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 #define __KVM_HAVE_XEN_HVM
  23 #define __KVM_HAVE_VCPU_EVENTS
  24 #define __KVM_HAVE_DEBUGREGS
  25 #define __KVM_HAVE_XSAVE
  26 #define __KVM_HAVE_XCRS
  27
  28 /* Architectural interrupt line count. */
  29 #define KVM_NR_INTERRUPTS 256
  30
  31 struct kvm_memory_alias {
  32         __u32 slot;  /* this has a different namespace than memory slots */
  33         __u32 flags;
  34         __u64 guest_phys_addr;
  35         __u64 memory_size;
  36         __u64 target_phys_addr;
  37 };
  38
  39 /* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */
  40 struct kvm_pic_state {
  41         __u8 last_irr;  /* edge detection */
  42         __u8 irr;               /* interrupt request register */
  43         __u8 imr;               /* interrupt mask register */
  44         __u8 isr;               /* interrupt service register */
  45         __u8 priority_add;      /* highest irq priority */
  46         __u8 irq_base;
  47         __u8 read_reg_select;
  48         __u8 poll;
  49         __u8 special_mask;
  50         __u8 init_state;
  51         __u8 auto_eoi;
  52         __u8 rotate_on_auto_eoi;
  53         __u8 special_fully_nested_mode;
  54         __u8 init4;             /* true if 4 byte init */
  55         __u8 elcr;              /* PIIX edge/trigger selection */
  56         __u8 elcr_mask;
  57 };
  58
  59 #define KVM_IOAPIC_NUM_PINS  24
  60 struct kvm_ioapic_state {
  61         __u64 base_address;
  62         __u32 ioregsel;
  63         __u32 id;
  64         __u32 irr;
  65         __u32 pad;
  66         union {
  67                 __u64 bits;
  68                 struct {
  69                         __u8 vector;
  70                         __u8 delivery_mode:3;
  71                         __u8 dest_mode:1;
  72                         __u8 delivery_status:1;
  73                         __u8 polarity:1;
  74                         __u8 remote_irr:1;
  75                         __u8 trig_mode:1;
  76                         __u8 mask:1;
  77                         __u8 reserve:7;
  78                         __u8 reserved[4];
  79                         __u8 dest_id;
  80                 } fields;
  81         } redirtbl[KVM_IOAPIC_NUM_PINS];
  82 };
  83
  84 #define KVM_IRQCHIP_PIC_MASTER   0
  85 #define KVM_IRQCHIP_PIC_SLAVE    1
  86 #define KVM_IRQCHIP_IOAPIC       2
  87 #define KVM_NR_IRQCHIPS          3
  88
  89 /* for KVM_GET_REGS and KVM_SET_REGS */
  90 struct kvm_regs {
  91         /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */
  92         __u64 rax, rbx, rcx, rdx;
  93         __u64 rsi, rdi, rsp, rbp;
  94         __u64 r8,  r9,  r10, r11;
  95         __u64 r12, r13, r14, r15;
  96         __u64 rip, rflags;
  97 };
  98
  99 /* for KVM_GET_LAPIC and KVM_SET_LAPIC */
 100 #define KVM_APIC_REG_SIZE 0x400
 101 struct kvm_lapic_state {
 102         char regs[KVM_APIC_REG_SIZE];
 103 };
 104
 105 struct kvm_segment {
 106         __u64 base;
 107         __u32 limit;
 108         __u16 selector;
 109         __u8  type;
 110         __u8  present, dpl, db, s, l, g, avl;
 111         __u8  unusable;
 112         __u8  padding;
 113 };
 114
 115 struct kvm_dtable {
 116         __u64 base;
 117         __u16 limit;
 118         __u16 padding[3];
 119 };
 120
 121
 122 /* for KVM_GET_SREGS and KVM_SET_SREGS */
 123 struct kvm_sregs {
 124         /* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */
 125         struct kvm_segment cs, ds, es, fs, gs, ss;
 126         struct kvm_segment tr, ldt;
 127         struct kvm_dtable gdt, idt;
 128         __u64 cr0, cr2, cr3, cr4, cr8;
 129         __u64 efer;
 130         __u64 apic_base;
 131         __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64];
 132 };
 133
 134 /* for KVM_GET_FPU and KVM_SET_FPU */
 135 struct kvm_fpu {
 136         __u8  fpr[8][16];
 137         __u16 fcw;
 138         __u16 fsw;
 139         __u8  ftwx;  /* in fxsave format */
 140         __u8  pad1;
 141         __u16 last_opcode;
 142         __u64 last_ip;
 143         __u64 last_dp;
 144         __u8  xmm[16][16];
 145         __u32 mxcsr;
 146         __u32 pad2;
 147 };
 148
 149 struct kvm_msr_entry {
 150         __u32 index;
 151         __u32 reserved;
 152         __u64 data;
 153 };
 154
 155 /* for KVM_GET_MSRS and KVM_SET_MSRS */
 156 struct kvm_msrs {
 157         __u32 nmsrs; /* number of msrs in entries */
