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
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* QEMU KVM Hyper-V support
*
* Copyright (C) 2015 Andrey Smetanin <asmetanin@virtuozzo.com>
*
* Authors:
* Andrey Smetanin <asmetanin@virtuozzo.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 "qemu/osdep.h"
#include "hyperv.h"
#include "standard-headers/asm-x86/hyperv.h"
int kvm_hv_handle_exit(X86CPU *cpu, struct kvm_hyperv_exit *exit)
{
CPUX86State *env = &cpu->env;
switch (exit->type) {
case KVM_EXIT_HYPERV_SYNIC:
if (!cpu->hyperv_synic) {
return -1;
}
/*
* For now just track changes in SynIC control and msg/evt pages msr's.
* When SynIC messaging/events processing will be added in future
* here we will do messages queues flushing and pages remapping.
*/
switch (exit->u.synic.msr) {
case HV_X64_MSR_SCONTROL:
env->msr_hv_synic_control = exit->u.synic.control;
break;
case HV_X64_MSR_SIMP:
env->msr_hv_synic_msg_page = exit->u.synic.msg_page;
break;
case HV_X64_MSR_SIEFP:
env->msr_hv_synic_evt_page = exit->u.synic.evt_page;
break;
default:
return -1;
}
return 0;
case KVM_EXIT_HYPERV_HCALL: {
uint16_t code;
code = exit->u.hcall.input & 0xffff;
switch (code) {
case HVCALL_POST_MESSAGE:
case HVCALL_SIGNAL_EVENT:
default:
exit->u.hcall.result = HV_STATUS_INVALID_HYPERCALL_CODE;
return 0;
}
}
default:
return -1;
}
}
static void kvm_hv_sint_ack_handler(EventNotifier *notifier)
{
HvSintRoute *sint_route = container_of(notifier, HvSintRoute,
sint_ack_notifier);
event_notifier_test_and_clear(notifier);
if (sint_route->sint_ack_clb) {
sint_route->sint_ack_clb(sint_route);
}
}
HvSintRoute *kvm_hv_sint_route_create(uint32_t vcpu_id, uint32_t sint,
HvSintAckClb sint_ack_clb)
{
HvSintRoute *sint_route;
int r, gsi;
sint_route = g_malloc0(sizeof(*sint_route));
r = event_notifier_init(&sint_route->sint_set_notifier, false);
if (r) {
goto err;
}
r = event_notifier_init(&sint_route->sint_ack_notifier, false);
if (r) {
goto err_sint_set_notifier;
}
event_notifier_set_handler(&sint_route->sint_ack_notifier,
kvm_hv_sint_ack_handler);
gsi = kvm_irqchip_add_hv_sint_route(kvm_state, vcpu_id, sint);
if (gsi < 0) {
goto err_gsi;
}
r = kvm_irqchip_add_irqfd_notifier_gsi(kvm_state,
&sint_route->sint_set_notifier,
&sint_route->sint_ack_notifier, gsi);
if (r) {
goto err_irqfd;
}
sint_route->gsi = gsi;
sint_route->sint_ack_clb = sint_ack_clb;
sint_route->vcpu_id = vcpu_id;
sint_route->sint = sint;
return sint_route;
err_irqfd:
kvm_irqchip_release_virq(kvm_state, gsi);
err_gsi:
event_notifier_set_handler(&sint_route->sint_ack_notifier, NULL);
event_notifier_cleanup(&sint_route->sint_ack_notifier);
err_sint_set_notifier:
event_notifier_cleanup(&sint_route->sint_set_notifier);
err:
g_free(sint_route);
return NULL;
}
void kvm_hv_sint_route_destroy(HvSintRoute *sint_route)
{
kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state,
&sint_route->sint_set_notifier,
sint_route->gsi);
kvm_irqchip_release_virq(kvm_state, sint_route->gsi);
event_notifier_set_handler(&sint_route->sint_ack_notifier, NULL);
event_notifier_cleanup(&sint_route->sint_ack_notifier);
event_notifier_cleanup(&sint_route->sint_set_notifier);
g_free(sint_route);
}
int kvm_hv_sint_route_set_sint(HvSintRoute *sint_route)
{
return event_notifier_set(&sint_route->sint_set_notifier);
}
|
