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1 /* ----------------------------------------------------------------------- *
2  *
3  *   Copyright 2009 Erwan Velu - All Rights Reserved
4  *
5  *   Permission is hereby granted, free of charge, to any person
6  *   obtaining a copy of this software and associated documentation
7  *   files (the "Software"), to deal in the Software without
8  *   restriction, including without limitation the rights to use,
9  *   copy, modify, merge, publish, distribute, sublicense, and/or
10  *   sell copies of the Software, and to permit persons to whom
11  *   the Software is furnished to do so, subject to the following
12  *   conditions:
13  *
14  *   The above copyright notice and this permission notice shall
15  *   be included in all copies or substantial portions of the Software.
16  *
17  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
19  *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20  *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
21  *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22  *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23  *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24  *   OTHER DEALINGS IN THE SOFTWARE.
25  *
26  * -----------------------------------------------------------------------
27 */
28 
29 #include "hdt-cli.h"
30 #include "hdt-common.h"
31 #include <stdio.h>
32 #include <string.h>
33 #include <stdlib.h>
34 #include <errno.h>
35 #include <acpi/acpi.h>
36 
37 /* Print ACPI's table header in a defined formating */
show_header(void * address,s_acpi_description_header * h)38 static void show_header(void *address, s_acpi_description_header * h)
39 {
40     more_printf("%-4s v%03x %-6s %-8s 0x%08x %-7s 0x%08x @ 0x%p\n",
41 		h->signature, h->revision, h->oem_id, h->oem_table_id,
42 		h->oem_revision, h->creator_id, h->creator_revision, address)
43 }
44 
45 /* That's an helper to visualize columns*/
show_table_separator(void)46 static void show_table_separator(void)
47 {
48     more_printf
49 	("----|----|------|--------|----------|-------|-----------|--------------------\n");
50 }
51 
52 /* Display the main header before displaying the ACPI tables */
show_table_name(void)53 static void show_table_name(void)
54 {
55     more_printf
56 	("ACPI rev  oem    table_id oem_rev    creator creat_rev  @ address \n");
57     show_table_separator();
58 }
59 
60 /* called by "show acpi" */
main_show_acpi(int argc __unused,char ** argv __unused,struct s_hardware * hardware)61 void main_show_acpi(int argc __unused, char **argv __unused,
62 		    struct s_hardware *hardware)
63 {
64     reset_more_printf();
65 
66     if (hardware->is_acpi_valid == false) {
67 	more_printf("No ACPI Tables detected\n");
68 	return;
69     }
70 
71     show_table_name();
72 
73     /* RSDP tables aren't using the same headers as the other
74      * So let's use a dedicated rendering */
75     if (hardware->acpi.rsdp.valid) {
76 	s_rsdp *r = &hardware->acpi.rsdp;
77 	more_printf
78 	    ("RSDP v%03x %-6s                                        @ %p\n",
79 	     r->revision, r->oem_id, r->address);
80     }
81 
82     if (hardware->acpi.rsdt.valid)
83 	show_header(hardware->acpi.rsdt.address,
84 		       &hardware->acpi.rsdt.header);
85 
86     if (hardware->acpi.xsdt.valid)
87 	show_header(hardware->acpi.xsdt.address,
88 		       &hardware->acpi.xsdt.header);
89 
90     if (hardware->acpi.fadt.valid)
91 	show_header(hardware->acpi.fadt.address, &hardware->acpi.fadt.header);
92 
93     if (hardware->acpi.dsdt.valid)
94 	show_header(hardware->acpi.dsdt.address, &hardware->acpi.dsdt.header);
95 
96     /* SSDT includes many optional tables, let's display them */
97     for (int i = 0; i < hardware->acpi.ssdt_count; i++) {
98 	if ((hardware->acpi.ssdt[i] != NULL) && (hardware->acpi.ssdt[i]->valid))
99 	    show_header(hardware->acpi.ssdt[i]->address,
100 			&hardware->acpi.ssdt[i]->header);
101     }
102 
103     if (hardware->acpi.sbst.valid)
104 	show_header(hardware->acpi.sbst.address, &hardware->acpi.sbst.header);
105 
106     if (hardware->acpi.ecdt.valid)
107 	show_header(hardware->acpi.ecdt.address, &hardware->acpi.ecdt.header);
108 
109     if (hardware->acpi.hpet.valid)
110 	show_header(hardware->acpi.hpet.address, &hardware->acpi.hpet.header);
111 
112     if (hardware->acpi.tcpa.valid)
113 	show_header(hardware->acpi.tcpa.address, &hardware->acpi.tcpa.header);
114 
115     if (hardware->acpi.mcfg.valid)
116 	show_header(hardware->acpi.mcfg.address, &hardware->acpi.mcfg.header);
117 
118     if (hardware->acpi.slic.valid)
119 	show_header(hardware->acpi.slic.address, &hardware->acpi.slic.header);
120 
121     if (hardware->acpi.boot.valid)
122 	show_header(hardware->acpi.boot.address, &hardware->acpi.boot.header);
123 
124     /* FACS isn't having the same headers, let's use a dedicated rendering */
125     if (hardware->acpi.facs.valid) {
126 	s_facs *fa = &hardware->acpi.facs;
127 	more_printf
128 	    ("FACS                                                    @ 0x%p\n",
129 	     fa->address);
130     }
131 
132     if (hardware->acpi.madt.valid)
