diff options
Diffstat (limited to 'include/linux/kvm.h')
| -rw-r--r-- | include/linux/kvm.h | 128 |
1 files changed, 106 insertions, 22 deletions
diff --git a/include/linux/kvm.h b/include/linux/kvm.h index e6edca81ab8..057a7f34ee3 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -4,8 +4,7 @@ /* * Userspace interface for /dev/kvm - kernel based virtual machine * - * Note: this interface is considered experimental and may change without - * notice. + * Note: you must update KVM_API_VERSION if you change this interface. */ #include <asm/types.h> @@ -13,14 +12,8 @@ #define KVM_API_VERSION 12 -/* - * Architectural interrupt line count, and the size of the bitmap needed - * to hold them. - */ +/* Architectural interrupt line count. */ #define KVM_NR_INTERRUPTS 256 -#define KVM_IRQ_BITMAP_SIZE_BYTES ((KVM_NR_INTERRUPTS + 7) / 8) -#define KVM_IRQ_BITMAP_SIZE(type) (KVM_IRQ_BITMAP_SIZE_BYTES / sizeof(type)) - /* for KVM_CREATE_MEMORY_REGION */ struct kvm_memory_region { @@ -41,20 +34,89 @@ struct kvm_memory_alias { __u64 target_phys_addr; }; -enum kvm_exit_reason { - KVM_EXIT_UNKNOWN = 0, - KVM_EXIT_EXCEPTION = 1, - KVM_EXIT_IO = 2, - KVM_EXIT_HYPERCALL = 3, - KVM_EXIT_DEBUG = 4, - KVM_EXIT_HLT = 5, - KVM_EXIT_MMIO = 6, - KVM_EXIT_IRQ_WINDOW_OPEN = 7, - KVM_EXIT_SHUTDOWN = 8, - KVM_EXIT_FAIL_ENTRY = 9, - KVM_EXIT_INTR = 10, +/* for KVM_IRQ_LINE */ +struct kvm_irq_level { + /* + * ACPI gsi notion of irq. + * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47.. + * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23.. + */ + __u32 irq; + __u32 level; +}; + +/* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */ +struct kvm_pic_state { + __u8 last_irr; /* edge detection */ + __u8 irr; /* interrupt request register */ + __u8 imr; /* interrupt mask register */ + __u8 isr; /* interrupt service register */ + __u8 priority_add; /* highest irq priority */ + __u8 irq_base; + __u8 read_reg_select; + __u8 poll; + __u8 special_mask; + __u8 init_state; + __u8 auto_eoi; + __u8 rotate_on_auto_eoi; + __u8 special_fully_nested_mode; + __u8 init4; /* true if 4 byte init */ + __u8 elcr; /* PIIX edge/trigger selection */ + __u8 elcr_mask; +}; + +#define KVM_IOAPIC_NUM_PINS 24 +struct kvm_ioapic_state { + __u64 base_address; + __u32 ioregsel; + __u32 id; + __u32 irr; + __u32 pad; + union { + __u64 bits; + struct { + __u8 vector; + __u8 delivery_mode:3; + __u8 dest_mode:1; + __u8 delivery_status:1; + __u8 polarity:1; + __u8 remote_irr:1; + __u8 trig_mode:1; + __u8 mask:1; + __u8 reserve:7; + __u8 reserved[4]; + __u8 dest_id; + } fields; + } redirtbl[KVM_IOAPIC_NUM_PINS]; }; +#define KVM_IRQCHIP_PIC_MASTER 0 +#define KVM_IRQCHIP_PIC_SLAVE 1 +#define KVM_IRQCHIP_IOAPIC 2 + +struct kvm_irqchip { + __u32 chip_id; + __u32 pad; + union { + char dummy[512]; /* reserving space */ + struct kvm_pic_state pic; + struct kvm_ioapic_state ioapic; + } chip; +}; + +#define KVM_EXIT_UNKNOWN 0 +#define KVM_EXIT_EXCEPTION 1 +#define KVM_EXIT_IO 2 +#define KVM_EXIT_HYPERCALL 3 +#define KVM_EXIT_DEBUG 4 +#define KVM_EXIT_HLT 5 +#define KVM_EXIT_MMIO 6 +#define KVM_EXIT_IRQ_WINDOW_OPEN 7 +#define KVM_EXIT_SHUTDOWN 8 +#define KVM_EXIT_FAIL_ENTRY 9 +#define KVM_EXIT_INTR 10 +#define KVM_EXIT_SET_TPR 11 + /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */ struct kvm_run { /* in */ @@ -106,11 +168,14 @@ struct kvm_run { } mmio; /* KVM_EXIT_HYPERCALL */ struct { + __u64 nr; __u64 args[6]; __u64 ret; __u32 longmode; __u32 pad; } hypercall; + /* Fix the size of the union. */ + char padding[256]; }; }; @@ -139,6 +204,12 @@ struct kvm_fpu { __u32 pad2; }; +/* for KVM_GET_LAPIC and KVM_SET_LAPIC */ +#define KVM_APIC_REG_SIZE 0x400 +struct kvm_lapic_state { + char regs[KVM_APIC_REG_SIZE]; +}; + struct kvm_segment { __u64 base; __u32 limit; @@ -164,7 +235,7 @@ struct kvm_sregs { __u64 cr0, cr2, cr3, cr4, cr8; __u64 efer; __u64 apic_base; - __u64 interrupt_bitmap[KVM_IRQ_BITMAP_SIZE(__u64)]; + __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64]; }; struct kvm_msr_entry { @@ -272,6 +343,12 @@ struct kvm_signal_mask { #define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */ /* + * Extension capability list. + */ +#define KVM_CAP_IRQCHIP 0 +#define KVM_CAP_HLT 1 + +/* * ioctls for VM fds */ #define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region) @@ -282,6 +359,11 @@ struct kvm_signal_mask { #define KVM_CREATE_VCPU _IO(KVMIO, 0x41) #define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log) #define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias) +/* Device model IOC */ +#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60) +#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level) +#define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip) +#define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip) /* * ioctls for vcpu fds @@ -300,5 +382,7 @@ struct kvm_signal_mask { #define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask) #define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu) #define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu) +#define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state) +#define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state) #endif |