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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
2 | * Copyright (C) 2005 Jakub Jermar |
3 | * Copyright (C) 2005 Jakub Vana |
3 | * Copyright (C) 2005 Jakub Vana |
4 | * All rights reserved. |
4 | * All rights reserved. |
5 | * |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
8 | * are met: |
9 | * |
9 | * |
10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
15 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
16 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
17 | * |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | * |
28 | * |
29 | */ |
29 | */ |
30 | 30 | ||
31 | #include <arch/interrupt.h> |
31 | #include <arch/interrupt.h> |
32 | #include <panic.h> |
32 | #include <panic.h> |
33 | #include <print.h> |
33 | #include <print.h> |
34 | #include <console/console.h> |
34 | #include <console/console.h> |
35 | #include <arch/types.h> |
35 | #include <arch/types.h> |
36 | #include <arch/asm.h> |
36 | #include <arch/asm.h> |
37 | #include <arch/barrier.h> |
37 | #include <arch/barrier.h> |
38 | #include <arch/register.h> |
38 | #include <arch/register.h> |
39 | #include <arch/drivers/it.h> |
39 | #include <arch/drivers/it.h> |
40 | #include <arch.h> |
40 | #include <arch.h> |
41 | #include <symtab.h> |
41 | #include <symtab.h> |
42 | #include <debug.h> |
42 | #include <debug.h> |
43 | #include <syscall/syscall.h> |
43 | #include <syscall/syscall.h> |
44 | #include <print.h> |
44 | #include <print.h> |
45 | 45 | ||
46 | #define VECTORS_64_BUNDLE 20 |
46 | #define VECTORS_64_BUNDLE 20 |
47 | #define VECTORS_16_BUNDLE 48 |
47 | #define VECTORS_16_BUNDLE 48 |
48 | #define VECTORS_16_BUNDLE_START 0x5000 |
48 | #define VECTORS_16_BUNDLE_START 0x5000 |
49 | #define VECTOR_MAX 0x7f00 |
49 | #define VECTOR_MAX 0x7f00 |
50 | 50 | ||
51 | #define BUNDLE_SIZE 16 |
51 | #define BUNDLE_SIZE 16 |
52 | 52 | ||
53 | char *vector_names_64_bundle[VECTORS_64_BUNDLE] = { |
53 | char *vector_names_64_bundle[VECTORS_64_BUNDLE] = { |
54 | "VHPT Translation vector", |
54 | "VHPT Translation vector", |
55 | "Instruction TLB vector", |
55 | "Instruction TLB vector", |
56 | "Data TLB vector", |
56 | "Data TLB vector", |
57 | "Alternate Instruction TLB vector", |
57 | "Alternate Instruction TLB vector", |
58 | "Alternate Data TLB vector", |
58 | "Alternate Data TLB vector", |
59 | "Data Nested TLB vector", |
59 | "Data Nested TLB vector", |
60 | "Instruction Key Miss vector", |
60 | "Instruction Key Miss vector", |
61 | "Data Key Miss vector", |
61 | "Data Key Miss vector", |
62 | "Dirty-Bit vector", |
62 | "Dirty-Bit vector", |
63 | "Instruction Access-Bit vector", |
63 | "Instruction Access-Bit vector", |
64 | "Data Access-Bit vector" |
64 | "Data Access-Bit vector" |
65 | "Break Instruction vector", |
65 | "Break Instruction vector", |
66 | "External Interrupt vector" |
66 | "External Interrupt vector" |
67 | "Reserved", |
67 | "Reserved", |
68 | "Reserved", |
68 | "Reserved", |
69 | "Reserved", |
69 | "Reserved", |
70 | "Reserved", |
70 | "Reserved", |
