arch/x86/include/asm/kvm.h

   1 #ifndef _ASM_X86_KVM_H
   2 #define _ASM_X86_KVM_H
   3
   4 /*
   5  * KVM x86 specific structures and definitions
   6  *
   7  */
   8
   9 #include <linux/types.h>
  10 #include <linux/ioctl.h>
  11
  12 /* Select x86 specific features in <linux/kvm.h> */
  13 #define __KVM_HAVE_PIT
  14 #define __KVM_HAVE_IOAPIC
  15 #define __KVM_HAVE_DEVICE_ASSIGNMENT
  16 #define __KVM_HAVE_MSI
  17 #define __KVM_HAVE_USER_NMI
  18 #define __KVM_HAVE_GUEST_DEBUG
  19 #define __KVM_HAVE_MSIX
  20 #define __KVM_HAVE_MCE
  21 #define __KVM_HAVE_PIT_STATE2
  22
  23 /* Architectural interrupt line count. */
  24 #define KVM_NR_INTERRUPTS 256
  25
  26 struct kvm_memory_alias {
  27         __u32 slot;  /* this has a different namespace than memory slots */
  28         __u32 flags;
  29         __u64 guest_phys_addr;
  30         __u64 memory_size;
  31         __u64 target_phys_addr;
  32 };
  33
  34 /* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */
  35 struct kvm_pic_state {
  36         __u8 last_irr;  /* edge detection */
  37         __u8 irr;               /* interrupt request register */
  38         __u8 imr;               /* interrupt mask register */
  39         __u8 isr;               /* interrupt service register */
  40         __u8 priority_add;      /* highest irq priority */
  41         __u8 irq_base;
  42         __u8 read_reg_select;
  43         __u8 poll;
  44         __u8 special_mask;
  45         __u8 init_state;
  46         __u8 auto_eoi;
  47         __u8 rotate_on_auto_eoi;
  48         __u8 special_fully_nested_mode;
  49         __u8 init4;             /* true if 4 byte init */
  50         __u8 elcr;              /* PIIX edge/trigger selection */
  51         __u8 elcr_mask;
  52 };
  53
  54 #define KVM_IOAPIC_NUM_PINS  24
  55 struct kvm_ioapic_state {
  56         __u64 base_address;
  57         __u32 ioregsel;
  58         __u32 id;
  59         __u32 irr;
  60         __u32 pad;
  61         union {
  62                 __u64 bits;
  63                 struct {
  64                         __u8 vector;
  65                         __u8 delivery_mode:3;
  66                         __u8 dest_mode:1;
  67                         __u8 delivery_status:1;
  68                         __u8 polarity:1;
  69                         __u8 remote_irr:1;
  70                         __u8 trig_mode:1;
  71                         __u8 mask:1;
  72                         __u8 reserve:7;
  73                         __u8 reserved[4];
  74                         __u8 dest_id;
  75                 } fields;
  76         } redirtbl[KVM_IOAPIC_NUM_PINS];
  77 };
  78
  79 #define KVM_IRQCHIP_PIC_MASTER   0
  80 #define KVM_IRQCHIP_PIC_SLAVE    1
  81 #define KVM_IRQCHIP_IOAPIC       2
  82
  83 /* for KVM_GET_REGS and KVM_SET_REGS */
  84 struct kvm_regs {
  85         /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */
  86         __u64 rax, rbx, rcx, rdx;
  87         __u64 rsi, rdi, rsp, rbp;
  88         __u64 r8,  r9,  r10, r11;
  89         __u64 r12, r13, r14, r15;
  90         __u64 rip, rflags;
  91 };
  92
  93 /* for KVM_GET_LAPIC and KVM_SET_LAPIC */
  94 #define KVM_APIC_REG_SIZE 0x400
  95 struct kvm_lapic_state {
  96         char regs[KVM_APIC_REG_SIZE];
  97 };
  98
  99 struct kvm_segment {
 100         __u64 base;
 101         __u32 limit;
 102         __u16 selector;
 103         __u8  type;
 104         __u8  present, dpl, db, s, l, g, avl;
 105         __u8  unusable;
 106         __u8  padding;
 107 };
 108
 109 struct kvm_dtable {
 110         __u64 base;
 111         __u16 limit;
 112         __u16 padding[3];
 113 };
 114
 115
 116 /* for KVM_GET_SREGS and KVM_SET_SREGS */