 158         __u32 pad;
 159
 160         struct kvm_msr_entry entries[0];
 161 };
 162
 163 /* for KVM_GET_MSR_INDEX_LIST */
 164 struct kvm_msr_list {
 165         __u32 nmsrs; /* number of msrs in entries */
 166         __u32 indices[0];
 167 };
 168
 169
 170 struct kvm_cpuid_entry {
 171         __u32 function;
 172         __u32 eax;
 173         __u32 ebx;
 174         __u32 ecx;
 175         __u32 edx;
 176         __u32 padding;
 177 };
 178
 179 /* for KVM_SET_CPUID */
 180 struct kvm_cpuid {
 181         __u32 nent;
 182         __u32 padding;
 183         struct kvm_cpuid_entry entries[0];
 184 };
 185
 186 struct kvm_cpuid_entry2 {
 187         __u32 function;
 188         __u32 index;
 189         __u32 flags;
 190         __u32 eax;
 191         __u32 ebx;
 192         __u32 ecx;
 193         __u32 edx;
 194         __u32 padding[3];
 195 };
 196
 197 #define KVM_CPUID_FLAG_SIGNIFCANT_INDEX 1
 198 #define KVM_CPUID_FLAG_STATEFUL_FUNC    2
 199 #define KVM_CPUID_FLAG_STATE_READ_NEXT  4
 200
 201 /* for KVM_SET_CPUID2 */
 202 struct kvm_cpuid2 {
 203         __u32 nent;
 204         __u32 padding;
 205         struct kvm_cpuid_entry2 entries[0];
 206 };
 207
 208 /* for KVM_GET_PIT and KVM_SET_PIT */
 209 struct kvm_pit_channel_state {
 210         __u32 count; /* can be 65536 */
 211         __u16 latched_count;
 212         __u8 count_latched;
 213         __u8 status_latched;
 214         __u8 status;
 215         __u8 read_state;
 216         __u8 write_state;
 217         __u8 write_latch;
 218         __u8 rw_mode;
 219         __u8 mode;
 220         __u8 bcd;
 221         __u8 gate;
 222         __s64 count_load_time;
 223 };
 224
 225 struct kvm_debug_exit_arch {
 226         __u32 exception;
 227         __u32 pad;
 228         __u64 pc;
 229         __u64 dr6;
 230         __u64 dr7;
 231 };
 232
 233 #define KVM_GUESTDBG_USE_SW_BP          0x00010000
 234 #define KVM_GUESTDBG_USE_HW_BP          0x00020000
 235 #define KVM_GUESTDBG_INJECT_DB          0x00040000
 236 #define KVM_GUESTDBG_INJECT_BP          0x00080000
 237
 238 /* for KVM_SET_GUEST_DEBUG */
 239 struct kvm_guest_debug_arch {
 240         __u64 debugreg[8];
 241 };
 242
 243 struct kvm_pit_state {
 244         struct kvm_pit_channel_state channels[3];
 245 };
 246
 247 #define KVM_PIT_FLAGS_HPET_LEGACY  0x00000001
 248
 249 struct kvm_pit_state2 {
 250         struct kvm_pit_channel_state channels[3];
 251         __u32 flags;
 252         __u32 reserved[9];
 253 };
 254
 255 struct kvm_reinject_control {
 256         __u8 pit_reinject;
 257         __u8 reserved[31];
 258 };
 259
 260 /* When set in flags, include corresponding fields on KVM_SET_VCPU_EVENTS */
 261 #define KVM_VCPUEVENT_VALID_NMI_PENDING 0x00000001
 262 #define KVM_VCPUEVENT_VALID_SIPI_VECTOR 0x00000002
 263 #define KVM_VCPUEVENT_VALID_SHADOW      0x00000004
 264
 265 /* Interrupt shadow states */
 266 #define KVM_X86_SHADOW_INT_MOV_SS       0x01
 267 #define KVM_X86_SHADOW_INT_STI          0x02
 268
 269 /* for KVM_GET/SET_VCPU_EVENTS */
 270 struct kvm_vcpu_events {
 271         struct {
 272                 __u8 injected;
 273                 __u8 nr;
 274                 __u8 has_error_code;
 275                 __u8 pad;
 276                 __u32 error_code;
 277         } exception;
 278         struct {
 279                 __u8 injected;
 280                 __u8 nr;
 281                 __u8 soft;
 282                 __u8 shadow;
 283         } interrupt;
 284         struct {
 285                 __u8 injected;
 286                 __u8 pending;
 287                 __u8 masked;
 288                 __u8 pad;
 289         } nmi;
 290         __u32 sipi_vector;
 291         __u32 flags;
 292         __u32 reserved[10];
 293 };
 294
 295 /* for KVM_GET/SET_DEBUGREGS */
 296 struct kvm_debugregs {
 297         __u64 db[4];
 298         __u64 dr6;
 299         __u64 dr7;
 300         __u64 flags;
 301         __u64 reserved[9];
 302 };
 303
 304 /* for KVM_CAP_XSAVE */
 305 struct kvm_xsave {
 306         __u32 region[1024];
 307 };
 308
 309 #define KVM_MAX_XCRS    16
 310
 311 struct kvm_xcr {
 312         __u32 xcr;
 313         __u32 reserved;
 314         __u64 value;
 315 };
 316
 317 struct kvm_xcrs {
 318         __u32 nr_xcrs;
 319         __u32 flags;
 320         struct kvm_xcr xcrs[KVM_MAX_XCRS];
 321         __u64 padding[16];
 322 };
 323
 324 #endif /* _ASM_X86_KVM_H */