#ifndef __LINUX_KVM_H #define __LINUX_KVM_H /* * Userspace interface for /dev/kvm - kernel based virtual machine * * Note: you must update KVM_API_VERSION if you change this interface. */ #include #include #define KVM_API_VERSION 12 /* Architectural interrupt line count. */ #define KVM_NR_INTERRUPTS 256 /* for KVM_CREATE_MEMORY_REGION */ struct kvm_memory_region { __u32 slot; __u32 flags; __u64 guest_phys_addr; __u64 memory_size; /* bytes */ }; /* for KVM_SET_USER_MEMORY_REGION */ struct kvm_userspace_memory_region { __u32 slot; __u32 flags; __u64 guest_phys_addr; __u64 memory_size; /* bytes */ __u64 userspace_addr; /* start of the userspace allocated memory */ }; /* for kvm_memory_region::flags */ #define KVM_MEM_LOG_DIRTY_PAGES 1UL struct kvm_memory_alias { __u32 slot; /* this has a different namespace than memory slots */ __u32 flags; __u64 guest_phys_addr; __u64 memory_size; __u64 target_phys_addr; }; /* 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 */ __u8 request_interrupt_window; __u8 padding1[7]; /* out */ __u32 exit_reason; __u8 ready_for_interrupt_injection; __u8 if_flag; __u8 padding2[2]; /* in (pre_kvm_run), out (post_kvm_run) */ __u64 cr8; __u64 apic_base; union { /* KVM_EXIT_UNKNOWN */ struct { __u64 hardware_exit_reason; } hw; /* KVM_EXIT_FAIL_ENTRY */ struct { __u64 hardware_entry_failure_reason; } fail_entry; /* KVM_EXIT_EXCEPTION */ struct { __u32 exception; __u32 error_code; } ex; /* KVM_EXIT_IO */ struct kvm_io { #define KVM_EXIT_IO_IN 0 #define KVM_EXIT_IO_OUT 1 __u8 direction; __u8 size; /* bytes */ __u16 port; __u32 count; __u64 data_offset; /* relative to kvm_run start */ } io; struct { } debug; /* KVM_EXIT_MMIO */ struct { __u64 phys_addr; __u8 data[8]; __u32 len; __u8 is_write; } 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]; }; }; /* for KVM_GET_REGS and KVM_SET_REGS */ struct kvm_regs { /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */ __u64 rax, rbx, rcx, rdx; __u64 rsi, rdi, rsp, rbp; __u64 r8, r9, r10, r11; __u64 r12, r13, r14, r15; __u64 rip, rflags; }; /* for KVM_GET_FPU and KVM_SET_FPU */ struct kvm_fpu { __u8 fpr[8][16]; __u16 fcw; __u16 fsw; __u8 ftwx; /* in fxsave format */ __u8 pad1; __u16 last_opcode; __u64 last_ip; __u64 last_dp; __u8 xmm[16][16]; __u32 mxcsr; __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; __u16 selector; __u8 type; __u8 present, dpl, db, s, l, g, avl; __u8 unusable; __u8 padding; }; struct kvm_dtable { __u64 base; __u16 limit; __u16 padding[3]; }; /* for KVM_GET_SREGS and KVM_SET_SREGS */ struct kvm_sregs { /* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */ struct kvm_segment cs, ds, es, fs, gs, ss; struct kvm_segment tr, ldt; struct kvm_dtable gdt, idt; __u64 cr0, cr2, cr3, cr4, cr8; __u64 efer; __u64 apic_base; __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64]; }; struct kvm_msr_entry { __u32 index; __u32 reserved; __u64 data; }; /* for KVM_GET_MSRS and KVM_SET_MSRS */ struct kvm_msrs { __u32 nmsrs; /* number of msrs in entries */ __u32 pad; struct kvm_msr_entry entries[0]; }; /* for KVM_GET_MSR_INDEX_LIST */ struct kvm_msr_list { __u32 nmsrs; /* number of msrs in entries */ __u32 indices[0]; }; /* for KVM_TRANSLATE */ struct kvm_translation { /* in */ __u64 linear_address; /* out */ __u64 physical_address; __u8 valid; __u8 writeable; __u8 usermode; __u8 pad[5]; }; /* for KVM_INTERRUPT */ struct kvm_interrupt { /* in */ __u32 irq; }; struct kvm_breakpoint { __u32 enabled; __u32 padding; __u64 address; }; /* for KVM_DEBUG_GUEST */ struct kvm_debug_guest { /* int */ __u32 enabled; __u32 pad; struct kvm_breakpoint breakpoints[4]; __u32 singlestep; }; /* for KVM_GET_DIRTY_LOG */ struct kvm_dirty_log { __u32 slot; __u32 padding; union { void __user *dirty_bitmap; /* one bit per page */ __u64 padding; }; }; struct kvm_cpuid_entry { __u32 function; __u32 eax; __u32 ebx; __u32 ecx; __u32 edx; __u32 padding; }; /* for KVM_SET_CPUID */ struct kvm_cpuid { __u32 nent; __u32 padding; struct kvm_cpuid_entry entries[0]; }; /* for KVM_SET_SIGNAL_MASK */ struct kvm_signal_mask { __u32 len; __u8 sigset[0]; }; #define KVMIO 0xAE /* * ioctls for /dev/kvm fds: */ #define KVM_GET_API_VERSION _IO(KVMIO, 0x00) #define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */ #define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list) /* * Check if a kvm extension is available. Argument is extension number, * return is 1 (yes) or 0 (no, sorry). */ #define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03) /* * Get size for mmap(vcpu_fd) */ #define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */ /* * Extension capability list. */ #define KVM_CAP_IRQCHIP 0 #define KVM_CAP_HLT 1 #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2 #define KVM_CAP_USER_MEMORY 3 /* * ioctls for VM fds */ #define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region) #define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44) #define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45) #define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46,\ struct kvm_userspace_memory_region) /* * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns * a vcpu fd. */ #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 */ #define KVM_RUN _IO(KVMIO, 0x80) #define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs) #define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs) #define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs) #define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs) #define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation) #define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt) #define KVM_DEBUG_GUEST _IOW(KVMIO, 0x87, struct kvm_debug_guest) #define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs) #define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs) #define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid) #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