root / target-i386 / helper.c @ f8ed7070
History | View | Annotate | Download (39.1 kB)
| 1 |
/*
|
|---|---|
| 2 |
* i386 helpers (without register variable usage)
|
| 3 |
*
|
| 4 |
* Copyright (c) 2003 Fabrice Bellard
|
| 5 |
*
|
| 6 |
* This library is free software; you can redistribute it and/or
|
| 7 |
* modify it under the terms of the GNU Lesser General Public
|
| 8 |
* License as published by the Free Software Foundation; either
|
| 9 |
* version 2 of the License, or (at your option) any later version.
|
| 10 |
*
|
| 11 |
* This library is distributed in the hope that it will be useful,
|
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 14 |
* Lesser General Public License for more details.
|
| 15 |
*
|
| 16 |
* You should have received a copy of the GNU Lesser General Public
|
| 17 |
* License along with this library; if not, write to the Free Software
|
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
| 19 |
*/
|
| 20 |
#include <stdarg.h> |
| 21 |
#include <stdlib.h> |
| 22 |
#include <stdio.h> |
| 23 |
#include <string.h> |
| 24 |
#include <inttypes.h> |
| 25 |
#include <signal.h> |
| 26 |
#include <assert.h> |
| 27 |
|
| 28 |
#include "cpu.h" |
| 29 |
#include "exec-all.h" |
| 30 |
#include "svm.h" |
| 31 |
#include "qemu-common.h" |
| 32 |
|
| 33 |
//#define DEBUG_MMU
|
| 34 |
|
| 35 |
static int cpu_x86_register (CPUX86State *env, const char *cpu_model); |
| 36 |
|
| 37 |
static void add_flagname_to_bitmaps(char *flagname, uint32_t *features, |
| 38 |
uint32_t *ext_features, |
| 39 |
uint32_t *ext2_features, |
| 40 |
uint32_t *ext3_features) |
| 41 |
{
|
| 42 |
int i;
|
| 43 |
/* feature flags taken from "Intel Processor Identification and the CPUID
|
| 44 |
* Instruction" and AMD's "CPUID Specification". In cases of disagreement
|
| 45 |
* about feature names, the Linux name is used. */
|
| 46 |
const char *feature_name[] = { |
| 47 |
"fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", |
| 48 |
"cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov", |
| 49 |
"pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */, NULL, "ds" /* Intel dts */, "acpi", "mmx", |
| 50 |
"fxsr", "sse", "sse2", "ss", "ht" /* Intel htt */, "tm", "ia64", "pbe", |
| 51 |
}; |
| 52 |
const char *ext_feature_name[] = { |
| 53 |
"pni" /* Intel,AMD sse3 */, NULL, NULL, "monitor", "ds_cpl", "vmx", NULL /* Linux smx */, "est", |
| 54 |
"tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL, |
| 55 |
NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt", |
| 56 |
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| 57 |
}; |
| 58 |
const char *ext2_feature_name[] = { |
| 59 |
"fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", |
| 60 |
"cx8" /* AMD CMPXCHG8B */, "apic", NULL, "syscall", "mttr", "pge", "mca", "cmov", |
| 61 |
"pat", "pse36", NULL, NULL /* Linux mp */, "nx" /* Intel xd */, NULL, "mmxext", "mmx", |
| 62 |
"fxsr", "fxsr_opt" /* AMD ffxsr */, "pdpe1gb" /* AMD Page1GB */, "rdtscp", NULL, "lm" /* Intel 64 */, "3dnowext", "3dnow", |
| 63 |
}; |
| 64 |
const char *ext3_feature_name[] = { |
| 65 |
"lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */, "cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse", |
| 66 |
"3dnowprefetch", "osvw", NULL /* Linux ibs */, NULL, "skinit", "wdt", NULL, NULL, |
| 67 |
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| 68 |
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| 69 |
}; |
| 70 |
|
| 71 |
for ( i = 0 ; i < 32 ; i++ ) |
| 72 |
if (feature_name[i] && !strcmp (flagname, feature_name[i])) {
|
| 73 |
*features |= 1 << i;
|
| 74 |
return;
|
| 75 |
} |
| 76 |
for ( i = 0 ; i < 32 ; i++ ) |
| 77 |
if (ext_feature_name[i] && !strcmp (flagname, ext_feature_name[i])) {
