Chameleon

View acpi_patcher.c

1/*␊
2 * Copyright 2008 mackerintel␊
3 */␊
4␊
5#include "libsaio.h"␊
6#include "boot.h"␊
7#include "bootstruct.h"␊
8#include "acpi.h"␊
9#include "efi_tables.h"␊
10#include "fake_efi.h"␊
11#include "acpi_patcher.h"␊
12#include "platform.h"␊
13#include "cpu.h"␊
14#include "aml_generator.h"␊
15␊
16#ifndef DEBUG_ACPI␊
17#define DEBUG_ACPI 0␊
18#endif␊
19␊
20#if DEBUG_ACPI==2␊
21#define DBG(x...) {printf(x); sleep(1);}␊
22#elif DEBUG_ACPI==1␊
23#define DBG(x...) printf(x)␊
24#else␊
25#define DBG(x...)␊
26#endif␊
27␊
28// Slice: New signature compare function␊
29boolean_t tableSign(char *table, const char *sgn)␊
30{␊
31␉int i;␊
32␉for (i=0; i<4; i++) {␊
33␉␉if ((table[i] &~0x20) != (sgn[i] &~0x20)) {␊
34␉␉␉return false;␊
35␉␉}␊
36␉}␊
37␉return true;␊
38}␊
39␊
40/* Gets the ACPI 1.0 RSDP address */␊
41static struct acpi_2_rsdp* getAddressOfAcpiTable()␊
42{␊
43 /* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */␊
44␉␊
45 void *acpi_addr = (void*)ACPI_RANGE_START;␊
46 for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)␊
47 {␊
48 if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊
49 {␊
50 uint8_t csum = checksum8(acpi_addr, 20);␊
51 if(csum == 0)␊
52 {␊
53 // Only return the table if it is a true version 1.0 table (Revision 0)␊
54 if(((struct acpi_2_rsdp*)acpi_addr)->Revision == 0)␊
55 return acpi_addr;␊
56 }␊
57 }␊
58 }␊
59 return NULL;␊
60}␊
61␊
62/* Gets the ACPI 2.0 RSDP address */␊
63static struct acpi_2_rsdp* getAddressOfAcpi20Table()␊
64{␊
65 /* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */␊
66␉␊
67 void *acpi_addr = (void*)ACPI_RANGE_START;␊
68 for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)␊
69 {␊
70 if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊
71 {␊
72 uint8_t csum = checksum8(acpi_addr, 20);␊
73␉␉␉␊
74 /* Only assume this is a 2.0 or better table if the revision is greater than 0␊
75 * NOTE: ACPI 3.0 spec only seems to say that 1.0 tables have revision 1␊
76 * and that the current revision is 2.. I am going to assume that rev > 0 is 2.0.␊
77 */␊
78␉␉␉␊
79 if(csum == 0 && (((struct acpi_2_rsdp*)acpi_addr)->Revision > 0))␊
80 {␊
81 uint8_t csum2 = checksum8(acpi_addr, sizeof(struct acpi_2_rsdp));␊
82 if(csum2 == 0)␊
83 return acpi_addr;␊
84 }␊
85 }␊
86 }␊
87 return NULL;␊
88}␊
89/** The folowing ACPI Table search algo. should be reused anywhere needed:*/␊
90int search_and_get_acpi_fd(const char * filename, const char ** outDirspec)␊
91{␊
92␉int fd = 0;␊
93␉char dirSpec[512] = "";␊
94␉␊
95␉// Try finding 'filename' in the usual places␊
96␉// Start searching any potential location for ACPI Table␊
97␉sprintf(dirSpec, "%s", filename); ␊
98␉fd = open(dirSpec, 0);␊
99␉if (fd < 0)␊
100␉{␉␊
101␉␉sprintf(dirSpec, "/Extra/%s", filename); ␊
102␉␉fd = open(dirSpec, 0);␊
103␉␉if (fd < 0)␊
104␉␉{␊
105␉␉␉sprintf(dirSpec, "bt(0,0)/Extra/%s", filename);␊
106␉␉␉fd = open(dirSpec, 0);␊
107␉␉}␊
108␉}␊
109␊
110␉if (fd < 0)␊
111␉{␊
112␉␉// NOT FOUND:␊
113␉␉verbose("ACPI table not found: %s\n", filename);␊
114␉␉*dirSpec = '\0';␊
115␉}␊
116␊
117␉if (outDirspec) *outDirspec = dirSpec; ␊
118␉return fd;␊
119}␊
120␊
121␊
122void *loadACPITable (const char * filename)␊
123{␊
124␉void *tableAddr;␊
125␉const char * dirspec=NULL;␊
126␉␊
127␉int fd = search_and_get_acpi_fd(filename, &dirspec);␊
128␉␊
129␉if (fd>=0)␊
130␉{␊
131␉␉tableAddr=(void*)AllocateKernelMemory(file_size (fd));␊
132␉␉if (tableAddr)␊
133␉␉{␊
134␉␉␉if (read (fd, tableAddr, file_size (fd))!=file_size (fd))␊
135␉␉␉{␊
136␉␉␉␉printf("Couldn't read table %s\n",dirspec);␊
137␉␉␉␉free (tableAddr);␊
138␉␉␉␉close (fd);␊
139␉␉␉␉return NULL;␊
140␉␉␉}␊
141␉␉␉␊
142␉␉␉DBG("Table %s read and stored at: %x\n", dirspec, tableAddr);␊
143␉␉␉close (fd);␊
144␉␉␉return tableAddr;␊
145␉␉}␊
146␉␉close (fd);␊
147␉␉printf("Couldn't allocate memory for table \n", dirspec);␊
148␉} ␊
149␉//printf("Couldn't find table %s\n", filename);␊
150␉return NULL;␊
151}␊
152␊
153uint8_t␉acpi_cpu_count = 0;␊
154char* acpi_cpu_name[32];␊
155uint32_t acpi_cpu_p_blk = 0;␊
156␊
157void get_acpi_cpu_names(unsigned char* dsdt, uint32_t length)␊
158{␊
159␉uint32_t i;␊
160␉␊
161␉for (i=0; i<length-7; i++) ␊
162␉{␊
163␉␉if (dsdt[i] == 0x5B && dsdt[i+1] == 0x83) // ProcessorOP␊
164␉␉{␊
165␉␉␉uint32_t offset = i + 3 + (dsdt[i+2] >> 6);␊
166␉␉␉␊
167␉␉␉bool add_name = true;␊
168␊
169␉␉␉uint8_t j;␊
170␉␉␉␊
171␉␉␉for (j=0; j<4; j++) ␊
172␉␉␉{␊
173␉␉␉␉char c = dsdt[offset+j];␊
174␉␉␉␉␊
175␉␉␉␉if (!aml_isvalidchar(c)) ␊
176␉␉␉␉{␊
177␉␉␉␉␉add_name = false;␊
178␉␉␉␉␉verbose("Invalid character found in ProcessorOP 0x%x!\n", c);␊
179␉␉␉␉␉break;␊
180␉␉␉␉}␊
181␉␉␉}␊
182␉␉␉␊
183␉␉␉if (add_name) ␊
184␉␉␉{␊
185␉␉␉␉acpi_cpu_name[acpi_cpu_count] = malloc(4);␊
