| Zhang Xiantao | 8247019 | 2007-12-17 13:59:56 +0800 | [diff] [blame] | 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 | struct kvm_ioapic { |
| 38 | u64 base_address; |
| 39 | u32 ioregsel; |
| 40 | u32 id; |
| 41 | u32 irr; |
| 42 | u32 pad; |
| 43 | union ioapic_redir_entry { |
| 44 | u64 bits; |
| 45 | struct { |
| 46 | u8 vector; |
| 47 | u8 delivery_mode:3; |
| 48 | u8 dest_mode:1; |
| 49 | u8 delivery_status:1; |
| 50 | u8 polarity:1; |
| 51 | u8 remote_irr:1; |
| 52 | u8 trig_mode:1; |
| 53 | u8 mask:1; |
| 54 | u8 reserve:7; |
| 55 | u8 reserved[4]; |
| 56 | u8 dest_id; |
| 57 | } fields; |
| 58 | } redirtbl[IOAPIC_NUM_PINS]; |
| 59 | struct kvm_io_device dev; |
| 60 | struct kvm *kvm; |
| 61 | }; |
| 62 | |
| 63 | #ifdef DEBUG |
| 64 | #define ASSERT(x) \ |
| 65 | do { \ |
| 66 | if (!(x)) { \ |
| 67 | printk(KERN_EMERG "assertion failed %s: %d: %s\n", \ |
| 68 | __FILE__, __LINE__, #x); \ |
| 69 | BUG(); \ |
| 70 | } \ |
| 71 | } while (0) |
| 72 | #else |
| 73 | #define ASSERT(x) do { } while (0) |
| 74 | #endif |
| 75 | |
| 76 | static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm) |
| 77 | { |
| 78 | return kvm->arch.vioapic; |
| 79 | } |
| 80 | |
| 81 | #ifdef CONFIG_IA64 |
| 82 | static inline int irqchip_in_kernel(struct kvm *kvm) |
| 83 | { |
| 84 | return 1; |
| 85 | } |
| 86 | #endif |
| 87 | |
| 88 | struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector, |
| 89 | unsigned long bitmap); |
| 90 | void kvm_ioapic_update_eoi(struct kvm *kvm, int vector); |
| 91 | int kvm_ioapic_init(struct kvm *kvm); |
| 92 | void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level); |
| 93 | void kvm_ioapic_reset(struct kvm_ioapic *ioapic); |
| 94 | |
| 95 | #endif |