|
| 78 |
*ext_features |= 1 << i;
|
| 79 |
return;
|
| 80 |
} |
| 81 |
for ( i = 0 ; i < 32 ; i++ ) |
| 82 |
if (ext2_feature_name[i] && !strcmp (flagname, ext2_feature_name[i])) {
|
| 83 |
*ext2_features |= 1 << i;
|
| 84 |
return;
|
| 85 |
} |
| 86 |
for ( i = 0 ; i < 32 ; i++ ) |
| 87 |
if (ext3_feature_name[i] && !strcmp (flagname, ext3_feature_name[i])) {
|
| 88 |
*ext3_features |= 1 << i;
|
| 89 |
return;
|
| 90 |
} |
| 91 |
fprintf(stderr, "CPU feature %s not found\n", flagname);
|
| 92 |
} |
| 93 |
|
| 94 |
CPUX86State *cpu_x86_init(const char *cpu_model) |
| 95 |
{
|
| 96 |
CPUX86State *env; |
| 97 |
static int inited; |
| 98 |
|
| 99 |
env = qemu_mallocz(sizeof(CPUX86State));
|
| 100 |
if (!env)
|
| 101 |
return NULL; |
| 102 |
cpu_exec_init(env); |
| 103 |
env->cpu_model_str = cpu_model; |
| 104 |
|
| 105 |
/* init various static tables */
|
| 106 |
if (!inited) {
|
| 107 |
inited = 1;
|
| 108 |
optimize_flags_init(); |
| 109 |
} |
| 110 |
if (cpu_x86_register(env, cpu_model) < 0) { |
| 111 |
cpu_x86_close(env); |
| 112 |
return NULL; |
| 113 |
} |
| 114 |
cpu_reset(env); |
| 115 |
#ifdef USE_KQEMU
|
| 116 |
kqemu_init(env); |
| 117 |
#endif
|
| 118 |
return env;
|
| 119 |
} |
| 120 |
|
| 121 |
typedef struct x86_def_t { |
| 122 |
const char *name; |
| 123 |
uint32_t level; |
| 124 |
uint32_t vendor1, vendor2, vendor3; |
| 125 |
int family;
|
| 126 |
int model;
|
| 127 |
int stepping;
|
| 128 |
uint32_t features, ext_features, ext2_features, ext3_features; |
| 129 |
uint32_t xlevel; |
| 130 |
} x86_def_t; |
| 131 |
|
| 132 |
#define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
|
| 133 |
#define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
|
| 134 |
CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX) |
| 135 |
#define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
|
| 136 |
CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \ |
| 137 |
CPUID_PSE36 | CPUID_FXSR) |
| 138 |
#define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
|
| 139 |
#define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
|
| 140 |
CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \ |
| 141 |
CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \ |
| 142 |
CPUID_PAE | CPUID_SEP | CPUID_APIC) |
| 143 |
static x86_def_t x86_defs[] = {
|
| 144 |
#ifdef TARGET_X86_64
|
| 145 |
{
|
| 146 |
.name = "qemu64",
|
| 147 |
.level = 2,
|
| 148 |
.vendor1 = 0x68747541, /* "Auth" */ |
| 149 |
.vendor2 = 0x69746e65, /* "enti" */ |
| 150 |
.vendor3 = 0x444d4163, /* "cAMD" */ |
| 151 |
.family = 6,
|
| 152 |
.model = 2,
|
| 153 |
.stepping = 3,
|
| 154 |
.features = PPRO_FEATURES | |
| 155 |
/* these features are needed for Win64 and aren't fully implemented */
|
| 156 |
CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | |
| 157 |
/* this feature is needed for Solaris and isn't fully implemented */
|
| 158 |
CPUID_PSE36, |
| 159 |
.ext_features = CPUID_EXT_SSE3, |
| 160 |
.ext2_features = (PPRO_FEATURES & 0x0183F3FF) |
|
| 161 |
CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX | |
| 162 |
CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT, |
| 163 |
.ext3_features = CPUID_EXT3_SVM, |
| 164 |
.xlevel = 0x8000000A,
|
| 165 |
}, |
| 166 |
#endif
|
| 167 |
{
|
| 168 |
.name = "qemu32",
|
| 169 |
.level = 2,
|
| 170 |
.family = 6,
|
| 171 |
.model = 3,
|
| 172 |
.stepping = 3,
|
| 173 |
.features = PPRO_FEATURES, |
| 174 |
.ext_features = CPUID_EXT_SSE3, |
| 175 |
.xlevel = 0,
|
| 176 |
}, |
| 177 |
{
|
| 178 |
.name = "486",
|
| 179 |
.level = 0,
|
| 180 |
.family = 4,
|
| 181 |
.model = 0,
|
| 182 |
.stepping = 0,
|
| 183 |
.features = I486_FEATURES, |
| 184 |
.xlevel = 0,
|
| 185 |
}, |
| 186 |
{
|
| 187 |