186␉␉␉␉memcpy(acpi_cpu_name[acpi_cpu_count], dsdt+offset, 4);␊
187␉␉␉␉i = offset + 5;␊
188 ␊
189 if (acpi_cpu_count == 0)␊
190 acpi_cpu_p_blk = dsdt[i] | (dsdt[i+1] << 8);␊
191␉␉␉␉␊
192␉␉␉␉verbose("Found ACPI CPU: %c%c%c%c\n", acpi_cpu_name[acpi_cpu_count][0], acpi_cpu_name[acpi_cpu_count][1], acpi_cpu_name[acpi_cpu_count][2], acpi_cpu_name[acpi_cpu_count][3]);␊
193␉␉␉␉␊
194␉␉␉␉if (++acpi_cpu_count == 32) return;␊
195␉␉␉}␊
196␉␉}␊
197␉}␊
198}␊
199␊
200struct acpi_2_ssdt *generate_cst_ssdt(struct acpi_2_fadt* fadt)␊
201{␊
202␉char ssdt_header[] =␊
203␉{␊
204␉␉0x53, 0x53, 0x44, 0x54, 0xE7, 0x00, 0x00, 0x00, /* SSDT.... */␊
205␉␉0x01, 0x17, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x41, /* ..PmRefA */␊
206␉␉0x43, 0x70, 0x75, 0x43, 0x73, 0x74, 0x00, 0x00, /* CpuCst.. */␊
207␉␉0x00, 0x10, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* ....INTL */␊
208␉␉0x31, 0x03, 0x10, 0x20 ␉␉␉␉␉␉␉/* 1.._␉␉*/␊
209␉};␊
210␉␊
211␉char resource_template_register_fixedhw[] = ␊
212␉{␊
213␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F, ␊
214␉␉0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ␊
215␉␉0x00, 0x00, 0x01, 0x79, 0x00␊
216␉};␊
217 ␊
218 char resource_template_register_systemio[] = ␊
219␉{␊
220␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x01,␊
221 0x08, 0x00, 0x00, 0x15, 0x04, 0x00, 0x00, 0x00,␊
222 0x00, 0x00, 0x00, 0x79, 0x00, ␉␊
223 };␊
224␊
225␉if (Platform.CPU.Vendor != 0x756E6547) {␊
226␉␉verbose ("Not an Intel platform: C-States will not be generated !!!\n");␊
227␉␉return NULL;␊
228␉}␊
229␉␊
230␉if (fadt == NULL) {␊
231␉␉verbose ("FACP not exists: C-States will not be generated !!!\n");␊
232␉␉return NULL;␊
233␉}␊
234␉␊
235␉struct acpi_2_dsdt* dsdt = (void*)fadt->DSDT;␊
236␉␊
237␉if (dsdt == NULL) {␊
238␉␉verbose ("DSDT not found: C-States will not be generated !!!\n");␊
239␉␉return NULL;␊
240␉}␊
241␉␊
242␉if (acpi_cpu_count == 0) ␊
243␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
244␉␊
245␉if (acpi_cpu_count > 0) ␊
246␉{␊
247␉␉bool c2_enabled = false;␊
248␉␉bool c3_enabled = false;␊
249␉␉bool c4_enabled = false;␊
250 bool cst_using_sustemio = false;␊
251␉␉␊
252␉␉getBoolForKey(kEnableC2State, &c2_enabled, &bootInfo->chameleonConfig);␊
253␉␉getBoolForKey(kEnableC3State, &c3_enabled, &bootInfo->chameleonConfig);␊
254␉␉getBoolForKey(kEnableC4State, &c4_enabled, &bootInfo->chameleonConfig);␊
255 getBoolForKey(kCSTUsingSystemIO, &cst_using_sustemio, &bootInfo->chameleonConfig);␊
256␉␉␊
257␉␉c2_enabled = c2_enabled | (fadt->C2_Latency < 100);␊
258␉␉c3_enabled = c3_enabled | (fadt->C3_Latency < 1000);␊
259␊
260␉␉unsigned char cstates_count = 1 + (c2_enabled ? 1 : 0) + (c3_enabled ? 1 : 0);␊
261␉␉␊
262␉␉struct aml_chunk* root = aml_create_node(NULL);␊
263␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
264␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
265␉␉␉␉struct aml_chunk* name = aml_add_name(scop, "CST_");␊
266␉␉␉␉␉struct aml_chunk* pack = aml_add_package(name);␊
267␉␉␉␉␉␉aml_add_byte(pack, cstates_count);␊
268␉␉␊
269␉␉␉␉␉␉struct aml_chunk* tmpl = aml_add_package(pack);␊
270 if (cst_using_sustemio) ␊
271 { ␊
272 // C1␊
273 resource_template_register_fixedhw[8] = 0x00; ␊
274 resource_template_register_fixedhw[9] = 0x00; ␊
275 resource_template_register_fixedhw[18] = 0x00; ␊
276 aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
277 aml_add_byte(tmpl, 0x01); // C1␊
278 aml_add_word(tmpl, 0x0001); // Latency␊
279 aml_add_dword(tmpl, 0x000003e8); // Power␊
280 ␊
281 uint8_t p_blk_lo, p_blk_hi;␊
282 ␊
283 if (c2_enabled) // C2␊
284 { ␊
285 p_blk_lo = acpi_cpu_p_blk + 4;␊
286 p_blk_hi = (acpi_cpu_p_blk + 4) >> 8;␊
287 ␊
288 tmpl = aml_add_package(pack);␊
289 resource_template_register_systemio[11] = p_blk_lo; // C2␊
290 resource_template_register_systemio[12] = p_blk_hi; // C2␊
291 aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
292 aml_add_byte(tmpl, 0x02); // C2␊
293 aml_add_word(tmpl, 0x0040); // Latency␊
294 aml_add_dword(tmpl, 0x000001f4); // Power␊
295 }␊
296 ␊
297 if (c4_enabled) // C4␊
298 {␊
299 p_blk_lo = acpi_cpu_p_blk + 5;␊
300 p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
301 ␊
302 tmpl = aml_add_package(pack);␊
303 resource_template_register_systemio[11] = p_blk_lo; // C4␊
304 resource_template_register_systemio[12] = p_blk_hi; // C4␊
305 aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
306 aml_add_byte(tmpl, 0x04); // C4␊
307 aml_add_word(tmpl, 0x0080); // Latency␊
308 aml_add_dword(tmpl, 0x000000C8); // Power␊
309 }␊
310 else if (c3_enabled) // C3␊
311 {␊
312 p_blk_lo = acpi_cpu_p_blk + 5;␊
313 p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
314 ␊
315 tmpl = aml_add_package(pack);␊
316 resource_template_register_systemio[11] = p_blk_lo; // C3␊