71 | "Reserved", |
71 | "Reserved", |
72 | "Reserved", |
72 | "Reserved", |
73 | "Reserved" |
73 | "Reserved" |
74 | }; |
74 | }; |
75 | 75 | ||
76 | char *vector_names_16_bundle[VECTORS_16_BUNDLE] = { |
76 | char *vector_names_16_bundle[VECTORS_16_BUNDLE] = { |
77 | "Page Not Present vector", |
77 | "Page Not Present vector", |
78 | "Key Permission vector", |
78 | "Key Permission vector", |
79 | "Instruction Access rights vector", |
79 | "Instruction Access rights vector", |
80 | "Data Access Rights vector", |
80 | "Data Access Rights vector", |
81 | "General Exception vector", |
81 | "General Exception vector", |
82 | "Disabled FP-Register vector", |
82 | "Disabled FP-Register vector", |
83 | "NaT Consumption vector", |
83 | "NaT Consumption vector", |
84 | "Speculation vector", |
84 | "Speculation vector", |
85 | "Reserved", |
85 | "Reserved", |
86 | "Debug vector", |
86 | "Debug vector", |
87 | "Unaligned Reference vector", |
87 | "Unaligned Reference vector", |
88 | "Unsupported Data Reference vector", |
88 | "Unsupported Data Reference vector", |
89 | "Floating-point Fault vector", |
89 | "Floating-point Fault vector", |
90 | "Floating-point Trap vector", |
90 | "Floating-point Trap vector", |
91 | "Lower-Privilege Transfer Trap vector", |
91 | "Lower-Privilege Transfer Trap vector", |
92 | "Taken Branch Trap vector", |
92 | "Taken Branch Trap vector", |
93 | "Single STep Trap vector", |
93 | "Single STep Trap vector", |
94 | "Reserved", |
94 | "Reserved", |
95 | "Reserved", |
95 | "Reserved", |
96 | "Reserved", |
96 | "Reserved", |
97 | "Reserved", |
97 | "Reserved", |
98 | "Reserved", |
98 | "Reserved", |
99 | "Reserved", |
99 | "Reserved", |
100 | "Reserved", |
100 | "Reserved", |
101 | "Reserved", |
101 | "Reserved", |
102 | "IA-32 Exception vector", |
102 | "IA-32 Exception vector", |
103 | "IA-32 Intercept vector", |
103 | "IA-32 Intercept vector", |
104 | "IA-32 Interrupt vector", |
104 | "IA-32 Interrupt vector", |
105 | "Reserved", |
105 | "Reserved", |
106 | "Reserved", |
106 | "Reserved", |
107 | "Reserved" |
107 | "Reserved" |
108 | }; |
108 | }; |
109 | 109 | ||
110 | static char *vector_to_string(__u16 vector); |
110 | static char *vector_to_string(__u16 vector); |
111 | static void dump_interrupted_context(istate_t *istate); |
111 | static void dump_interrupted_context(istate_t *istate); |
112 | 112 | ||
113 | char *vector_to_string(__u16 vector) |
113 | char *vector_to_string(__u16 vector) |
114 | { |
114 | { |
115 | ASSERT(vector <= VECTOR_MAX); |
115 | ASSERT(vector <= VECTOR_MAX); |
116 | 116 | ||
117 | if (vector >= VECTORS_16_BUNDLE_START) |
117 | if (vector >= VECTORS_16_BUNDLE_START) |
118 | return vector_names_16_bundle[(vector-VECTORS_16_BUNDLE_START)/(16*BUNDLE_SIZE)]; |
118 | return vector_names_16_bundle[(vector-VECTORS_16_BUNDLE_START)/(16*BUNDLE_SIZE)]; |
119 | else |
119 | else |
120 | return vector_names_64_bundle[vector/(64*BUNDLE_SIZE)]; |
120 | return vector_names_64_bundle[vector/(64*BUNDLE_SIZE)]; |
121 | } |
121 | } |
122 | 122 | ||
