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Diffstat (limited to 'include/asm-x86/desc_defs.h')
-rw-r--r-- | include/asm-x86/desc_defs.h | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/include/asm-x86/desc_defs.h b/include/asm-x86/desc_defs.h deleted file mode 100644 index b881db664b46..000000000000 --- a/include/asm-x86/desc_defs.h +++ /dev/null | |||
@@ -1,95 +0,0 @@ | |||
1 | /* Written 2000 by Andi Kleen */ | ||
2 | #ifndef ASM_X86__DESC_DEFS_H | ||
3 | #define ASM_X86__DESC_DEFS_H | ||
4 | |||
5 | /* | ||
6 | * Segment descriptor structure definitions, usable from both x86_64 and i386 | ||
7 | * archs. | ||
8 | */ | ||
9 | |||
10 | #ifndef __ASSEMBLY__ | ||
11 | |||
12 | #include <linux/types.h> | ||
13 | |||
14 | /* | ||
15 | * FIXME: Acessing the desc_struct through its fields is more elegant, | ||
16 | * and should be the one valid thing to do. However, a lot of open code | ||
17 | * still touches the a and b acessors, and doing this allow us to do it | ||
18 | * incrementally. We keep the signature as a struct, rather than an union, | ||
19 | * so we can get rid of it transparently in the future -- glommer | ||
20 | */ | ||
21 | /* 8 byte segment descriptor */ | ||
22 | struct desc_struct { | ||
23 | union { | ||
24 | struct { | ||
25 | unsigned int a; | ||
26 | unsigned int b; | ||
27 | }; | ||
28 | struct { | ||
29 | u16 limit0; | ||
30 | u16 base0; | ||
31 | unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1; | ||
32 | unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8; | ||
33 | }; | ||
34 | }; | ||
35 | } __attribute__((packed)); | ||
36 | |||
37 | enum { | ||
38 | GATE_INTERRUPT = 0xE, | ||
39 | GATE_TRAP = 0xF, | ||
40 | GATE_CALL = 0xC, | ||
41 | GATE_TASK = 0x5, | ||
42 | }; | ||
43 | |||
44 | /* 16byte gate */ | ||
45 | struct gate_struct64 { | ||
46 | u16 offset_low; | ||
47 | u16 segment; | ||
48 | unsigned ist : 3, zero0 : 5, type : 5, dpl : 2, p : 1; | ||
49 | u16 offset_middle; | ||
50 | u32 offset_high; | ||
51 | u32 zero1; | ||
52 | } __attribute__((packed)); | ||
53 | |||
54 | #define PTR_LOW(x) ((unsigned long long)(x) & 0xFFFF) | ||
55 | #define PTR_MIDDLE(x) (((unsigned long long)(x) >> 16) & 0xFFFF) | ||
56 | #define PTR_HIGH(x) ((unsigned long long)(x) >> 32) | ||
57 | |||
58 | enum { | ||
59 | DESC_TSS = 0x9, | ||
60 | DESC_LDT = 0x2, | ||
61 | DESCTYPE_S = 0x10, /* !system */ | ||
62 | }; | ||
63 | |||
64 | /* LDT or TSS descriptor in the GDT. 16 bytes. */ | ||
65 | struct ldttss_desc64 { | ||
66 | u16 limit0; | ||
67 | u16 base0; | ||
68 | unsigned base1 : 8, type : 5, dpl : 2, p : 1; | ||
69 | unsigned limit1 : 4, zero0 : 3, g : 1, base2 : 8; | ||
70 | u32 base3; | ||
71 | u32 zero1; | ||
72 | } __attribute__((packed)); | ||
73 | |||
74 | #ifdef CONFIG_X86_64 | ||
75 | typedef struct gate_struct64 gate_desc; | ||
76 | typedef struct ldttss_desc64 ldt_desc; | ||
77 | typedef struct ldttss_desc64 tss_desc; | ||
78 | #define gate_offset(g) ((g).offset_low | ((unsigned long)(g).offset_middle << 16) | ((unsigned long)(g).offset_high << 32)) | ||
79 | #define gate_segment(g) ((g).segment) | ||
80 | #else | ||
81 | typedef struct desc_struct gate_desc; | ||
82 | typedef struct desc_struct ldt_desc; | ||
83 | typedef struct desc_struct tss_desc; | ||
84 | #define gate_offset(g) (((g).b & 0xffff0000) | ((g).a & 0x0000ffff)) | ||
85 | #define gate_segment(g) ((g).a >> 16) | ||
86 | #endif | ||
87 | |||
88 | struct desc_ptr { | ||
89 | unsigned short size; | ||
90 | unsigned long address; | ||
91 | } __attribute__((packed)) ; | ||
92 | |||
93 | #endif /* !__ASSEMBLY__ */ | ||
94 | |||
95 | #endif /* ASM_X86__DESC_DEFS_H */ | ||