317 resource_template_register_systemio[12] = p_blk_hi; // C3␊
318 aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
319 aml_add_byte(tmpl, 0x03); // C3␊
320 aml_add_word(tmpl, 0x0060); // Latency␊
321 aml_add_dword(tmpl, 0x0000015e); // Power␊
322 }␊
323␊
324 }␊
325 else ␊
326 {␊
327 // C1␊
328 resource_template_register_fixedhw[11] = 0x00; // C1␊
329 aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
330 aml_add_byte(tmpl, 0x01); // C1␊
331 aml_add_word(tmpl, 0x0001); // Latency␊
332 aml_add_dword(tmpl, 0x000003e8); // Power␊
333 ␊
334 resource_template_register_fixedhw[18] = 0x03;␊
335 ␊
336 if (c2_enabled) // C2␊
337 {␊
338 tmpl = aml_add_package(pack);␊
339 resource_template_register_fixedhw[11] = 0x10; // C2␊
340 aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
341 aml_add_byte(tmpl, 0x02); // C2␊
342 aml_add_word(tmpl, 0x0040); // Latency␊
343 aml_add_dword(tmpl, 0x000001f4); // Power␊
344 }␊
345 ␊
346 if (c4_enabled) // C4␊
347 {␊
348 tmpl = aml_add_package(pack);␊
349 resource_template_register_fixedhw[11] = 0x30; // C4␊
350 aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
351 aml_add_byte(tmpl, 0x04); // C4␊
352 aml_add_word(tmpl, 0x0080); // Latency␊
353 aml_add_dword(tmpl, 0x000000C8); // Power␊
354 }␊
355 else if (c3_enabled) ␊
356 {␊
357 tmpl = aml_add_package(pack);␊
358 resource_template_register_fixedhw[11] = 0x20; // C3␊
359 aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
360 aml_add_byte(tmpl, 0x03); // C3␊
361 aml_add_word(tmpl, 0x0060); // Latency␊
362 aml_add_dword(tmpl, 0x0000015e); // Power␊
363 }␊
364 }␊
365␉␉␉␉␉␉␉␉␉␉␉␉␉␊
366␉␉␉␊
367␉␉␉// Aliaces␊
368␉␉␉int i;␊
369␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
370␉␉␉{␊
371␉␉␉␉char name[9];␊
372␉␉␉␉sprintf(name, "_PR_%c%c%c%c", acpi_cpu_name[i][0], acpi_cpu_name[i][1], acpi_cpu_name[i][2], acpi_cpu_name[i][3]);␊
373␉␉␉␉␊
374␉␉␉␉scop = aml_add_scope(root, name);␊
375␉␉␉␉␉aml_add_alias(scop, "CST_", "_CST");␊
376␉␉␉}␊
377␉␉␊
378␉␉aml_calculate_size(root);␊
379␉␉␊
380␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
381␉␊
382␉␉aml_write_node(root, (void*)ssdt, 0);␊
383␉␉␊
384␉␉ssdt->Length = root->Size;␊
385␉␉ssdt->Checksum = 0;␊
386␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
387␉␉␊
388␉␉aml_destroy_node(root);␊
389␉␉␊
390␉␉//dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);␊
391␉␉␉␉␊
392␉␉verbose ("SSDT with CPU C-States generated successfully\n");␊
393␉␉␊
394␉␉return ssdt;␊
395␉}␊
396␉else ␊
397␉{␊
398␉␉verbose ("ACPI CPUs not found: C-States not generated !!!\n");␊
399␉}␊
400␊
401␉return NULL;␊
402}␊
403␊
404struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)␊
405{␉␊
406␉char ssdt_header[] =␊
407␉{␊
408␉␉0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */␊
409␉␉0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */␊
410␉␉0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */␊
411␉␉0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */␊
412␉␉0x31, 0x03, 0x10, 0x20,␉␉␉␉␉␉␉/* 1.._␉␉*/␊
413␉};␊
414␉␊
415␉if (Platform.CPU.Vendor != 0x756E6547) {␊
416␉␉verbose ("Not an Intel platform: P-States will not be generated !!!\n");␊
417␉␉return NULL;␊
418␉}␊
419␉␊
420␉if (!(Platform.CPU.Features & CPU_FEATURE_MSR)) {␊
421␉␉verbose ("Unsupported CPU: P-States will not be generated !!!\n");␊
422␉␉return NULL;␊
423␉}␊
424␉␊
425␉if (acpi_cpu_count == 0) ␊
426␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
427␉␊
428␉if (acpi_cpu_count > 0) ␊
429␉{␊
430␉␉struct p_state initial, maximum, minimum, p_states[32];␊
431␉␉uint8_t p_states_count = 0;␉␉␊
432␉␉␊
433␉␉// Retrieving P-States, ported from code by superhai (c)␊
434␉␉switch (Platform.CPU.Family) {␊
435␉␉␉case 0x06: ␊
436␉␉␉{␊
437␉␉␉␉switch (Platform.CPU.Model) ␊
438␉␉␉␉{␊
439␉␉␉␉␉case CPU_MODEL_DOTHAN:␉// Intel Pentium M␊
440␉␉␉␉␉case CPU_MODEL_YONAH:␉// Intel Mobile Core Solo, Duo␊
441␉␉␉␉␉case CPU_MODEL_MEROM:␉// Intel Mobile Core 2 Solo, Duo, Xeon 30xx, Xeon 51xx, Xeon X53xx, Xeon E53xx, Xeon X32xx␊
442␉␉␉␉␉case CPU_MODEL_PENRYN:␉// Intel Core 2 Solo, Duo, Quad, Extreme, Xeon X54xx, Xeon X33xx␊
443␉␉␉␉␉case CPU_MODEL_ATOM:␉// Intel Atom (45nm)␊
444␉␉␉␉␉{␊
445␉␉␉␉␉␉bool cpu_dynamic_fsb = false;␊
446␉␉␉␉␉␉␊
447␉␉␉␉␉␉if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27)) ␊
448␉␉␉␉␉␉{␊
449␉␉␉␉␉␉␉wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28))); ␊
450␉␉␉␉␉␉␉delay(1);␊
451␉␉␉␉␉␉␉cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);␊
452␉␉␉␉␉␉}␊
453␉␉␉␉␉␉␊
454␉␉␉␉␉␉bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));␊
455␉␉␉␉␉␉␊
456␉␉␉␉␉␉initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);␊
457␉␉␉␉␉␉␊
458␉␉␉␉␉␉maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);␊
459␉␉␉␉␉␉maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;␊
