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-rw-r--r--arch/x86/kernel/kprobes/core.c2
-rw-r--r--arch/x86/kernel/uprobes.c153
2 files changed, 111 insertions, 44 deletions
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 98f654d466e5..6a1146ea4d4d 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -84,7 +84,7 @@ static volatile u32 twobyte_is_boostable[256 / 32] = {
84 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ 84 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
85 /* ---------------------------------------------- */ 85 /* ---------------------------------------------- */
86 W(0x00, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0) | /* 00 */ 86 W(0x00, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0) | /* 00 */
87 W(0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 10 */ 87 W(0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1) , /* 10 */
88 W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 20 */ 88 W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 20 */
89 W(0x30, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 30 */ 89 W(0x30, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 30 */
90 W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */ 90 W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
index 8b96a947021f..81f8adb0679e 100644
--- a/arch/x86/kernel/uprobes.c
+++ b/arch/x86/kernel/uprobes.c
@@ -66,27 +66,54 @@
66 * Good-instruction tables for 32-bit apps. This is non-const and volatile 66 * Good-instruction tables for 32-bit apps. This is non-const and volatile
67 * to keep gcc from statically optimizing it out, as variable_test_bit makes 67 * to keep gcc from statically optimizing it out, as variable_test_bit makes
68 * some versions of gcc to think only *(unsigned long*) is used. 68 * some versions of gcc to think only *(unsigned long*) is used.
69 *
70 * Opcodes we'll probably never support:
71 * 6c-6f - ins,outs. SEGVs if used in userspace
72 * e4-e7 - in,out imm. SEGVs if used in userspace
73 * ec-ef - in,out acc. SEGVs if used in userspace
74 * cc - int3. SIGTRAP if used in userspace
75 * ce - into. Not used in userspace - no kernel support to make it useful. SEGVs
76 * (why we support bound (62) then? it's similar, and similarly unused...)
77 * f1 - int1. SIGTRAP if used in userspace
78 * f4 - hlt. SEGVs if used in userspace
79 * fa - cli. SEGVs if used in userspace
80 * fb - sti. SEGVs if used in userspace
81 *
82 * Opcodes which need some work to be supported:
83 * 07,17,1f - pop es/ss/ds
84 * Normally not used in userspace, but would execute if used.
85 * Can cause GP or stack exception if tries to load wrong segment descriptor.
86 * We hesitate to run them under single step since kernel's handling
87 * of userspace single-stepping (TF flag) is fragile.
88 * We can easily refuse to support push es/cs/ss/ds (06/0e/16/1e)
89 * on the same grounds that they are never used.
90 * cd - int N.
91 * Used by userspace for "int 80" syscall entry. (Other "int N"
92 * cause GP -> SEGV since their IDT gates don't allow calls from CPL 3).
93 * Not supported since kernel's handling of userspace single-stepping
94 * (TF flag) is fragile.
95 * cf - iret. Normally not used in userspace. Doesn't SEGV unless arguments are bad
69 */ 96 */
70#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) 97#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
71static volatile u32 good_insns_32[256 / 32] = { 98static volatile u32 good_insns_32[256 / 32] = {
72 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ 99 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
73 /* ---------------------------------------------- */ 100 /* ---------------------------------------------- */
74 W(0x00, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0) | /* 00 */ 101 W(0x00, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* 00 */
75 W(0x10, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0) , /* 10 */ 102 W(0x10, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0) , /* 10 */
76 W(0x20, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1) | /* 20 */ 103 W(0x20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 20 */
77 W(0x30, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1) , /* 30 */ 104 W(0x30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 30 */
78 W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */ 105 W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */
79 W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 50 */ 106 W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 50 */
80 W(0x60, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 60 */ 107 W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0) | /* 60 */
81 W(0x70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 70 */ 108 W(0x70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 70 */
82 W(0x80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */ 109 W(0x80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */
83 W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 90 */ 110 W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 90 */
84 W(0xa0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* a0 */ 111 W(0xa0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* a0 */
85 W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* b0 */ 112 W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* b0 */
86 W(0xc0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0) | /* c0 */ 113 W(0xc0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0) | /* c0 */
87 W(0xd0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */ 114 W(0xd0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */
88 W(0xe0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* e0 */ 115 W(0xe0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* e0 */
89 W(0xf0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1) /* f0 */ 116 W(0xf0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1) /* f0 */
90 /* ---------------------------------------------- */ 117 /* ---------------------------------------------- */
91 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ 118 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
92}; 119};
@@ -94,27 +121,61 @@ static volatile u32 good_insns_32[256 / 32] = {
94#define good_insns_32 NULL 121#define good_insns_32 NULL
95#endif 122#endif
96 123
97/* Good-instruction tables for 64-bit apps */ 124/* Good-instruction tables for 64-bit apps.
