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Diffstat (limited to 'include/asm-x86/xen/interface_64.h')
-rw-r--r--include/asm-x86/xen/interface_64.h159
1 files changed, 0 insertions, 159 deletions
diff --git a/include/asm-x86/xen/interface_64.h b/include/asm-x86/xen/interface_64.h
deleted file mode 100644
index 046c0f1e01d4..000000000000
--- a/include/asm-x86/xen/interface_64.h
+++ /dev/null
@@ -1,159 +0,0 @@
1#ifndef ASM_X86__XEN__INTERFACE_64_H
2#define ASM_X86__XEN__INTERFACE_64_H
3
4/*
5 * 64-bit segment selectors
6 * These flat segments are in the Xen-private section of every GDT. Since these
7 * are also present in the initial GDT, many OSes will be able to avoid
8 * installing their own GDT.
9 */
10
11#define FLAT_RING3_CS32 0xe023 /* GDT index 260 */
12#define FLAT_RING3_CS64 0xe033 /* GDT index 261 */
13#define FLAT_RING3_DS32 0xe02b /* GDT index 262 */
14#define FLAT_RING3_DS64 0x0000 /* NULL selector */
15#define FLAT_RING3_SS32 0xe02b /* GDT index 262 */
16#define FLAT_RING3_SS64 0xe02b /* GDT index 262 */
17
18#define FLAT_KERNEL_DS64 FLAT_RING3_DS64
19#define FLAT_KERNEL_DS32 FLAT_RING3_DS32
20#define FLAT_KERNEL_DS FLAT_KERNEL_DS64
21#define FLAT_KERNEL_CS64 FLAT_RING3_CS64
22#define FLAT_KERNEL_CS32 FLAT_RING3_CS32
23#define FLAT_KERNEL_CS FLAT_KERNEL_CS64
24#define FLAT_KERNEL_SS64 FLAT_RING3_SS64
25#define FLAT_KERNEL_SS32 FLAT_RING3_SS32
26#define FLAT_KERNEL_SS FLAT_KERNEL_SS64
27
28#define FLAT_USER_DS64 FLAT_RING3_DS64
29#define FLAT_USER_DS32 FLAT_RING3_DS32
30#define FLAT_USER_DS FLAT_USER_DS64
31#define FLAT_USER_CS64 FLAT_RING3_CS64
32#define FLAT_USER_CS32 FLAT_RING3_CS32
33#define FLAT_USER_CS FLAT_USER_CS64
34#define FLAT_USER_SS64 FLAT_RING3_SS64
35#define FLAT_USER_SS32 FLAT_RING3_SS32
36#define FLAT_USER_SS FLAT_USER_SS64
37
38#define __HYPERVISOR_VIRT_START 0xFFFF800000000000
39#define __HYPERVISOR_VIRT_END 0xFFFF880000000000
40#define __MACH2PHYS_VIRT_START 0xFFFF800000000000
41#define __MACH2PHYS_VIRT_END 0xFFFF804000000000
42
43#ifndef HYPERVISOR_VIRT_START
44#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START)
45#define HYPERVISOR_VIRT_END mk_unsigned_long(__HYPERVISOR_VIRT_END)
46#endif
47
48#define MACH2PHYS_VIRT_START mk_unsigned_long(__MACH2PHYS_VIRT_START)
49#define MACH2PHYS_VIRT_END mk_unsigned_long(__MACH2PHYS_VIRT_END)
50#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>3)
51#ifndef machine_to_phys_mapping
52#define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START)
53#endif
54
55/*
56 * int HYPERVISOR_set_segment_base(unsigned int which, unsigned long base)
57 * @which == SEGBASE_* ; @base == 64-bit base address
58 * Returns 0 on success.
59 */
60#define SEGBASE_FS 0
61#define SEGBASE_GS_USER 1
62#define SEGBASE_GS_KERNEL 2
63#define SEGBASE_GS_USER_SEL 3 /* Set user %gs specified in base[15:0] */
64
65/*
66 * int HYPERVISOR_iret(void)
67 * All arguments are on the kernel stack, in the following format.