460␉␉␉␉␉␉␊
461␉␉␉␉␉␉minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);␊
462␉␉␉␉␉␉minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);␊
463␉␉␉␉␉␉␊
464␉␉␉␉␉␉if (minimum.FID == 0) ␊
465␉␉␉␉␉␉{␊
466␉␉␉␉␉␉␉uint64_t msr;␊
467␉␉␉␉␉␉␉uint8_t i;␊
468␉␉␉␉␉␉␉// Probe for lowest fid␊
469␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--) ␊
470␉␉␉␉␉␉␉{␊
471␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
472␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);␊
473␉␉␉␉␉␉␉␉intel_waitforsts();␊
474␉␉␉␉␉␉␉␉minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F; ␊
475␉␉␉␉␉␉␉␉delay(1);␊
476␉␉␉␉␉␉␉}␊
477␉␉␉␉␉␉␉␊
478␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
479␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
480␉␉␉␉␉␉␉intel_waitforsts();␊
481␉␉␉␉␉␉}␊
482␉␉␉␉␉␉␊
483␉␉␉␉␉␉if (minimum.VID == maximum.VID) ␊
484␉␉␉␉␉␉{␉␊
485␉␉␉␉␉␉␉uint64_t msr;␊
486␉␉␉␉␉␉␉uint8_t i;␊
487␉␉␉␉␉␉␉// Probe for lowest vid␊
488␉␉␉␉␉␉␉for (i = maximum.VID; i > 0xA; i--) ␊
489␉␉␉␉␉␉␉{␊
490␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
491␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);␊
492␉␉␉␉␉␉␉␉intel_waitforsts();␊
493␉␉␉␉␉␉␉␉minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F; ␊
494␉␉␉␉␉␉␉␉delay(1);␊
495␉␉␉␉␉␉␉}␊
496␉␉␉␉␉␉␉␊
497␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
498␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
499␉␉␉␉␉␉␉intel_waitforsts();␊
500␉␉␉␉␉␉}␊
501␉␉␉␉␉␉␊
502␉␉␉␉␉␉minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;␊
503␉␉␉␉␉␉␊
504␉␉␉␉␉␉// Sanity check␊
505␉␉␉␉␉␉if (maximum.CID < minimum.CID) ␊
506␉␉␉␉␉␉{␊
507␉␉␉␉␉␉␉DBG("Insane FID values!");␊
508␉␉␉␉␉␉␉p_states_count = 0;␊
509␉␉␉␉␉␉}␊
510␉␉␉␉␉␉else␊
511␉␉␉␉␉␉{␊
512␉␉␉␉␉␉␉// Finalize P-States␊
513␉␉␉␉␉␉␉// Find how many P-States machine supports␊
514␉␉␉␉␉␉␉p_states_count = maximum.CID - minimum.CID + 1;␊
515␉␉␉␉␉␉␉␊
516␉␉␉␉␉␉␉if (p_states_count > 32) ␊
517␉␉␉␉␉␉␉␉p_states_count = 32;␊
518␉␉␉␉␉␉␉␊
519␉␉␉␉␉␉␉uint8_t vidstep;␊
520␉␉␉␉␉␉␉uint8_t i = 0, u, invalid = 0;␊
521␉␉␉␉␉␉␉␊
522␉␉␉␉␉␉␉vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);␊
523␉␉␉␉␉␉␉␊
524␉␉␉␉␉␉␉for (u = 0; u < p_states_count; u++) ␊
525␉␉␉␉␉␉␉{␊
526␉␉␉␉␉␉␉␉i = u - invalid;␊
527␉␉␉␉␉␉␉␉␊
528␉␉␉␉␉␉␉␉p_states[i].CID = maximum.CID - u;␊
529␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].CID >> 1);␊
530␉␉␉␉␉␉␉␉␊
531␉␉␉␉␉␉␉␉if (p_states[i].FID < 0x6) ␊
532␉␉␉␉␉␉␉␉{␊
533␉␉␉␉␉␉␉␉␉if (cpu_dynamic_fsb) ␊
534␉␉␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].FID << 1) | 0x80;␊
535␉␉␉␉␉␉␉␉} ␊
536␉␉␉␉␉␉␉␉else if (cpu_noninteger_bus_ratio) ␊
537␉␉␉␉␉␉␉␉{␊
538␉␉␉␉␉␉␉␉␉p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));␊
539␉␉␉␉␉␉␉␉}␊
540␉␉␉␉␉␉␉␉␊
541␉␉␉␉␉␉␉␉if (i && p_states[i].FID == p_states[i-1].FID)␊
542␉␉␉␉␉␉␉␉␉invalid++;␊
543␉␉␉␉␉␉␉␉␊
544␉␉␉␉␉␉␉␉p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;␊
545␉␉␉␉␉␉␉␉␊
546␉␉␉␉␉␉␉␉uint32_t multiplier = p_states[i].FID & 0x1f;␉␉// = 0x08␊
547␉␉␉␉␉␉␉␉bool half = p_states[i].FID & 0x40;␉␉␉␉␉// = 0x01␊
548␉␉␉␉␉␉␉␉bool dfsb = p_states[i].FID & 0x80;␉␉␉␉␉// = 0x00␊
549␉␉␉␉␉␉␉␉uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400␊
550␉␉␉␉␉␉␉␉uint32_t halffsb = (fsb + 1) >> 1;␉␉␉␉␉// = 200␊
551␉␉␉␉␉␉␉␉uint32_t frequency = (multiplier * fsb);␉␉␉// = 3200␊
552␉␉␉␉␉␉␉␉␊
553␉␉␉␉␉␉␉␉p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;␉// = 3200 + 200 = 3400␊
554␉␉␉␉␉␉␉}␊
555␉␉␉␉␉␉␉␊
556␉␉␉␉␉␉␉p_states_count -= invalid;␊
557␉␉␉␉␉␉}␊
558␉␉␉␉␉␉␊
559␉␉␉␉␉␉break;␊
560␉␉␉␉␉} ␊
561␉␉␉␉␉case CPU_MODEL_FIELDS:␉␉// Intel Core i5, i7, Xeon X34xx LGA1156 (45nm)␊
562␉␉␉␉␉case CPU_MODEL_DALES:␉␉␊
563␉␉␉␉␉case CPU_MODEL_DALES_32NM:␉// Intel Core i3, i5 LGA1156 (32nm)␊
564␉␉␉␉␉case CPU_MODEL_NEHALEM:␉␉// Intel Core i7, Xeon W35xx, Xeon X55xx, Xeon E55xx LGA1366 (45nm)␊
565␉␉␉␉␉case CPU_MODEL_NEHALEM_EX:␉// Intel Xeon X75xx, Xeon X65xx, Xeon E75xx, Xeon E65xx␊
566␉␉␉␉␉case CPU_MODEL_WESTMERE:␉// Intel Core i7, Xeon X56xx, Xeon E56xx, Xeon W36xx LGA1366 (32nm) 6 Core␊
567␉␉␉␉␉case CPU_MODEL_WESTMERE_EX:␉// Intel Xeon E7␊
568 case CPU_MODEL_SANDY:␉␉// Intel Core i3, i5, i7 LGA1155 (32nm)␊
569 case CPU_MODEL_SANDY_XEON:␉// Intel Xeon E3␊
570␉␉␉␉␉{␊
571␉␉␉␉␉␉maximum.Control = rdmsr64(MSR_IA32_PERF_STATUS) & 0xff; // Seems it always contains maximum multiplier value (with turbo, that's we need)...␊
572␉␉␉␉␉␉minimum.Control = (rdmsr64(MSR_PLATFORM_INFO) >> 40) & 0xff;␊
573␉␉␉␉␉␉␊
574␉␉␉␉␉␉verbose("P-States: min 0x%x, max 0x%x\n", minimum.Control, maximum.Control);␉␉␉␊
575␉␉␉␉␉␉␊
576␉␉␉␉␉␉// Sanity check␊
577␉␉␉␉␉␉if (maximum.Control < minimum.Control) ␊
578␉␉␉␉␉␉{␊
579␉␉␉␉␉␉␉DBG("Insane control values!");␊
580␉␉␉␉␉␉␉p_states_count = 0;␊
581␉␉␉␉␉␉}␊
582␉␉␉␉␉␉else␊
583␉␉␉␉␉␉{␊