125 *
126 * Genuinely invalid opcodes:
127 * 06,07 - formerly push/pop es
128 * 0e - formerly push cs
129 * 16,17 - formerly push/pop ss
130 * 1e,1f - formerly push/pop ds
131 * 27,2f,37,3f - formerly daa/das/aaa/aas
132 * 60,61 - formerly pusha/popa
133 * 62 - formerly bound. EVEX prefix for AVX512 (not yet supported)
134 * 82 - formerly redundant encoding of Group1
135 * 9a - formerly call seg:ofs
136 * ce - formerly into
137 * d4,d5 - formerly aam/aad
138 * d6 - formerly undocumented salc
139 * ea - formerly jmp seg:ofs
140 *
141 * Opcodes we'll probably never support:
142 * 6c-6f - ins,outs. SEGVs if used in userspace
143 * e4-e7 - in,out imm. SEGVs if used in userspace
144 * ec-ef - in,out acc. SEGVs if used in userspace
145 * cc - int3. SIGTRAP if used in userspace
146 * f1 - int1. SIGTRAP if used in userspace
147 * f4 - hlt. SEGVs if used in userspace
148 * fa - cli. SEGVs if used in userspace
149 * fb - sti. SEGVs if used in userspace
150 *
151 * Opcodes which need some work to be supported:
152 * cd - int N.
153 * Used by userspace for "int 80" syscall entry. (Other "int N"
154 * cause GP -> SEGV since their IDT gates don't allow calls from CPL 3).
155 * Not supported since kernel's handling of userspace single-stepping
156 * (TF flag) is fragile.
157 * cf - iret. Normally not used in userspace. Doesn't SEGV unless arguments are bad
158 */
98#if defined(CONFIG_X86_64) 159#if defined(CONFIG_X86_64)
99static volatile u32 good_insns_64[256 / 32] = { 160static volatile u32 good_insns_64[256 / 32] = {
100 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ 161 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
101 /* ---------------------------------------------- */ 162 /* ---------------------------------------------- */
102 W(0x00, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0) | /* 00 */ 163 W(0x00, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1) | /* 00 */
103 W(0x10, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0) , /* 10 */ 164 W(0x10, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0) , /* 10 */
104 W(0x20, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0) | /* 20 */ 165 W(0x20, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0) | /* 20 */
105 W(0x30, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0) , /* 30 */ 166 W(0x30, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0) , /* 30 */
106 W(0x40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) | /* 40 */ 167 W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */
107 W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 50 */ 168 W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 50 */
108 W(0x60, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* 60 */ 169 W(0x60, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0) | /* 60 */
109 W(0x70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 70 */ 170 W(0x70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 70 */
110 W(0x80, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */ 171 W(0x80, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */
111 W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 90 */ 172 W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1) , /* 90 */
112 W(0xa0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* a0 */ 173 W(0xa0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* a0 */
113 W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* b0 */ 174 W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* b0 */
114 W(0xc0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0) | /* c0 */ 175 W(0xc0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0) | /* c0 */
115 W(0xd0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */ 176 W(0xd0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */
116 W(0xe0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0) | /* e0 */ 177 W(0xe0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0) | /* e0 */
117 W(0xf0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1) /* f0 */ 178 W(0xf0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1) /* f0 */
118 /* ---------------------------------------------- */ 179 /* ---------------------------------------------- */
119 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ 180 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
120}; 181};
@@ -122,49 +183,55 @@ static volatile u32 good_insns_64[256 / 32] = {
122#define good_insns_64 NULL 183#define good_insns_64 NULL
123#endif 184#endif
124 185
125/* Using this for both 64-bit and 32-bit apps */ 186/* Using this for both 64-bit and 32-bit apps.
