1#ifndef __LINUX_KVM_X86_H
2#define __LINUX_KVM_X86_H
3
4/*
5 * KVM x86 specific structures and definitions
6 *
7 */
8
9#include <asm/types.h>
10#include <linux/ioctl.h>
11
12/* Architectural interrupt line count. */
13#define KVM_NR_INTERRUPTS 256
14
15struct kvm_memory_alias {
16	__u32 slot;  /* this has a different namespace than memory slots */
17	__u32 flags;
18	__u64 guest_phys_addr;
19	__u64 memory_size;
20	__u64 target_phys_addr;
21};
22
23/* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */
24struct kvm_pic_state {
25	__u8 last_irr;	/* edge detection */
26	__u8 irr;		/* interrupt request register */
27	__u8 imr;		/* interrupt mask register */
28	__u8 isr;		/* interrupt service register */
29	__u8 priority_add;	/* highest irq priority */
30	__u8 irq_base;
31	__u8 read_reg_select;
32	__u8 poll;
33	__u8 special_mask;
34	__u8 init_state;
35	__u8 auto_eoi;
36	__u8 rotate_on_auto_eoi;
37	__u8 special_fully_nested_mode;
38	__u8 init4;		/* true if 4 byte init */
39	__u8 elcr;		/* PIIX edge/trigger selection */
40	__u8 elcr_mask;
41};
42
43#define KVM_IOAPIC_NUM_PINS  24
44struct kvm_ioapic_state {
45	__u64 base_address;
46	__u32 ioregsel;
47	__u32 id;
48	__u32 irr;
49	__u32 pad;
50	union {
51		__u64 bits;
52		struct {
53			__u8 vector;
54			__u8 delivery_mode:3;
55			__u8 dest_mode:1;
56			__u8 delivery_status:1;
57			__u8 polarity:1;
58			__u8 remote_irr:1;
59			__u8 trig_mode:1;
60			__u8 mask:1;
61			__u8 reserve:7;
62			__u8 reserved[4];
63			__u8 dest_id;
64		} fields;
65	} redirtbl[KVM_IOAPIC_NUM_PINS];
66};
67
68#define KVM_IRQCHIP_PIC_MASTER   0
69#define KVM_IRQCHIP_PIC_SLAVE    1
70#define KVM_IRQCHIP_IOAPIC       2
71
72/* for KVM_GET_REGS and KVM_SET_REGS */
73struct kvm_regs {
74	/* out (KVM_GET_REGS) / in (KVM_SET_REGS) */
75	__u64 rax, rbx, rcx, rdx;
76	__u64 rsi, rdi, rsp, rbp;
77	__u64 r8,  r9,  r10, r11;
78	__u64 r12, r13, r14, r15;
79	__u64 rip, rflags;
80};
81
82/* for KVM_GET_LAPIC and KVM_SET_LAPIC */
83#define KVM_APIC_REG_SIZE 0x400
84struct kvm_lapic_state {
85	char regs[KVM_APIC_REG_SIZE];
86};
87
88struct kvm_segment {
89	__u64 base;
90	__u32 limit;
91	__u16 selector;
92	__u8  type;
93	__u8  present, dpl, db, s, l, g, avl;
94	__u8  unusable;
95	__u8  padding;
96};
97
98struct kvm_dtable {
99	__u64 base;
100	__u16 limit;
101	__u16 padding[3];
102};
103
104
105/* for KVM_GET_SREGS and KVM_SET_SREGS */
106struct kvm_sregs {
107	/* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */
108	struct kvm_segment cs, ds, es, fs, gs, ss;
109	struct kvm_segment tr, ldt;
110	struct kvm_dtable gdt, idt;
111	__u64 cr0, cr2, cr3, cr4, cr8;
112	__u64 efer;
113	__u64 apic_base;
114	__u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64];
115};
116
117/* for KVM_GET_FPU and KVM_SET_FPU */
118struct kvm_fpu {
119	__u8  fpr[8][16];
120	__u16 fcw;
121	__u16 fsw;
122	__u8  ftwx;  /* in fxsave format */
123	__u8  pad1;
124	__u16 last_opcode;
125	__u64 last_ip;
126	__u64 last_dp;
127	__u8  xmm[16][16];
128	__u32 mxcsr;
129	__u32 pad2;
130};
131
132struct kvm_msr_entry {
133	__u32 index;
134	__u32 reserved;
135	__u64 data;
136};
137
138/* for KVM_GET_MSRS and KVM_SET_MSRS */
139struct kvm_msrs {
140	__u32 nmsrs; /* number of msrs in entries */
141	__u32 pad;
142
143	struct kvm_msr_entry entries[0];
144};
145
146/* for KVM_GET_MSR_INDEX_LIST */
147struct kvm_msr_list {
148	__u32 nmsrs; /* number of msrs in entries */
149	__u32 indices[0];
150};
151
152
153struct kvm_cpuid_entry {
154	__u32 function;
155	__u32 eax;
156	__u32 ebx;
157	__u32 ecx;
158	__u32 edx;
159	__u32 padding;
160};
161
162/* for KVM_SET_CPUID */
163struct kvm_cpuid {
164	__u32 nent;
165	__u32 padding;
166	struct kvm_cpuid_entry entries[0];
167};
168
169struct kvm_cpuid_entry2 {
170	__u32 function;
171	__u32 index;
172	__u32 flags;
173	__u32 eax;
174	__u32 ebx;
175	__u32 ecx;
176	__u32 edx;
177	__u32 padding[3];
178};
179
180#define KVM_CPUID_FLAG_SIGNIFCANT_INDEX 1
181#define KVM_CPUID_FLAG_STATEFUL_FUNC    2
182#define KVM_CPUID_FLAG_STATE_READ_NEXT  4
183
184/* for KVM_SET_CPUID2 */
185struct kvm_cpuid2 {
186	__u32 nent;
187	__u32 padding;
188	struct kvm_cpuid_entry2 entries[0];
189};
190
191#endif
192