584␉␉␉␉␉␉␉uint8_t i;␊
585␉␉␉␉␉␉␉p_states_count = 0;␊
586␉␉␉␉␉␉␉␊
587␉␉␉␉␉␉␉for (i = maximum.Control; i >= minimum.Control; i--) ␊
588␉␉␉␉␉␉␉{␊
589␉␉␉␉␉␉␉␉p_states[p_states_count].Control = i;␊
590␉␉␉␉␉␉␉␉p_states[p_states_count].CID = p_states[p_states_count].Control << 1;␊
591␉␉␉␉␉␉␉␉p_states[p_states_count].Frequency = (Platform.CPU.FSBFrequency / 1000000) * i;␊
592␉␉␉␉␉␉␉␉p_states_count++;␊
593␉␉␉␉␉␉␉}␊
594␉␉␉␉␉␉}␊
595␉␉␉␉␉␉␊
596␉␉␉␉␉␉break;␊
597␉␉␉␉␉}␉␊
598␉␉␉␉␉default:␊
599␉␉␉␉␉␉verbose ("Unsupported CPU: P-States not generated !!!\n");␊
600␉␉␉␉␉␉break;␊
601␉␉␉␉}␊
602␉␉␉}␊
603␉␉}␊
604␉␉␊
605␉␉// Generating SSDT␊
606␉␉if (p_states_count > 0) ␊
607␉␉{␉␊
608␉␉␉int i;␊
609␉␉␉␊
610␉␉␉struct aml_chunk* root = aml_create_node(NULL);␊
611␉␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
612␉␉␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
613␉␉␉␉␉␉struct aml_chunk* name = aml_add_name(scop, "PSS_");␊
614␉␉␉␉␉␉␉struct aml_chunk* pack = aml_add_package(name);␊
615␉␉␉␊
616␉␉␉␉␉␉␉␉for (i = 0; i < p_states_count; i++) ␊
617␉␉␉␉␉␉␉␉{␊
618␉␉␉␉␉␉␉␉␉struct aml_chunk* pstt = aml_add_package(pack);␊
619␉␉␉␉␉␉␉␉␉␊
620␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Frequency);␊
621␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x00000000); // Power␊
622␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
623␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
624␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Control);␊
625␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, i+1); // Status␊
626␉␉␉␉␉␉␉␉}␊
627␉␉␉␉␊
628␉␉␉// Add aliaces␊
629␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
630␉␉␉{␊
631␉␉␉␉char name[9];␊
632␉␉␉␉sprintf(name, "_PR_%c%c%c%c", acpi_cpu_name[i][0], acpi_cpu_name[i][1], acpi_cpu_name[i][2], acpi_cpu_name[i][3]);␊
633␉␉␉␉␊
634␉␉␉␉scop = aml_add_scope(root, name);␊
635␉␉␉␉aml_add_alias(scop, "PSS_", "_PSS");␊
636␉␉␉}␊
637␉␉␉␊
638␉␉␉aml_calculate_size(root);␊
639␉␉␉␊
640␉␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
641␉␉␉␊
642␉␉␉aml_write_node(root, (void*)ssdt, 0);␊
643␉␉␉␊
644␉␉␉ssdt->Length = root->Size;␊
645␉␉␉ssdt->Checksum = 0;␊
646␉␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
647␉␉␉␊
648␉␉␉aml_destroy_node(root);␊
649␉␉␉␊
650␉␉␉//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);␊
651␉␉␉␊
652␉␉␉verbose ("SSDT with CPU P-States generated successfully\n");␊
653␉␉␉␊
654␉␉␉return ssdt;␊
655␉␉}␊
656␉}␊
657␉else ␊
658␉{␊
659␉␉verbose ("ACPI CPUs not found: P-States not generated !!!\n");␊
660␉}␊
661␉␊
662␉return NULL;␊
663}␊
664␊
665struct acpi_2_fadt *patch_fadt(struct acpi_2_fadt *fadt, struct acpi_2_dsdt *new_dsdt)␊
666{␊
667␉extern void setupSystemType(); ␊
668␉␊
669␉struct acpi_2_fadt *fadt_mod;␊
670␉bool fadt_rev2_needed = false;␊
671␉bool fix_restart;␊
672␉bool fix_restart_acpi = false;␊
673␉const char * value;␊
674␉␊
675␉// Restart Fix␊
676␉if (Platform.CPU.Vendor == 0x756E6547) {␉/* Intel */␊
677␉␉fix_restart = true;␊
678␉␉value = getStringForKey(kRestartFix, &bootInfo->chameleonConfig);␊
679␉␉verbose("value is %s \n Key is %s\n", value, kRestartFix);␊
680␉␉if (value[0] == 'A') {␊
681␉␉␉fix_restart_acpi = true;␊
682␉␉␉verbose("FADT: ACPI\n");␊
683␉␉} else if (value[0] == 'P') {␊
684␉␉␉fix_restart_acpi = false;␊
685␉␉␉verbose("FADT: PS2\n");␊
686␉␉} else {␊
687␉␉␉fix_restart = false;␊
688␉␉␉verbose("FADT: Fail\n");␊
689␉␉}␊
690␉} else {␊
691␉␉verbose ("Not an Intel platform: Restart Fix not applied !!!\n");␊
692␉␉fix_restart = false;␊
693␉}␊
694␉␊
695␉if (fix_restart) fadt_rev2_needed = true;␊
696␉␊
697␉// Allocate new fadt table␊
698␉if (fadt->Length < 0x84 && fadt_rev2_needed)␊
699␉{␊
700␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(0x84);␊
701␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
702␉␉fadt_mod->Length = 0x84;␊
703␉␉fadt_mod->Revision = 0x02; // FADT rev 2 (ACPI 1.0B MS extensions)␊
704␉}␊
705␉else␊
706␉{␊
707␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(fadt->Length);␊
708␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
709␉}␊
710␉// Determine system type / PM_Model␊
711␉if ( (value=getStringForKey(kSystemType, &bootInfo->chameleonConfig))!=NULL)␊
712␉{␊
713␉␉if (Platform.Type > 6) ␊
714␉␉{␊
715␉␉␉if(fadt_mod->PM_Profile<=6)␊
716␉␉␉␉Platform.Type = fadt_mod->PM_Profile; // get the fadt if correct␊
717␉␉␉else ␊
718␉␉␉␉Platform.Type = 1;␉␉/* Set a fixed value (Desktop) */␊
719␉␉␉verbose("Error: system-type must be 0..6. Defaulting to %d !\n", Platform.Type);␊
720␉␉}␊
721␉␉else␊
722␉␉␉Platform.Type = (unsigned char) strtoul(value, NULL, 10);␊
723␉}␊
724␉// Set PM_Profile from System-type if only user wanted this value to be forced␊
725␉if (fadt_mod->PM_Profile != Platform.Type) ␊
726␉{␊