68 * Never returns if successful. Current kernel context is lost.
69 * The saved CS is mapped as follows:
70 * RING0 -> RING3 kernel mode.
71 * RING1 -> RING3 kernel mode.
72 * RING2 -> RING3 kernel mode.
73 * RING3 -> RING3 user mode.
74 * However RING0 indicates that the guest kernel should return to iteself
75 * directly with
76 * orb $3,1*8(%rsp)
77 * iretq
78 * If flags contains VGCF_in_syscall:
79 * Restore RAX, RIP, RFLAGS, RSP.
80 * Discard R11, RCX, CS, SS.
81 * Otherwise:
82 * Restore RAX, R11, RCX, CS:RIP, RFLAGS, SS:RSP.
83 * All other registers are saved on hypercall entry and restored to user.
84 */
85/* Guest exited in SYSCALL context? Return to guest with SYSRET? */
86#define _VGCF_in_syscall 8
87#define VGCF_in_syscall (1<<_VGCF_in_syscall)
88#define VGCF_IN_SYSCALL VGCF_in_syscall
89
90#ifndef __ASSEMBLY__
91
92struct iret_context {
93 /* Top of stack (%rsp at point of hypercall). */
94 uint64_t rax, r11, rcx, flags, rip, cs, rflags, rsp, ss;
95 /* Bottom of iret stack frame. */
96};
97
98#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
99/* Anonymous union includes both 32- and 64-bit names (e.g., eax/rax). */
100#define __DECL_REG(name) union { \
101 uint64_t r ## name, e ## name; \
102 uint32_t _e ## name; \
103}
104#else
105/* Non-gcc sources must always use the proper 64-bit name (e.g., rax). */
106#define __DECL_REG(name) uint64_t r ## name
107#endif
108
109struct cpu_user_regs {
110 uint64_t r15;
111 uint64_t r14;
112 uint64_t r13;
113 uint64_t r12;
114 __DECL_REG(bp);
115 __DECL_REG(bx);
116 uint64_t r11;
117 uint64_t r10;
118 uint64_t r9;
119 uint64_t r8;
120 __DECL_REG(ax);
121 __DECL_REG(cx);
122 __DECL_REG(dx);
123 __DECL_REG(si);
124 __DECL_REG(di);
125 uint32_t error_code; /* private */
126 uint32_t entry_vector; /* private */
127 __DECL_REG(ip);
128 uint16_t cs, _pad0[1];
129 uint8_t saved_upcall_mask;
130 uint8_t _pad1[3];
131 __DECL_REG(flags); /* rflags.IF == !saved_upcall_mask */
132 __DECL_REG(sp);
133 uint16_t ss, _pad2[3];
134 uint16_t es, _pad3[3];
135 uint16_t ds, _pad4[3];
136 uint16_t fs, _pad5[3]; /* Non-zero => takes precedence over fs_base. */
137 uint16_t gs, _pad6[3]; /* Non-zero => takes precedence over gs_base_usr. */
138};
139DEFINE_GUEST_HANDLE_STRUCT(cpu_user_regs);
140
141#undef __DECL_REG
142
143#define xen_pfn_to_cr3(pfn) ((unsigned long)(pfn) << 12)
144#define xen_cr3_to_pfn(cr3) ((unsigned long)(cr3) >> 12)
145
146struct arch_vcpu_info {
147 unsigned long cr2;
148 unsigned long pad; /* sizeof(vcpu_info_t) == 64 */
149};
150
151typedef unsigned long xen_callback_t;
152
153#define XEN_CALLBACK(__cs, __rip) \
154 ((unsigned long)(__rip))
155
156#endif /* !__ASSEMBLY__ */
157
158
159#endif /* ASM_X86__XEN__INTERFACE_64_H */
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