133 	show_header(hardware->acpi.madt.address, &hardware->acpi.madt.header);
134 
135     more_printf("\nLocal APIC at 0x%08x\n", hardware->acpi.madt.local_apic_address);
136 }
137 
138 /* Let's display the Processor Local APIC configuration */
show_local_apic(s_madt * madt)139 static void show_local_apic(s_madt * madt)
140 {
141     if (madt->processor_local_apic_count == 0) {
142 	more_printf("No Processor Local APIC found\n");
143 	return;
144     }
145 
146     /* For all detected logical CPU */
147     for (int i = 0; i < madt->processor_local_apic_count; i++) {
148 	s_processor_local_apic *sla = &madt->processor_local_apic[i];
149 	char buffer[8];
150 	memset(buffer, 0, sizeof(buffer));
151 	strcpy(buffer, "disable");
152 	/* Let's check if the flags reports the cpu as enabled */
153 	if ((sla->flags & PROCESSOR_LOCAL_APIC_ENABLE) ==
154 	    PROCESSOR_LOCAL_APIC_ENABLE)
155 	    strcpy(buffer, "enable");
156 	more_printf("CPU #%u, LAPIC (acpi_id[0x%02x] apic_id[0x%02x]) %s\n",
157 		    sla->apic_id, sla->acpi_id, sla->apic_id, buffer);
158     }
159 }
160 
161 /* Display the local apic NMI configuration */
show_local_apic_nmi(s_madt * madt)162 static void show_local_apic_nmi(s_madt * madt)
163 {
164     if (madt->local_apic_nmi_count == 0) {
165 	more_printf("No Local APIC NMI found\n");
166 	return;
167     }
168 
169     for (int i = 0; i < madt->local_apic_nmi_count; i++) {
170 	s_local_apic_nmi *slan = &madt->local_apic_nmi[i];
171 	char buffer[20];
172 	more_printf("LAPIC_NMI (acpi_id[0x%02x] %s lint(0x%02x))\n",
173 		    slan->acpi_processor_id, flags_to_string(buffer,
174 							     slan->flags),
175 		    slan->local_apic_lint);
176     }
177 }
178 
179 /* Display the IO APIC configuration */
show_io_apic(s_madt * madt)180 static void show_io_apic(s_madt * madt)
181 {
182     if (madt->io_apic_count == 0) {
183 	more_printf("No IO APIC found\n");
184 	return;
185     }
186 
187     /* For all IO APICS */
188     for (int i = 0; i < madt->io_apic_count; i++) {
189 	s_io_apic *sio = &madt->io_apic[i];
190 	char buffer[15];
191 	memset(buffer, 0, sizeof(buffer));
192 	/* GSI base reports the GSI configuration
193 	 * Let's interpret it as string */
194 	switch (sio->global_system_interrupt_base) {
195 	case 0:
196 	    strcpy(buffer, "GSI 0-23");
197 	    break;
198 	case 24:
199 	    strcpy(buffer, "GSI 24-39");
200 	    break;
201 	case 40:
202 	    strcpy(buffer, "GSI 40-55");
203 	    break;
204 	default:
205 	    strcpy(buffer, "GSI Unknown");
206 	    break;
207 	}
208 
209 	more_printf("IO_APIC[%d] : apic_id[0x%02x] address[0x%08x] %s\n",
210 		    i, sio->io_apic_id, sio->io_apic_address, buffer);
211     }
212 }
213 
214 /* Display the interrupt source override configuration */
show_interrupt_source_override(s_madt * madt)215 static void show_interrupt_source_override(s_madt * madt)
216 {
217     if (madt->interrupt_source_override_count == 0) {
218 	more_printf("No interrupt source override found\n");
219 	return;
220     }
221 
222     /* Let's process each interrupt source override */
223     for (int i = 0; i < madt->interrupt_source_override_count; i++) {
224 	s_interrupt_source_override *siso = &madt->interrupt_source_override[i];
225 	char buffer[20];
226 	char bus_type[10];
227 	memset(bus_type, 0, sizeof(bus_type));
228 	/* Spec report bus type 0 as ISA */
229 	if (siso->bus == 0)
230 	    strcpy(bus_type, "ISA");
231 	else
232 	    strcpy(bus_type, "unknown");
233 
234 	more_printf("INT_SRC_OVR (bus %s (%d) bus_irq %d global_irq %d %s)\n",
235 		    bus_type, siso->bus, siso->source,
236 		    siso->global_system_interrupt, flags_to_string(buffer,
237 								   siso->
238 								   flags));
239     }
240 }
241 
242 /* Display the apic configuration
243  * This is called by acpi> show apic */
show_acpi_apic(int argc __unused,char ** argv __unused,struct s_hardware * hardware)244 static void show_acpi_apic(int argc __unused, char **argv __unused,
245 			   struct s_hardware *hardware)
246 {
247     if (hardware->is_acpi_valid == false) {
248 	more_printf("No ACPI Tables detected\n");
249 	return;
250     }
251 
252     s_madt *madt = &hardware->acpi.madt;
253 
254     if (madt->valid == false) {
255 	more_printf("No APIC (MADT) table found\n");
256 	return;
257     }
258 
259     more_printf("Local APIC at 0x%08x\n", madt->local_apic_address);
260     show_local_apic(madt);
261     show_local_apic_nmi(madt);
262     show_io_apic(madt);
263     show_interrupt_source_override(madt);
264 }
265 
266 struct cli_callback_descr list_acpi_show_modules[] = {
267     {
268      .name = "apic",
269      .exec = show_acpi_apic,
270      .nomodule = false,
271      },
272     {
273      .name = NULL,
274      .exec = NULL,
275      .nomodule = false,
276      },
277 };
278 
279 struct cli_module_descr acpi_show_modules = {
280     .modules = list_acpi_show_modules,
281     .default_callback = main_show_acpi,
282 };
283 
284 struct cli_mode_descr acpi_mode = {
285     .mode = ACPI_MODE,
286     .name = CLI_ACPI,
287     .default_modules = NULL,
288     .show_modules = &acpi_show_modules,
289     .set_modules = NULL,
290 };
291