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