123 | void dump_interrupted_context(istate_t *istate) |
123 | void dump_interrupted_context(istate_t *istate) |
124 | { |
124 | { |
125 | char *ifa, *iipa, *iip; |
125 | char *ifa, *iipa, *iip; |
126 | 126 | ||
127 | ifa = get_symtab_entry(istate->cr_ifa); |
127 | ifa = get_symtab_entry(istate->cr_ifa); |
128 | iipa = get_symtab_entry(istate->cr_iipa); |
128 | iipa = get_symtab_entry(istate->cr_iipa); |
129 | iip = get_symtab_entry(istate->cr_iip); |
129 | iip = get_symtab_entry(istate->cr_iip); |
130 | 130 | ||
131 | putchar('\n'); |
131 | putchar('\n'); |
132 | printf("Interrupted context dump:\n"); |
132 | printf("Interrupted context dump:\n"); |
133 | printf("ar.bsp=%P\tar.bspstore=%P\n", istate->ar_bsp, istate->ar_bspstore); |
133 | printf("ar.bsp=%P\tar.bspstore=%P\n", istate->ar_bsp, istate->ar_bspstore); |
134 | printf("ar.rnat=%Q\tar.rsc=%Q\n", istate->ar_rnat, istate->ar_rsc); |
134 | printf("ar.rnat=%Q\tar.rsc=%Q\n", istate->ar_rnat, istate->ar_rsc); |
135 | printf("ar.ifs=%Q\tar.pfs=%Q\n", istate->ar_ifs, istate->ar_pfs); |
135 | printf("ar.ifs=%Q\tar.pfs=%Q\n", istate->ar_ifs, istate->ar_pfs); |
136 | printf("cr.isr=%Q\tcr.ipsr=%Q\t\n", istate->cr_isr.value, istate->cr_ipsr); |
136 | printf("cr.isr=%Q\tcr.ipsr=%Q\t\n", istate->cr_isr.value, istate->cr_ipsr); |
137 | 137 | ||
138 | printf("cr.iip=%Q, #%d\t(%s)\n", istate->cr_iip, istate->cr_isr.ei ,iip ? iip : "?"); |
138 | printf("cr.iip=%Q, #%d\t(%s)\n", istate->cr_iip, istate->cr_isr.ei ,iip ? iip : "?"); |
139 | printf("cr.iipa=%Q\t(%s)\n", istate->cr_iipa, iipa ? iipa : "?"); |
139 | printf("cr.iipa=%Q\t(%s)\n", istate->cr_iipa, iipa ? iipa : "?"); |
140 | printf("cr.ifa=%Q\t(%s)\n", istate->cr_ifa, ifa ? ifa : "?"); |
140 | printf("cr.ifa=%Q\t(%s)\n", istate->cr_ifa, ifa ? ifa : "?"); |
141 | } |
141 | } |
142 | 142 | ||
143 | void general_exception(__u64 vector, istate_t *istate) |
143 | void general_exception(__u64 vector, istate_t *istate) |
144 | { |
144 | { |
145 | char *desc = ""; |
145 | char *desc = ""; |
146 | 146 | ||
147 | dump_interrupted_context(istate); |
147 | dump_interrupted_context(istate); |
148 | 148 | ||
149 | switch (istate->cr_isr.ge_code) { |
149 | switch (istate->cr_isr.ge_code) { |
150 | case GE_ILLEGALOP: |
150 | case GE_ILLEGALOP: |
151 | desc = "Illegal Operation fault"; |
151 | desc = "Illegal Operation fault"; |
152 | break; |
152 | break; |
153 | case GE_PRIVOP: |
153 | case GE_PRIVOP: |
154 | desc = "Privileged Operation fault"; |
154 | desc = "Privileged Operation fault"; |
155 | break; |
155 | break; |
156 | case GE_PRIVREG: |
156 | case GE_PRIVREG: |
157 | desc = "Privileged Register fault"; |
157 | desc = "Privileged Register fault"; |
158 | break; |
158 | break; |
159 | case GE_RESREGFLD: |
159 | case GE_RESREGFLD: |
160 | desc = "Reserved Register/Field fault"; |
160 | desc = "Reserved Register/Field fault"; |
161 | break; |
161 | break; |
162 | case GE_DISBLDISTRAN: |
162 | case GE_DISBLDISTRAN: |
163 | desc = "Disabled Instruction Set Transition fault"; |
163 | desc = "Disabled Instruction Set Transition fault"; |
