diff options
Diffstat (limited to 'include/asm-x86/xen/interface.h')
-rw-r--r-- | include/asm-x86/xen/interface.h | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/include/asm-x86/xen/interface.h b/include/asm-x86/xen/interface.h deleted file mode 100644 index d077bba96da..00000000000 --- a/include/asm-x86/xen/interface.h +++ /dev/null | |||
@@ -1,175 +0,0 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch-x86_32.h | ||
3 | * | ||
4 | * Guest OS interface to x86 Xen. | ||
5 | * | ||
6 | * Copyright (c) 2004, K A Fraser | ||
7 | */ | ||
8 | |||
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 | /* Guest handles for primitive C types. */ | ||
51 | __DEFINE_GUEST_HANDLE(uchar, unsigned char); | ||
52 | __DEFINE_GUEST_HANDLE(uint, unsigned int); | ||
53 | __DEFINE_GUEST_HANDLE(ulong, unsigned long); | ||
54 | DEFINE_GUEST_HANDLE(char); | ||
55 | DEFINE_GUEST_HANDLE(int); | ||
56 | DEFINE_GUEST_HANDLE(long); | ||
57 | DEFINE_GUEST_HANDLE(void); | ||
58 | #endif | ||
59 | |||
60 | #ifndef HYPERVISOR_VIRT_START | ||
61 | #define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START) | ||
62 | #endif | ||
63 | |||
64 | #ifndef machine_to_phys_mapping | ||
65 | #define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START) | ||
66 | #endif | ||
67 | |||
68 | /* Maximum number of virtual CPUs in multi-processor guests. */ | ||
69 | #define MAX_VIRT_CPUS 32 | ||
70 | |||
71 | /* | ||
72 | * SEGMENT DESCRIPTOR TABLES | ||
73 | */ | ||
74 | /* | ||
75 | * A number of GDT entries are reserved by Xen. These are not situated at the | ||
76 | * start of the GDT because some stupid OSes export hard-coded selector values | ||
77 | * in their ABI. These hard-coded values are always near the start of the GDT, | ||
78 | * so Xen places itself out of the way, at the far end of the GDT. | ||
79 | */ | ||
80 | #define FIRST_RESERVED_GDT_PAGE 14 | ||
81 | #define FIRST_RESERVED_GDT_BYTE (FIRST_RESERVED_GDT_PAGE * 4096) | ||
82 | #define FIRST_RESERVED_GDT_ENTRY (FIRST_RESERVED_GDT_BYTE / 8) | ||
83 | |||
84 | /* | ||
85 | * Send an array of these to HYPERVISOR_set_trap_table() | ||
86 | * The privilege level specifies which modes may enter a trap via a software | ||
87 | * interrupt. On x86/64, since rings 1 and 2 are unavailable, we allocate | ||
88 | * privilege levels as follows: | ||
89 | * Level == 0: Noone may enter | ||
90 | * Level == 1: Kernel may enter | ||
91 | * Level == 2: Kernel may enter | ||
92 | * Level == 3: Everyone may enter | ||
93 | */ | ||
94 | #define TI_GET_DPL(_ti) ((_ti)->flags & 3) | ||
95 | #define TI_GET_IF(_ti) ((_ti)->flags & 4) | ||
96 | #define TI_SET_DPL(_ti, _dpl) ((_ti)->flags |= (_dpl)) | ||
97 | #define TI_SET_IF(_ti, _if) ((_ti)->flags |= ((!!(_if))<<2)) | ||
98 | |||
99 | #ifndef __ASSEMBLY__ | ||
100 | struct trap_info { | ||
101 | uint8_t vector; /* exception vector */ | ||
102 | uint8_t flags; /* 0-3: privilege level; 4: clear event enable? */ | ||
103 | uint16_t cs; /* code selector */ | ||
104 | unsigned long address; /* code offset */ | ||
105 | }; | ||
