KVM: x86: Clear apic tsc-deadline after deadline
[sfrench/cifs-2.6.git] / virt / kvm / ioapic.h
1 #ifndef __KVM_IO_APIC_H
2 #define __KVM_IO_APIC_H
3
4 #include <linux/kvm_host.h>
5
6 #include "iodev.h"
7
8 struct kvm;
9 struct kvm_vcpu;
10
11 #define IOAPIC_NUM_PINS  KVM_IOAPIC_NUM_PINS
12 #define IOAPIC_VERSION_ID 0x11  /* IOAPIC version */
13 #define IOAPIC_EDGE_TRIG  0
14 #define IOAPIC_LEVEL_TRIG 1
15
16 #define IOAPIC_DEFAULT_BASE_ADDRESS  0xfec00000
17 #define IOAPIC_MEM_LENGTH            0x100
18
19 /* Direct registers. */
20 #define IOAPIC_REG_SELECT  0x00
21 #define IOAPIC_REG_WINDOW  0x10
22 #define IOAPIC_REG_EOI     0x40 /* IA64 IOSAPIC only */
23
24 /* Indirect registers. */
25 #define IOAPIC_REG_APIC_ID 0x00 /* x86 IOAPIC only */
26 #define IOAPIC_REG_VERSION 0x01
27 #define IOAPIC_REG_ARB_ID  0x02 /* x86 IOAPIC only */
28
29 /*ioapic delivery mode*/
30 #define IOAPIC_FIXED                    0x0
31 #define IOAPIC_LOWEST_PRIORITY          0x1
32 #define IOAPIC_PMI                      0x2
33 #define IOAPIC_NMI                      0x4
34 #define IOAPIC_INIT                     0x5
35 #define IOAPIC_EXTINT                   0x7
36
37 #ifdef CONFIG_X86
38 #define RTC_GSI 8
39 #else
40 #define RTC_GSI -1U
41 #endif
42
43 struct rtc_status {
44         int pending_eoi;
45         DECLARE_BITMAP(dest_map, KVM_MAX_VCPUS);
46 };
47
48 struct kvm_ioapic {
49         u64 base_address;
50         u32 ioregsel;
51         u32 id;
52         u32 irr;
53         u32 pad;
54         union kvm_ioapic_redirect_entry redirtbl[IOAPIC_NUM_PINS];
55         unsigned long irq_states[IOAPIC_NUM_PINS];
56         struct kvm_io_device dev;
57         struct kvm *kvm;
58         void (*ack_notifier)(void *opaque, int irq);
59         spinlock_t lock;
60         DECLARE_BITMAP(handled_vectors, 256);
61         struct rtc_status rtc_status;
62 };
63
64 #ifdef DEBUG
65 #define ASSERT(x)                                                       \
66 do {                                                                    \
67         if (!(x)) {                                                     \
68                 printk(KERN_EMERG "assertion failed %s: %d: %s\n",      \
69                        __FILE__, __LINE__, #x);                         \
70                 BUG();                                                  \
71         }                                                               \
72 } while (0)
73 #else
74 #define ASSERT(x) do { } while (0)
75 #endif
76
77 static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
78 {
79         return kvm->arch.vioapic;
80 }
81
82 void kvm_rtc_eoi_tracking_restore_one(struct kvm_vcpu *vcpu);
83 int kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
84                 int short_hand, int dest, int dest_mode);
85 int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2);
86 void kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu, int vector,
87                         int trigger_mode);
88 bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector);
89 int kvm_ioapic_init(struct kvm *kvm);
90 void kvm_ioapic_destroy(struct kvm *kvm);
91 int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int irq_source_id,
92                        int level, bool line_status);
93 void kvm_ioapic_clear_all(struct kvm_ioapic *ioapic, int irq_source_id);
94 int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
95                 struct kvm_lapic_irq *irq, unsigned long *dest_map);
96 int kvm_get_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
97 int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
98 void kvm_vcpu_request_scan_ioapic(struct kvm *kvm);
99 void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap,
100                         u32 *tmr);
101
102 #endif