| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef _ASM_X86_EXTABLE_FIXUP_TYPES_H |
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| 3 | #define _ASM_X86_EXTABLE_FIXUP_TYPES_H |
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| 4 | |
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| 5 | /* |
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| 6 | * Our IMM is signed, as such it must live at the top end of the word. Also, |
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| 7 | * since C99 hex constants are of ambiguous type, force cast the mask to 'int' |
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| 8 | * so that FIELD_GET() will DTRT and sign extend the value when it extracts it. |
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| 9 | */ |
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| 10 | #define EX_DATA_TYPE_MASK ((int)0x000000FF) |
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| 11 | #define EX_DATA_REG_MASK ((int)0x00000F00) |
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| 12 | #define EX_DATA_FLAG_MASK ((int)0x0000F000) |
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| 13 | #define EX_DATA_IMM_MASK ((int)0xFFFF0000) |
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| 14 | |
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| 15 | #define EX_DATA_REG_SHIFT 8 |
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| 16 | #define EX_DATA_FLAG_SHIFT 12 |
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| 17 | #define EX_DATA_IMM_SHIFT 16 |
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| 18 | |
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| 19 | #define EX_DATA_REG(reg) ((reg) << EX_DATA_REG_SHIFT) |
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| 20 | #define EX_DATA_FLAG(flag) ((flag) << EX_DATA_FLAG_SHIFT) |
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| 21 | #define EX_DATA_IMM(imm) ((imm) << EX_DATA_IMM_SHIFT) |
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| 22 | |
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| 23 | /* segment regs */ |
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| 24 | #define EX_REG_DS EX_DATA_REG(8) |
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| 25 | #define EX_REG_ES EX_DATA_REG(9) |
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| 26 | #define EX_REG_FS EX_DATA_REG(10) |
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| 27 | #define EX_REG_GS EX_DATA_REG(11) |
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| 28 | |
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| 29 | /* flags */ |
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| 30 | #define EX_FLAG_CLEAR_AX EX_DATA_FLAG(1) |
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| 31 | #define EX_FLAG_CLEAR_DX EX_DATA_FLAG(2) |
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| 32 | #define EX_FLAG_CLEAR_AX_DX EX_DATA_FLAG(3) |
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| 33 | |
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| 34 | /* types */ |
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| 35 | #define EX_TYPE_NONE 0 |
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| 36 | #define EX_TYPE_DEFAULT 1 |
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| 37 | #define EX_TYPE_FAULT 2 |
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| 38 | #define EX_TYPE_UACCESS 3 |
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| 39 | /* unused, was: #define EX_TYPE_COPY 4 */ |
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| 40 | #define EX_TYPE_CLEAR_FS 5 |
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| 41 | #define EX_TYPE_FPU_RESTORE 6 |
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| 42 | #define EX_TYPE_BPF 7 |
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| 43 | #define EX_TYPE_WRMSR 8 |
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| 44 | #define EX_TYPE_RDMSR 9 |
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| 45 | #define EX_TYPE_WRMSR_SAFE 10 /* reg := -EIO */ |
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| 46 | #define EX_TYPE_RDMSR_SAFE 11 /* reg := -EIO */ |
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| 47 | #define EX_TYPE_WRMSR_IN_MCE 12 |
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| 48 | #define EX_TYPE_RDMSR_IN_MCE 13 |
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| 49 | #define EX_TYPE_DEFAULT_MCE_SAFE 14 |
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| 50 | #define EX_TYPE_FAULT_MCE_SAFE 15 |
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| 51 | |
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| 52 | #define EX_TYPE_POP_REG 16 /* sp += sizeof(long) */ |
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| 53 | #define EX_TYPE_POP_ZERO (EX_TYPE_POP_REG | EX_DATA_IMM(0)) |
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| 54 | |
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| 55 | #define EX_TYPE_IMM_REG 17 /* reg := (long)imm */ |
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| 56 | #define EX_TYPE_EFAULT_REG (EX_TYPE_IMM_REG | EX_DATA_IMM(-EFAULT)) |
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| 57 | #define EX_TYPE_ZERO_REG (EX_TYPE_IMM_REG | EX_DATA_IMM(0)) |
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| 58 | #define EX_TYPE_ONE_REG (EX_TYPE_IMM_REG | EX_DATA_IMM(1)) |
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| 59 | |
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| 60 | #define EX_TYPE_FAULT_SGX 18 |
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| 61 | |
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| 62 | #define EX_TYPE_UCOPY_LEN 19 /* cx := reg + imm*cx */ |
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| 63 | #define EX_TYPE_UCOPY_LEN1 (EX_TYPE_UCOPY_LEN | EX_DATA_IMM(1)) |
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| 64 | #define EX_TYPE_UCOPY_LEN4 (EX_TYPE_UCOPY_LEN | EX_DATA_IMM(4)) |
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| 65 | #define EX_TYPE_UCOPY_LEN8 (EX_TYPE_UCOPY_LEN | EX_DATA_IMM(8)) |
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| 66 | |
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| 67 | #define EX_TYPE_ZEROPAD 20 /* longword load with zeropad on fault */ |
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| 68 | |
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| 69 | #define EX_TYPE_ERETU 21 |
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| 70 | |
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| 71 | #endif |
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| 72 | |
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