727␉ if (value) ␊
728␉␉{ // user has overriden the SystemType so take care of it in FACP␊
729␉␉␉verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);␊
730␉␉␉fadt_mod->PM_Profile = Platform.Type;␊
731␉ }␊
732␉ else␊
733␉ { // PM_Profile has a different value and no override has been set, so reflect the user value to ioregs␊
734␉␉␉Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;␊
735␉ } ␊
736␉}␊
737␉// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()␊
738␉// because we need to take care of facp original content, if it is correct.␊
739␉setupSystemType();␊
740␉␊
741␉// Patch FADT to fix restart␊
742␉if (fix_restart)␊
743␉{␊
744␉␉if (fix_restart_acpi) {␊
745␉␉␉fadt_mod->Flags|= 0x400;␊
746␉␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
747␉␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
748␉␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
749␉␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
750␉␉␉fadt_mod->Reset_Address␉␉= 0x0cf9; // Address of the register␊
751␉␉␉fadt_mod->Reset_Value␉␉= 0x06; // Value to write to reset the system␊
752␉␉␉verbose("FADT: ACPI Restart Fix applied!\n");␉␉␉␊
753␉␉} else {␊
754␉␉␉fadt_mod->Flags|= 0x400;␊
755␉␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
756␉␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
757␉␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
758␉␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
759␉␉␉fadt_mod->Reset_Address␉␉= 0x64; // Address of the register␊
760␉␉␉fadt_mod->Reset_Value␉␉= 0xfe; // Value to write to reset the system␊
761␉␉␉verbose("FADT: PS2 Restart Fix applied!\n");␉␉␉␊
762␉␉}␊
763␉}␊
764␉␊
765␉// Patch DSDT Address if we have loaded DSDT.aml␊
766␉if(new_dsdt)␊
767␉{␊
768␉␉DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
769␉␉␊
770␉␉fadt_mod->DSDT=(uint32_t)new_dsdt;␊
771␉␉if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)␊
772␉␉␉fadt_mod->X_DSDT=(uint32_t)new_dsdt;␊
773␉␉␊
774␉␉DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
775␉␉␊
776␉␉verbose("FADT: Using custom DSDT!\n");␊
777␉}␊
778␉␊
779␉// Correct the checksum␊
780␉fadt_mod->Checksum=0;␊
781␉fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);␊
782␉␊
783␉return fadt_mod;␊
784}␊
785␊
786/* Setup ACPI without replacing DSDT. */␊
787int setupAcpiNoMod()␊
788{␊
789␉//␉addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");␊
790␉//␉addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");␊
791␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
792␉acpi10_p = (uint32_t)getAddressOfAcpiTable();␊
793␉acpi20_p = (uint32_t)getAddressOfAcpi20Table();␊
794␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
795␉if(acpi20_p) addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
796␉return 1;␊
797}␊
798␊
799/* Setup ACPI. Replace DSDT if DSDT.aml is found */␊
800int setupAcpi(void)␊
801{␊
802␉int version;␊
803␉void *new_dsdt;␊
804␊
805␉const char *filename;␊
806␉char dirSpec[128];␊
807␉int len = 0;␊
808␊
809␉// Try using the file specified with the DSDT option␊
810␉if (getValueForKey(kDSDT, &filename, &len, &bootInfo->chameleonConfig))␊
811␉{␊
812␉␉sprintf(dirSpec, filename);␊
813␉}␊
814␉else␊
815␉{␊
816␉␉sprintf(dirSpec, "DSDT.aml");␊
817␉}␊
818␉␊
819␉// Load replacement DSDT␊
820␉new_dsdt = loadACPITable(dirSpec);␊
821␉// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present␊
822␉/*if (!new_dsdt)␊
823␉ {␊
824␉ return setupAcpiNoMod();␊
825␉ }*/␊
826␉␊
827␉// Mozodojo: Load additional SSDTs␊
828␉struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst␊
829␉int ssdt_count=0;␊
830␉␊
831␉// SSDT Options␊
832␉bool drop_ssdt=false, generate_pstates=false, generate_cstates=false; ␊
833␉␊
834␉getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->chameleonConfig);␊
835␉getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->chameleonConfig);␊
836␉getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->chameleonConfig);␊
837␉␊
838␉{␊
839␉␉int i;␊
840␉␉␊
841␉␉for (i=0; i<30; i++)␊
842␉␉{␊
843␉␉␉char filename[512];␊
844␊
845␉␉␉sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);␊
846␉␉␉␊
847␉␉␉if(new_ssdt[ssdt_count] = loadACPITable(filename)) ␊
848␉␉␉{␉␉␉␉␊
849␉␉␉␉ssdt_count++;␊
850␉␉␉}␊
851␉␉␉else ␊
852␉␉␉{␊
853␉␉␉␉break;␊
854␉␉␉}␊
855␉␉}␊
856␉}␊
857␉␉␊
858␉// Do the same procedure for both versions of ACPI␊
859␉for (version=0; version<2; version++) {␊
860␉␉struct acpi_2_rsdp *rsdp, *rsdp_mod;␊
861␉␉struct acpi_2_rsdt *rsdt, *rsdt_mod;␊
862␉␉int rsdplength;␊
863␉␉␊
864␉␉// Find original rsdp␊
865␉␉rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());␊
866␉␉if (!rsdp)␊
867␉␉{␊
868␉␉␉DBG("No ACPI version %d found. Ignoring\n", version+1);␊
869␉␉␉if (version)␊
870␉␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");␊
