1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _ASM_X86_EXTABLE_FIXUP_TYPES_H |
3 | #define _ASM_X86_EXTABLE_FIXUP_TYPES_H |
4 | |
5 | /* |
6 | * Our IMM is signed, as such it must live at the top end of the word. Also, |
7 | * since C99 hex constants are of ambigious type, force cast the mask to 'int' |
8 | * so that FIELD_GET() will DTRT and sign extend the value when it extracts it. |
9 | */ |
10 | #define EX_DATA_TYPE_MASK ((int)0x000000FF) |
11 | #define EX_DATA_REG_MASK ((int)0x00000F00) |
12 | #define EX_DATA_FLAG_MASK ((int)0x0000F000) |
13 | #define EX_DATA_IMM_MASK ((int)0xFFFF0000) |
14 | |
15 | #define EX_DATA_REG_SHIFT 8 |
16 | #define EX_DATA_FLAG_SHIFT 12 |
17 | #define EX_DATA_IMM_SHIFT 16 |
18 | |
19 | #define EX_DATA_REG(reg) ((reg) << EX_DATA_REG_SHIFT) |
20 | #define EX_DATA_FLAG(flag) ((flag) << EX_DATA_FLAG_SHIFT) |
21 | #define EX_DATA_IMM(imm) ((imm) << EX_DATA_IMM_SHIFT) |
22 | |
23 | /* segment regs */ |
24 | #define EX_REG_DS EX_DATA_REG(8) |
25 | #define EX_REG_ES EX_DATA_REG(9) |
26 | #define EX_REG_FS EX_DATA_REG(10) |
27 | #define EX_REG_GS EX_DATA_REG(11) |
28 | |
29 | /* flags */ |
30 | #define EX_FLAG_CLEAR_AX EX_DATA_FLAG(1) |
31 | #define EX_FLAG_CLEAR_DX EX_DATA_FLAG(2) |
32 | #define EX_FLAG_CLEAR_AX_DX EX_DATA_FLAG(3) |
33 | |
34 | /* types */ |
35 | #define EX_TYPE_NONE 0 |
36 | #define EX_TYPE_DEFAULT 1 |
37 | #define EX_TYPE_FAULT 2 |
38 | #define EX_TYPE_UACCESS 3 |
39 | #define EX_TYPE_COPY 4 |
40 | #define EX_TYPE_CLEAR_FS 5 |
41 | #define EX_TYPE_FPU_RESTORE 6 |
42 | #define EX_TYPE_BPF 7 |
43 | #define EX_TYPE_WRMSR 8 |
44 | #define EX_TYPE_RDMSR 9 |
45 | #define EX_TYPE_WRMSR_SAFE 10 /* reg := -EIO */ |
46 | #define EX_TYPE_RDMSR_SAFE 11 /* reg := -EIO */ |
47 | #define EX_TYPE_WRMSR_IN_MCE 12 |
48 | #define EX_TYPE_RDMSR_IN_MCE 13 |
49 | #define EX_TYPE_DEFAULT_MCE_SAFE 14 |
50 | #define EX_TYPE_FAULT_MCE_SAFE 15 |
51 | |
52 | #define EX_TYPE_POP_REG 16 /* sp += sizeof(long) */ |
53 | #define EX_TYPE_POP_ZERO (EX_TYPE_POP_REG | EX_DATA_IMM(0)) |
54 | |
55 | #define EX_TYPE_IMM_REG 17 /* reg := (long)imm */ |
56 | #define EX_TYPE_EFAULT_REG (EX_TYPE_IMM_REG | EX_DATA_IMM(-EFAULT)) |
57 | #define EX_TYPE_ZERO_REG (EX_TYPE_IMM_REG | EX_DATA_IMM(0)) |
58 | #define EX_TYPE_ONE_REG (EX_TYPE_IMM_REG | EX_DATA_IMM(1)) |
59 | |
60 | #define EX_TYPE_FAULT_SGX 18 |
61 | |
62 | #define EX_TYPE_UCOPY_LEN 19 /* cx := reg + imm*cx */ |
63 | #define EX_TYPE_UCOPY_LEN1 (EX_TYPE_UCOPY_LEN | EX_DATA_IMM(1)) |
64 | #define EX_TYPE_UCOPY_LEN4 (EX_TYPE_UCOPY_LEN | EX_DATA_IMM(4)) |
65 | #define EX_TYPE_UCOPY_LEN8 (EX_TYPE_UCOPY_LEN | EX_DATA_IMM(8)) |
66 | |
67 | #define EX_TYPE_ZEROPAD 20 /* longword load with zeropad on fault */ |
68 | |
69 | #endif |
70 | |