diff options
Diffstat (limited to 'drivers/kvm/irq.c')
-rw-r--r-- | drivers/kvm/irq.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/drivers/kvm/irq.c b/drivers/kvm/irq.c deleted file mode 100644 index 59b47c55fc76..000000000000 --- a/drivers/kvm/irq.c +++ /dev/null | |||
@@ -1,99 +0,0 @@ | |||
1 | /* | ||
2 | * irq.c: API for in kernel interrupt controller | ||
3 | * Copyright (c) 2007, Intel Corporation. | ||
4 | * | ||
5 | * This program is free software; you can redistribute it and/or modify it | ||
6 | * under the terms and conditions of the GNU General Public License, | ||
7 | * version 2, as published by the Free Software Foundation. | ||
8 | * | ||
9 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
12 | * more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License along with | ||
15 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | ||
16 | * Place - Suite 330, Boston, MA 02111-1307 USA. | ||
17 | * Authors: | ||
18 | * Yaozu (Eddie) Dong <Eddie.dong@intel.com> | ||
19 | * | ||
20 | */ | ||
21 | |||
22 | #include <linux/module.h> | ||
23 | |||
24 | #include "kvm.h" | ||
25 | #include "x86.h" | ||
26 | #include "irq.h" | ||
27 | |||
28 | /* | ||
29 | * check if there is pending interrupt without | ||
30 | * intack. | ||
31 | */ | ||
32 | int kvm_cpu_has_interrupt(struct kvm_vcpu *v) | ||
33 | { | ||
34 | struct kvm_pic *s; | ||
35 | |||
36 | if (kvm_apic_has_interrupt(v) == -1) { /* LAPIC */ | ||
37 | if (kvm_apic_accept_pic_intr(v)) { | ||
38 | s = pic_irqchip(v->kvm); /* PIC */ | ||
39 | return s->output; | ||
40 | } else | ||
41 | return 0; | ||
42 | } | ||
43 | return 1; | ||
44 | } | ||
45 | EXPORT_SYMBOL_GPL(kvm_cpu_has_interrupt); | ||
46 | |||
47 | /* | ||
48 | * Read pending interrupt vector and intack. | ||
49 | */ | ||
50 | int kvm_cpu_get_interrupt(struct kvm_vcpu *v) | ||
51 | { | ||
52 | struct kvm_pic *s; | ||
53 | int vector; | ||
54 | |||
55 | vector = kvm_get_apic_interrupt(v); /* APIC */ | ||
56 | if (vector == -1) { | ||
57 | if (kvm_apic_accept_pic_intr(v)) { | ||
58 | s = pic_irqchip(v->kvm); | ||
59 | s->output = 0; /* PIC */ | ||
60 | vector = kvm_pic_read_irq(s); | ||
61 | } | ||
62 | } | ||
63 | return vector; | ||
64 | } | ||
65 | EXPORT_SYMBOL_GPL(kvm_cpu_get_interrupt); | ||
66 | |||
67 | static void vcpu_kick_intr(void *info) | ||
68 | { | ||
69 | #ifdef DEBUG | ||
70 | struct kvm_vcpu *vcpu = (struct kvm_vcpu *)info; | ||
71 | printk(KERN_DEBUG "vcpu_kick_intr %p \n", vcpu); | ||
72 | #endif | ||
73 | } | ||
74 | |||
75 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu) | ||
76 | { | ||
77 | int ipi_pcpu = vcpu->cpu; | ||
78 | |||
79 | if (waitqueue_active(&vcpu->wq)) { | ||
80 | wake_up_interruptible(&vcpu->wq); | ||
81 | ++vcpu->stat.halt_wakeup; | ||
82 | } | ||
83 | if (vcpu->guest_mode) | ||
84 | smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0, 0); | ||
85 | } | ||
86 | |||
87 | void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu) | ||
88 | { | ||
89 | kvm_inject_apic_timer_irqs(vcpu); | ||
90 | /* TODO: PIT, RTC etc. */ | ||
91 | } | ||
92 | EXPORT_SYMBOL_GPL(kvm_inject_pending_timer_irqs); | ||
93 | |||
94 | void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec) | ||
95 | { | ||
96 | kvm_apic_timer_intr_post(vcpu, vec); | ||
97 | /* TODO: PIT, RTC etc. */ | ||
98 | } | ||
99 | EXPORT_SYMBOL_GPL(kvm_timer_intr_post); | ||