187 * Opcodes we don't support:
188 * 0f 00 - SLDT/STR/LLDT/LTR/VERR/VERW/-/- group. System insns
189 * 0f 01 - SGDT/SIDT/LGDT/LIDT/SMSW/-/LMSW/INVLPG group.
190 * Also encodes tons of other system insns if mod=11.
191 * Some are in fact non-system: xend, xtest, rdtscp, maybe more
192 * 0f 05 - syscall
193 * 0f 06 - clts (CPL0 insn)
194 * 0f 07 - sysret
195 * 0f 08 - invd (CPL0 insn)
196 * 0f 09 - wbinvd (CPL0 insn)
197 * 0f 0b - ud2
198 * 0f 30 - wrmsr (CPL0 insn) (then why rdmsr is allowed, it's also CPL0 insn?)
199 * 0f 34 - sysenter
200 * 0f 35 - sysexit
201 * 0f 37 - getsec
202 * 0f 78 - vmread (Intel VMX. CPL0 insn)
203 * 0f 79 - vmwrite (Intel VMX. CPL0 insn)
204 * Note: with prefixes, these two opcodes are
205 * extrq/insertq/AVX512 convert vector ops.
206 * 0f ae - group15: [f]xsave,[f]xrstor,[v]{ld,st}mxcsr,clflush[opt],
207 * {rd,wr}{fs,gs}base,{s,l,m}fence.
208 * Why? They are all user-executable.
209 */
126static volatile u32 good_2byte_insns[256 / 32] = { 210static volatile u32 good_2byte_insns[256 / 32] = {
127 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ 211 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
128 /* ---------------------------------------------- */ 212 /* ---------------------------------------------- */
129 W(0x00, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1) | /* 00 */ 213 W(0x00, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1) | /* 00 */
130 W(0x10, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1) , /* 10 */ 214 W(0x10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 10 */
131 W(0x20, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1) | /* 20 */ 215 W(0x20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 20 */
132 W(0x30, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) , /* 30 */ 216 W(0x30, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1) , /* 30 */
133 W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */ 217 W(0x40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 40 */
134 W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 50 */ 218 W(0x50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 50 */
135 W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 60 */ 219 W(0x60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 60 */
136 W(0x70, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1) , /* 70 */ 220 W(0x70, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1) , /* 70 */
137 W(0x80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */ 221 W(0x80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* 80 */
138 W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 90 */ 222 W(0x90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* 90 */
139 W(0xa0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1) | /* a0 */ 223 W(0xa0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1) | /* a0 */
140 W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1) , /* b0 */ 224 W(0xb0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* b0 */
141 W(0xc0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* c0 */ 225 W(0xc0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* c0 */
142 W(0xd0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */ 226 W(0xd0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) , /* d0 */
143 W(0xe0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* e0 */ 227 W(0xe0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) | /* e0 */
144 W(0xf0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0) /* f0 */ 228 W(0xf0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) /* f0 */
145 /* ---------------------------------------------- */ 229 /* ---------------------------------------------- */
146 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ 230 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
147}; 231};
148#undef W 232#undef W
149 233
150/* 234/*
151 * opcodes we'll probably never support:
152 *
153 * 6c-6d, e4-e5, ec-ed - in
154 * 6e-6f, e6-e7, ee-ef - out
155 * cc, cd - int3, int
156 * cf - iret
157 * d6 - illegal instruction
158 * f1 - int1/icebp
159 * f4 - hlt
160 * fa, fb - cli, sti
161 * 0f - lar, lsl, syscall, clts, sysret, sysenter, sysexit, invd, wbinvd, ud2
162 *
163 * invalid opcodes in 64-bit mode:
164 *
165 * 06, 0e, 16, 1e, 27, 2f, 37, 3f, 60-62, 82, c4-c5, d4-d5
166 * 63 - we support this opcode in x86_64 but not in i386.
167 *
168 * opcodes we may need to refine support for: 235 * opcodes we may need to refine support for:
169 * 236 *
170 * 0f - 2-byte instructions: For many of these instructions, the validity 237 * 0f - 2-byte instructions: For many of these instructions, the validity
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