871␉␉␉else␊
872␉␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");␊
873␉␉␉continue;␊
874␉␉}␊
875␉␉rsdplength=version?rsdp->Length:20;␊
876␉␉␊
877␉␉DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);␊
878␉␉␊
879␉␉/* FIXME: no check that memory allocation succeeded ␊
880␉␉ * Copy and patch RSDP,RSDT, XSDT and FADT␊
881␉␉ * For more info see ACPI Specification pages 110 and following␊
882␉␉ */␊
883␉␉␊
884␉␉rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);␊
885␉␉memcpy(rsdp_mod, rsdp, rsdplength); ␊
886␉␉rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);␊
887␉␉␊
888␉␉DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);␊
889␉␉␊
890␉␉if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)␊
891␉␉{␊
892␉␉␉uint32_t *rsdt_entries;␊
893␉␉␉int rsdt_entries_num;␊
894␉␉␉int dropoffset=0, i;␊
895␉␉␉␊
896␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
897␉␉␉rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length); ␊
898␉␉␉memcpy (rsdt_mod, rsdt, rsdt->Length);␊
899␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
900␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
901␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
902␉␉␉for (i=0;i<rsdt_entries_num;i++)␊
903␉␉␉{␊
904␉␉␉␉char *table=(char *)(rsdt_entries[i]);␊
905␉␉␉␉if (!table)␊
906␉␉␉␉␉continue;␊
907␉␉␉␉␊
908␉␉␉␉DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);␊
909␉␉␉␉␊
910␉␉␉␉rsdt_entries[i-dropoffset]=rsdt_entries[i];␊
911␉␉␉␉␊
912␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
913␉␉␉␉{␊
914␉␉␉␉␉dropoffset++;␊
915␉␉␉␉␉continue;␊
916␉␉␉␉}␊
917␉␉␉␉if (tableSign(table, "DSDT"))␊
918␉␉␉␉{␊
919␉␉␉␉␉DBG("DSDT found\n");␊
920␉␉␉␉␉␊
921␉␉␉␉␉if(new_dsdt)␊
922␉␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
923␉␉␉␉␉␉␉␉␉␉␊
924␉␉␉␉␉continue;␊
925␉␉␉␉}␊
926␉␉␉␉if (tableSign(table, "FACP"))␊
927␉␉␉␉{␊
928␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
929␉␉␉␉␉fadt=(struct acpi_2_fadt *)rsdt_entries[i];␊
930␉␉␉␉␉␊
931␉␉␉␉␉DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);␊
932␉␉␉␉␉␊
933␉␉␉␉␉if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)␊
934␉␉␉␉␉{␊
935␉␉␉␉␉␉printf("FADT incorrect. Not modified\n");␊
936␉␉␉␉␉␉continue;␊
937␉␉␉␉␉}␊
938␉␉␉␉␉␊
939␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
940␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
941␉␉␉␉␉␊
942␉␉␉␉␉// Generate _CST SSDT␊
943␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))␊
944␉␉␉␉␉{␊
945␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
946␉␉␉␉␉␉ssdt_count++;␊
947␉␉␉␉␉}␊
948␉␉␉␉␉␊
949␉␉␉␉␉// Generating _PSS SSDT␊
950␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
951␉␉␉␉␉{␊
952␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
953␉␉␉␉␉␉ssdt_count++;␊
954␉␉␉␉␉}␊
955␉␉␉␉␉␊
956␉␉␉␉␉continue;␊
957␉␉␉␉}␊
958␉␉␉}␊
959␉␉␉DBG("\n");␊
960␉␉␉␊
961␉␉␉// Allocate rsdt in Kernel memory area␊
962␉␉␉rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;␊
963␉␉␉struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);␊
964␉␉␉memcpy (rsdt_copy, rsdt_mod, rsdt_mod->Length);␊
965␉␉␉free(rsdt_mod); rsdt_mod = rsdt_copy;␊
966␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
967␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
968␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
969␉␉␉␊
970␉␉␉// Mozodojo: Insert additional SSDTs into RSDT␊
971␉␉␉if(ssdt_count>0)␊
972␉␉␉{␊
973␉␉␉␉int j;␊
974␉␉␉␉␊
975␉␉␉␉for (j=0; j<ssdt_count; j++)␊
976␉␉␉␉␉rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
977␉␉␉␉␉␊
978␉␉␉␉verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);␊
979␉␉␉}␊
980␊
981␉␉␉// Correct the checksum of RSDT␊
982␉␉␉DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);␊
983␉␉␉␊
984␉␉␉rsdt_mod->Checksum=0;␊
985␉␉␉rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);␊
986␉␉␉␊
987␉␉␉DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);␊
988␉␉}␊
989␉␉else␊
990␉␉{␊
991␉␉␉rsdp_mod->RsdtAddress=0;␊
992␉␉␉printf("RSDT not found or RSDT incorrect\n");␊
993␉␉}␊
994␉␉␊
995␉␉if (version)␊
996␉␉{␊
997␉␉␉struct acpi_2_xsdt *xsdt, *xsdt_mod;␊
998␉␉␉␊
999␉␉␉// FIXME: handle 64-bit address correctly␊
1000␉␉␉␊
1001␉␉␉xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);␊
1002␉␉␉DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress,␊
1003␉␉␉␉xsdt->Length);␊
1004␉␉␉if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)␊
1005␉␉␉{␊
1006␉␉␉␉uint64_t *xsdt_entries;␊
1007␉␉␉␉int xsdt_entries_num, i;␊
1008␉␉␉␉int dropoffset=0;␊
1009␉␉␉␉␊
1010␉␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
1011␉␉␉␉xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length); ␊
1012␉␉␉␉memcpy(xsdt_mod, xsdt, xsdt->Length);␊