 117 struct kvm_sregs {
 118         /* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */
 119         struct kvm_segment cs, ds, es, fs, gs, ss;
 120         struct kvm_segment tr, ldt;
 121         struct kvm_dtable gdt, idt;
 122         __u64 cr0, cr2, cr3, cr4, cr8;
 123         __u64 efer;
 124         __u64 apic_base;
 125         __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64];
 126 };
 127
 128 /* for KVM_GET_FPU and KVM_SET_FPU */
 129 struct kvm_fpu {
 130         __u8  fpr[8][16];
 131         __u16 fcw;
 132         __u16 fsw;
 133         __u8  ftwx;  /* in fxsave format */
 134         __u8  pad1;
 135         __u16 last_opcode;
 136         __u64 last_ip;
 137         __u64 last_dp;
 138         __u8  xmm[16][16];
 139         __u32 mxcsr;
 140         __u32 pad2;
 141 };
 142
 143 struct kvm_msr_entry {
 144         __u32 index;
 145         __u32 reserved;
 146         __u64 data;
 147 };
 148
 149 /* for KVM_GET_MSRS and KVM_SET_MSRS */
 150 struct kvm_msrs {
 151         __u32 nmsrs; /* number of msrs in entries */
 152         __u32 pad;
 153
 154         struct kvm_msr_entry entries[0];
 155 };
 156
 157 /* for KVM_GET_MSR_INDEX_LIST */
 158 struct kvm_msr_list {
 159         __u32 nmsrs; /* number of msrs in entries */
 160         __u32 indices[0];
 161 };
 162
 163
 164 struct kvm_cpuid_entry {
 165         __u32 function;
 166         __u32 eax;
 167         __u32 ebx;
 168         __u32 ecx;
 169         __u32 edx;
 170         __u32 padding;
 171 };
 172
 173 /* for KVM_SET_CPUID */
 174 struct kvm_cpuid {
 175         __u32 nent;
 176         __u32 padding;
 177         struct kvm_cpuid_entry entries[0];
 178 };
 179
 180 struct kvm_cpuid_entry2 {
 181         __u32 function;
 182         __u32 index;
 183         __u32 flags;
 184         __u32 eax;
 185         __u32 ebx;
 186         __u32 ecx;
 187         __u32 edx;
 188         __u32 padding[3];
 189 };
 190
 191 #define KVM_CPUID_FLAG_SIGNIFCANT_INDEX 1
 192 #define KVM_CPUID_FLAG_STATEFUL_FUNC    2
 193 #define KVM_CPUID_FLAG_STATE_READ_NEXT  4
 194
 195 /* for KVM_SET_CPUID2 */
 196 struct kvm_cpuid2 {
 197         __u32 nent;
 198         __u32 padding;
 199         struct kvm_cpuid_entry2 entries[0];
 200 };
 201
 202 /* for KVM_GET_PIT and KVM_SET_PIT */
 203 struct kvm_pit_channel_state {
 204         __u32 count; /* can be 65536 */
 205         __u16 latched_count;
 206         __u8 count_latched;
 207         __u8 status_latched;
 208         __u8 status;
 209         __u8 read_state;
 210         __u8 write_state;
 211         __u8 write_latch;
 212         __u8 rw_mode;
 213         __u8 mode;
 214         __u8 bcd;
 215         __u8 gate;
 216         __s64 count_load_time;
 217 };
 218
 219 struct kvm_debug_exit_arch {
 220         __u32 exception;
 221         __u32 pad;
 222         __u64 pc;
 223         __u64 dr6;
 224         __u64 dr7;
 225 };
 226
 227 #define KVM_GUESTDBG_USE_SW_BP          0x00010000
 228 #define KVM_GUESTDBG_USE_HW_BP          0x00020000
 229 #define KVM_GUESTDBG_INJECT_DB          0x00040000
 230 #define KVM_GUESTDBG_INJECT_BP          0x00080000
 231
 232 /* for KVM_SET_GUEST_DEBUG */
 233 struct kvm_guest_debug_arch {
 234         __u64 debugreg[8];
 235 };
 236
 237 struct kvm_pit_state {
 238         struct kvm_pit_channel_state channels[3];
 239 };
 240
 241 #define KVM_PIT_FLAGS_HPET_LEGACY  0x00000001
 242
 243 struct kvm_pit_state2 {
 244         struct kvm_pit_channel_state channels[3];
 245         __u32 flags;
 246         __u32 reserved[9];
 247 };
 248
 249 struct kvm_reinject_control {
 250         __u8 pit_reinject;
 251         __u8 reserved[31];
 252 };
 253 #endif /* _ASM_X86_KVM_H */