tpr(APICCommonState *s)
{
return 0;
}
static void xen_apic_vapic_base_update(APICCommonState *s)
{
}
static void xen_apic_external_nmi(APICCommonState *s)
{
}
static void xen_apic_class_init(ObjectClass *klass, void *data)
{
APICCommonClass *k = APIC_COMMON_CLASS(klass);
k->init = xen_apic_init;
k->set_base = xen_apic_set_base;
k->set_tpr = xen_apic_set_tpr;
k->get_tpr = xen_apic_get_tpr;
k->vapic_base_update = xen_apic_vapic_base_update;
k->external_nmi = xen_apic_external_nmi;
}
static TypeInfo xen_apic_info = {
.name = "xen-apic",
.parent = TYPE_APIC_COMMON,
.instance_size = sizeof(APICCommonState),
.class_init = xen_apic_class_init,
};
static void xen_apic_register_types(void)
{
type_register_static(&xen_apic_info);
}
type_init(xen_apic_register_types)
|
