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9#ifndef _ASM_X86_XEN_INTERFACE_H
10#define _ASM_X86_XEN_INTERFACE_H
11
12#ifdef __XEN__
13#define __DEFINE_GUEST_HANDLE(name, type) \
14 typedef struct { type *p; } __guest_handle_ ## name
15#else
16#define __DEFINE_GUEST_HANDLE(name, type) \
17 typedef type * __guest_handle_ ## name
18#endif
19
20#define DEFINE_GUEST_HANDLE_STRUCT(name) \
21 __DEFINE_GUEST_HANDLE(name, struct name)
22#define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name)
23#define GUEST_HANDLE(name) __guest_handle_ ## name
24
25#ifdef __XEN__
26#if defined(__i386__)
27#define set_xen_guest_handle(hnd, val) \
28 do { \
29 if (sizeof(hnd) == 8) \
30 *(uint64_t *)&(hnd) = 0; \
31 (hnd).p = val; \
32 } while (0)
33#elif defined(__x86_64__)
34#define set_xen_guest_handle(hnd, val) do { (hnd).p = val; } while (0)
35#endif
36#else
37#if defined(__i386__)
38#define set_xen_guest_handle(hnd, val) \
39 do { \
40 if (sizeof(hnd) == 8) \
41 *(uint64_t *)&(hnd) = 0; \
42 (hnd) = val; \
43 } while (0)
44#elif defined(__x86_64__)
45#define set_xen_guest_handle(hnd, val) do { (hnd) = val; } while (0)
46#endif
47#endif
48
49#ifndef __ASSEMBLY__
50
51
52
53typedef unsigned long xen_pfn_t;
54#define PRI_xen_pfn "lx"
55typedef unsigned long xen_ulong_t;
56#define PRI_xen_ulong "lx"
57
58__DEFINE_GUEST_HANDLE(uchar, unsigned char);
59__DEFINE_GUEST_HANDLE(uint, unsigned int);
60DEFINE_GUEST_HANDLE(char);
61DEFINE_GUEST_HANDLE(int);
62DEFINE_GUEST_HANDLE(void);
63DEFINE_GUEST_HANDLE(uint64_t);
64DEFINE_GUEST_HANDLE(uint32_t);
65DEFINE_GUEST_HANDLE(xen_pfn_t);
66DEFINE_GUEST_HANDLE(xen_ulong_t);
67#endif
68
69#ifndef HYPERVISOR_VIRT_START
70#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START)
71#endif
72
73#define MACH2PHYS_VIRT_START mk_unsigned_long(__MACH2PHYS_VIRT_START)
74#define MACH2PHYS_VIRT_END mk_unsigned_long(__MACH2PHYS_VIRT_END)
75#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>__MACH2PHYS_SHIFT)
76
77
78#define MAX_VIRT_CPUS 32
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89#define FIRST_RESERVED_GDT_PAGE 14
90#define FIRST_RESERVED_GDT_BYTE (FIRST_RESERVED_GDT_PAGE * 4096)
91#define FIRST_RESERVED_GDT_ENTRY (FIRST_RESERVED_GDT_BYTE / 8)
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102
103#define TI_GET_DPL(_ti) ((_ti)->flags & 3)
104#define TI_GET_IF(_ti) ((_ti)->flags & 4)
105#define TI_SET_DPL(_ti, _dpl) ((_ti)->flags |= (_dpl))
106#define TI_SET_IF(_ti, _if) ((_ti)->flags |= ((!!(_if))<<2))
107
108#ifndef __ASSEMBLY__
109struct trap_info {
110 uint8_t vector;
111 uint8_t flags;
112 uint16_t cs;
113 unsigned long address;
114};
115DEFINE_GUEST_HANDLE_STRUCT(trap_info);
116
117struct arch_shared_info {
118 unsigned long max_pfn;
119
120 unsigned long pfn_to_mfn_frame_list_list;
121 unsigned long nmi_reason;
122};
123#endif
124
125#ifdef CONFIG_X86_32
126#include <asm/xen/interface_32.h>
127#else
128#include <asm/xen/interface_64.h>
129#endif
130
131#include <asm/pvclock-abi.h>
132
133#ifndef __ASSEMBLY__
134
135
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137
138struct vcpu_guest_context {
139
140 struct { char x[512]; } fpu_ctxt;
141#define VGCF_I387_VALID (1<<0)
142#define VGCF_HVM_GUEST (1<<1)
143#define VGCF_IN_KERNEL (1<<2)
144 unsigned long flags;
145 struct cpu_user_regs user_regs;
146 struct trap_info trap_ctxt[256];
147 unsigned long ldt_base, ldt_ents;
148 unsigned long gdt_frames[16], gdt_ents;
149 unsigned long kernel_ss, kernel_sp;
150
151 unsigned long ctrlreg[8];
152 unsigned long debugreg[8];
153#ifdef __i386__
154 unsigned long event_callback_cs;
155 unsigned long event_callback_eip;
156 unsigned long failsafe_callback_cs;
157 unsigned long failsafe_callback_eip;
158#else
159 unsigned long event_callback_eip;
160 unsigned long failsafe_callback_eip;
161 unsigned long syscall_callback_eip;
162#endif
163 unsigned long vm_assist;
164#ifdef __x86_64__
165
166 uint64_t fs_base;
167 uint64_t gs_base_kernel;
168 uint64_t gs_base_user;
169#endif
170};
171DEFINE_GUEST_HANDLE_STRUCT(vcpu_guest_context);
172#endif
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177
178#ifdef __ASSEMBLY__
179#define XEN_EMULATE_PREFIX .byte 0x0f,0x0b,0x78,0x65,0x6e ;
180#define XEN_CPUID XEN_EMULATE_PREFIX cpuid
181#else
182#define XEN_EMULATE_PREFIX ".byte 0x0f,0x0b,0x78,0x65,0x6e ; "
183#define XEN_CPUID XEN_EMULATE_PREFIX "cpuid"
184#endif
185
186#endif
187