1013␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1014␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1015␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1016␉␉␉␉for (i=0;i<xsdt_entries_num;i++)␊
1017␉␉␉␉{␊
1018␉␉␉␉␉char *table=(char *)((uint32_t)(xsdt_entries[i]));␊
1019␉␉␉␉␉if (!table)␊
1020␉␉␉␉␉␉continue;␊
1021␉␉␉␉␉␊
1022␉␉␉␉␉xsdt_entries[i-dropoffset]=xsdt_entries[i];␊
1023␉␉␉␉␉␊
1024␉␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
1025␉␉␉␉␉{␊
1026␉␉␉␉␉␉dropoffset++;␊
1027␉␉␉␉␉␉continue;␊
1028␉␉␉␉␉}␉␉␉␉␉␊
1029␉␉␉␉␉if (tableSign(table, "DSDT"))␊
1030␉␉␉␉␉{␊
1031␉␉␉␉␉␉DBG("DSDT found\n");␊
1032␉␉␉␉␉␉␊
1033␉␉␉␉␉␉if (new_dsdt) ␊
1034␉␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
1035␉␉␉␉␉␉␊
1036␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1037␉␉␉␉␉␉␊
1038␉␉␉␉␉␉continue;␊
1039␉␉␉␉␉}␊
1040␉␉␉␉␉if (tableSign(table, "FACP"))␊
1041␉␉␉␉␉{␊
1042␉␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
1043␉␉␉␉␉␉fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];␊
1044␉␉␉␉␉␉␊
1045␉␉␉␉␉␉DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt, ␊
1046␉␉␉␉␉␉␉fadt->Length);␊
1047␉␉␉␉␉␉␊
1048␉␉␉␉␉␉if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)␊
1049␉␉␉␉␉␉{␊
1050␉␉␉␉␉␉␉verbose("FADT incorrect or after 4GB. Dropping XSDT\n");␊
1051␉␉␉␉␉␉␉goto drop_xsdt;␊
1052␉␉␉␉␉␉}␊
1053␉␉␉␉␉␉␊
1054␉␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
1055␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
1056␉␉␉␉␉␉␊
1057␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1058␉␉␉␉␉␉␊
1059␉␉␉␉␉␉// Generate _CST SSDT␊
1060␉␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod))) ␊
1061␉␉␉␉␉␉{␊
1062␉␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
1063␉␉␉␉␉␉␉ssdt_count++;␊
1064␉␉␉␉␉␉}␊
1065␉␉␉␉␉␉␊
1066␉␉␉␉␉␉// Generating _PSS SSDT␊
1067␉␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
1068␉␉␉␉␉␉{␊
1069␉␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
1070␉␉␉␉␉␉␉ssdt_count++;␊
1071␉␉␉␉␉␉}␊
1072␉␉␉␉␉␉␊
1073␉␉␉␉␉␉continue;␊
1074␉␉␉␉␉}␊
1075␉␉␉␉␉␊
1076␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1077␉␉␉␉␉␊
1078␉␉␉␉}␊
1079␉␉␉␉␊
1080␉␉␉␉// Allocate xsdt in Kernel memory area␊
1081␉␉␉␉xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;␊
1082␉␉␉␉struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);␊
1083␉␉␉␉memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);␊
1084␉␉␉␉free(xsdt_mod); xsdt_mod = xsdt_copy;␊
1085␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1086␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1087␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1088␉␉␉␉␊
1089␉␉␉␉// Mozodojo: Insert additional SSDTs into XSDT␊
1090␉␉␉␉if(ssdt_count>0)␊
1091␉␉␉␉{␊
1092␉␉␉␉␉int j;␊
1093␉␉␉␉␉␊
1094␉␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1095␉␉␉␉␉␉xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1096␉␉␉␉␉␉␊
1097␉␉␉␉␉verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);␊
1098␉␉␉␉}␊
1099␊
1100␉␉␉␉// Correct the checksum of XSDT␊
1101␉␉␉␉xsdt_mod->Checksum=0;␊
1102␉␉␉␉xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);␊
1103␉␉␉}␊
1104␉␉␉else␊
1105␉␉␉{␊
1106␉␉␉drop_xsdt:␊
1107␉␉␉␉␊
1108␉␉␉␉DBG("About to drop XSDT\n");␊
1109␉␉␉␉␊
1110␉␉␉␉/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT. ␊
1111␉␉␉␉ * A Better strategy would be to generate␊
1112␉␉␉␉ */␊
1113␉␉␉␉␊
1114␉␉␉␉rsdp_mod->XsdtAddress=0xffffffffffffffffLL;␊
1115␉␉␉␉verbose("XSDT not found or XSDT incorrect\n");␊
1116␉␉␉}␊
1117␉␉}␊
1118␉␉␊
1119␉␉// Correct the checksum of RSDP ␊
1120␉␉␊
1121␉␉DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);␊
1122␉␉␊
1123␉␉rsdp_mod->Checksum=0;␊
1124␉␉rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);␊
1125␉␉␊
1126␉␉DBG("New checksum %d\n", rsdp_mod->Checksum);␊
1127␉␉␊
1128␉␉if (version)␊
1129␉␉{␊
1130␉␉␉DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);␊
1131␉␉␉␊
1132␉␉␉rsdp_mod->ExtendedChecksum=0;␊
1133␉␉␉rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);␊
1134␉␉␉␊
1135␉␉␉DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);␊
1136␉␉␉␊
1137␉␉}␊
1138␉␉␊
1139␉␉//verbose("Patched ACPI version %d DSDT\n", version+1);␊
1140␉␉if (version)␊
1141␉␉{␊
1142␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1143␉␉␉acpi20_p = (uint32_t)rsdp_mod;␊
1144␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
1145␉␉}␊
1146␉␉else␊
1147␉␉{␊
1148␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1149␉␉␉acpi10_p = (uint32_t)rsdp_mod;␊
1150␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
1151␉␉}␊
1152␉}␊
1153#if DEBUG_ACPI␊
1154␉printf("Press a key to continue... (DEBUG_ACPI)\n");␊
1155␉getchar();␊
1156#endif␊
1157␉return 1;␊
1158}␊
1159

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Attachment to issue 107

Created: 12 years 8 months ago by King Fright