164 | break; |
164 | break; |
165 | case GE_ILLEGALDEP: |
165 | case GE_ILLEGALDEP: |
166 | desc = "Illegal Dependency fault"; |
166 | desc = "Illegal Dependency fault"; |
167 | break; |
167 | break; |
168 | default: |
168 | default: |
169 | desc = "unknown"; |
169 | desc = "unknown"; |
170 | break; |
170 | break; |
171 | } |
171 | } |
172 | 172 | ||
173 | panic("General Exception (%s)\n", desc); |
173 | panic("General Exception (%s)\n", desc); |
174 | } |
174 | } |
175 | 175 | ||
176 | /** Handle syscall. */ |
176 | /** Handle syscall. */ |
177 | int break_instruction(__u64 vector, istate_t *istate) |
177 | int break_instruction(__u64 vector, istate_t *istate) |
178 | { |
178 | { |
179 | /* |
179 | /* |
180 | * Move to next instruction after BREAK. |
180 | * Move to next instruction after BREAK. |
181 | */ |
181 | */ |
182 | if (istate->cr_ipsr.ri == 2) { |
182 | if (istate->cr_ipsr.ri == 2) { |
183 | istate->cr_ipsr.ri = 0; |
183 | istate->cr_ipsr.ri = 0; |
184 | istate->cr_iip += 16; |
184 | istate->cr_iip += 16; |
185 | } else { |
185 | } else { |
186 | istate->cr_ipsr.ri++; |
186 | istate->cr_ipsr.ri++; |
187 | } |
187 | } |
188 | 188 | ||
189 | if (istate->in3 < SYSCALL_END) |
189 | if (istate->in4 < SYSCALL_END) |
190 | return syscall_table[istate->in3](istate->in0, istate->in1, istate->in2); |
190 | return syscall_table[istate->in4](istate->in0, istate->in1, istate->in2, istate->in3); |
191 | else |
191 | else |
192 | panic("Undefined syscall %d", istate->in3); |
192 | panic("Undefined syscall %d", istate->in4); |
193 | 193 | ||
194 | return -1; |
194 | return -1; |
195 | } |
195 | } |
196 | 196 | ||
197 | void universal_handler(__u64 vector, istate_t *istate) |
197 | void universal_handler(__u64 vector, istate_t *istate) |
198 | { |
198 | { |
199 | dump_interrupted_context(istate); |
199 | dump_interrupted_context(istate); |
200 | panic("Interruption: %W (%s)\n", (__u16) vector, vector_to_string(vector)); |
200 | panic("Interruption: %W (%s)\n", (__u16) vector, vector_to_string(vector)); |
201 | } |
201 | } |
202 | 202 | ||
203 | void external_interrupt(__u64 vector, istate_t *istate) |
203 | void external_interrupt(__u64 vector, istate_t *istate) |
204 | { |
204 | { |
205 | cr_ivr_t ivr; |
205 | cr_ivr_t ivr; |
206 | 206 | ||
207 | ivr.value = ivr_read(); |
207 | ivr.value = ivr_read(); |
208 | srlz_d(); |
208 | srlz_d(); |
209 | 209 | ||
210 | switch(ivr.vector) { |
210 | switch(ivr.vector) { |
211 | case INTERRUPT_TIMER: |
211 | case INTERRUPT_TIMER: |
212 | it_interrupt(); |
212 | it_interrupt(); |
213 | break; |
213 | break; |
214 | case INTERRUPT_SPURIOUS: |
214 | case INTERRUPT_SPURIOUS: |
215 | printf("cpu%d: spurious interrupt\n", CPU->id); |
215 | printf("cpu%d: spurious interrupt\n", CPU->id); |
216 | break; |
216 | break; |
217 | default: |
217 | default: |
218 | panic("\nUnhandled External Interrupt Vector %d\n", ivr.vector); |
218 | panic("\nUnhandled External Interrupt Vector %d\n", ivr.vector); |
219 | break; |
219 | break; |
220 | } |
220 | } |
221 | } |
221 | } |
222 | 222 |