106 | DEFINE_GUEST_HANDLE_STRUCT(trap_info); | ||
107 | |||
108 | struct arch_shared_info { | ||
109 | unsigned long max_pfn; /* max pfn that appears in table */ | ||
110 | /* Frame containing list of mfns containing list of mfns containing p2m. */ | ||
111 | unsigned long pfn_to_mfn_frame_list_list; | ||
112 | unsigned long nmi_reason; | ||
113 | }; | ||
114 | #endif /* !__ASSEMBLY__ */ | ||
115 | |||
116 | #ifdef CONFIG_X86_32 | ||
117 | #include "interface_32.h" | ||
118 | #else | ||
119 | #include "interface_64.h" | ||
120 | #endif | ||
121 | |||
122 | #ifndef __ASSEMBLY__ | ||
123 | /* | ||
124 | * The following is all CPU context. Note that the fpu_ctxt block is filled | ||
125 | * in by FXSAVE if the CPU has feature FXSR; otherwise FSAVE is used. | ||
126 | */ | ||
127 | struct vcpu_guest_context { | ||
128 | /* FPU registers come first so they can be aligned for FXSAVE/FXRSTOR. */ | ||
129 | struct { char x[512]; } fpu_ctxt; /* User-level FPU registers */ | ||
130 | #define VGCF_I387_VALID (1<<0) | ||
131 | #define VGCF_HVM_GUEST (1<<1) | ||
132 | #define VGCF_IN_KERNEL (1<<2) | ||
133 | unsigned long flags; /* VGCF_* flags */ | ||
134 | struct cpu_user_regs user_regs; /* User-level CPU registers */ | ||
135 | struct trap_info trap_ctxt[256]; /* Virtual IDT */ | ||
136 | unsigned long ldt_base, ldt_ents; /* LDT (linear address, # ents) */ | ||
137 | unsigned long gdt_frames[16], gdt_ents; /* GDT (machine frames, # ents) */ | ||
138 | unsigned long kernel_ss, kernel_sp; /* Virtual TSS (only SS1/SP1) */ | ||
139 | /* NB. User pagetable on x86/64 is placed in ctrlreg[1]. */ | ||
140 | unsigned long ctrlreg[8]; /* CR0-CR7 (control registers) */ | ||
141 | unsigned long debugreg[8]; /* DB0-DB7 (debug registers) */ | ||
142 | #ifdef __i386__ | ||
143 | unsigned long event_callback_cs; /* CS:EIP of event callback */ | ||
144 | unsigned long event_callback_eip; | ||
145 | unsigned long failsafe_callback_cs; /* CS:EIP of failsafe callback */ | ||
146 | unsigned long failsafe_callback_eip; | ||
147 | #else | ||
148 | unsigned long event_callback_eip; | ||
149 | unsigned long failsafe_callback_eip; | ||
150 | unsigned long syscall_callback_eip; | ||
151 | #endif | ||
152 | unsigned long vm_assist; /* VMASST_TYPE_* bitmap */ | ||
153 | #ifdef __x86_64__ | ||
154 | /* Segment base addresses. */ | ||
155 | uint64_t fs_base; | ||
156 | uint64_t gs_base_kernel; | ||
157 | uint64_t gs_base_user; | ||
158 | #endif | ||
159 | }; | ||
160 | DEFINE_GUEST_HANDLE_STRUCT(vcpu_guest_context); | ||
161 | #endif /* !__ASSEMBLY__ */ | ||
162 | |||
163 | /* | ||
164 | * Prefix forces emulation of some non-trapping instructions. | ||
165 | * Currently only CPUID. | ||
166 | */ | ||
167 | #ifdef __ASSEMBLY__ | ||
168 | #define XEN_EMULATE_PREFIX .byte 0x0f,0x0b,0x78,0x65,0x6e ; | ||
169 | #define XEN_CPUID XEN_EMULATE_PREFIX cpuid | ||
170 | #else | ||
171 | #define XEN_EMULATE_PREFIX ".byte 0x0f,0x0b,0x78,0x65,0x6e ; " | ||
172 | #define XEN_CPUID XEN_EMULATE_PREFIX "cpuid" | ||
173 | #endif | ||
174 | |||
175 | #endif /* ASM_X86__XEN__INTERFACE_H */ | ||