.name = "pentium",
|
| 188 |
.level = 1,
|
| 189 |
.family = 5,
|
| 190 |
.model = 4,
|
| 191 |
.stepping = 3,
|
| 192 |
.features = PENTIUM_FEATURES, |
| 193 |
.xlevel = 0,
|
| 194 |
}, |
| 195 |
{
|
| 196 |
.name = "pentium2",
|
| 197 |
.level = 2,
|
| 198 |
.family = 6,
|
| 199 |
.model = 5,
|
| 200 |
.stepping = 2,
|
| 201 |
.features = PENTIUM2_FEATURES, |
| 202 |
.xlevel = 0,
|
| 203 |
}, |
| 204 |
{
|
| 205 |
.name = "pentium3",
|
| 206 |
.level = 2,
|
| 207 |
.family = 6,
|
| 208 |
.model = 7,
|
| 209 |
.stepping = 3,
|
| 210 |
.features = PENTIUM3_FEATURES, |
| 211 |
.xlevel = 0,
|
| 212 |
}, |
| 213 |
{
|
| 214 |
.name = "athlon",
|
| 215 |
.level = 2,
|
| 216 |
.vendor1 = 0x68747541, /* "Auth" */ |
| 217 |
.vendor2 = 0x69746e65, /* "enti" */ |
| 218 |
.vendor3 = 0x444d4163, /* "cAMD" */ |
| 219 |
.family = 6,
|
| 220 |
.model = 2,
|
| 221 |
.stepping = 3,
|
| 222 |
.features = PPRO_FEATURES | PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR | CPUID_MCA, |
| 223 |
.ext2_features = (PPRO_FEATURES & 0x0183F3FF) | CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
|
| 224 |
.xlevel = 0x80000008,
|
| 225 |
}, |
| 226 |
}; |
| 227 |
|
| 228 |
static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model) |
| 229 |
{
|
| 230 |
unsigned int i; |
| 231 |
x86_def_t *def; |
| 232 |
|
| 233 |
char *s = strdup(cpu_model);
|
| 234 |
char *featurestr, *name = strtok(s, ","); |
| 235 |
uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0; |
| 236 |
uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0; |
| 237 |
int family = -1, model = -1, stepping = -1; |
| 238 |
|
| 239 |
def = NULL;
|
| 240 |
for (i = 0; i < sizeof(x86_defs) / sizeof(x86_def_t); i++) { |
| 241 |
if (strcmp(name, x86_defs[i].name) == 0) { |
| 242 |
def = &x86_defs[i]; |
| 243 |
break;
|
| 244 |
} |
| 245 |
} |
| 246 |
if (!def)
|
| 247 |
goto error;
|
| 248 |
memcpy(x86_cpu_def, def, sizeof(*def));
|
| 249 |
|
| 250 |
featurestr = strtok(NULL, ","); |
| 251 |
|
| 252 |
while (featurestr) {
|
| 253 |
char *val;
|
| 254 |
if (featurestr[0] == '+') { |
| 255 |
add_flagname_to_bitmaps(featurestr + 1, &plus_features, &plus_ext_features, &plus_ext2_features, &plus_ext3_features);
|
| 256 |
} else if (featurestr[0] == '-') { |
| 257 |
add_flagname_to_bitmaps(featurestr + 1, &minus_features, &minus_ext_features, &minus_ext2_features, &minus_ext3_features);
|
| 258 |
} else if ((val = strchr(featurestr, '='))) { |
| 259 |
*val = 0; val++;
|
| 260 |
if (!strcmp(featurestr, "family")) { |
| 261 |
char *err;
|
| 262 |
family = strtol(val, &err, 10);
|
| 263 |
if (!*val || *err || family < 0) { |
| 264 |
fprintf(stderr, "bad numerical value %s\n", val);
|
| 265 |
x86_cpu_def = 0;
|
| 266 |
goto error;
|
| 267 |
} |
| 268 |
x86_cpu_def->family = family; |
| 269 |
} else if (!strcmp(featurestr, "model")) { |
| 270 |
char *err;
|
| 271 |
model = strtol(val, &err, 10);
|
| 272 |
if (!*val || *err || model < 0 || model > 0xf) { |
| 273 |
fprintf(stderr, "bad numerical value %s\n", val);
|
| 274 |
x86_cpu_def = 0;
|
| 275 |
goto error;
|
| 276 |
} |
| 277 |
x86_cpu_def->model = model; |
| 278 |
} else if (!strcmp(featurestr, "stepping")) { |
| 279 |
char *err;
|
| 280 |
stepping = strtol(val, &err, 10);
|
| 281 |
if (!*val || *err || stepping < 0 || stepping > 0xf) { |
| 282 |
fprintf(stderr, "bad numerical value %s\n", val);
|
| 283 |
x86_cpu_def = 0;
|
| 284 |
goto error;
|
| 285 |
} |
| 286 |
x86_cpu_def->stepping = stepping; |
| 287 |
} else {
|
| 288 |
fprintf(stderr, "unrecognized feature %s\n", featurestr);
|
| 289 |
x86_cpu_def = 0;
|
| 290 |
goto error;
|
| 291 |
} |
| 292 |
} else {
|
| 293 |
fprintf(stderr, "feature string `%s' not in format (+feature|-feature|feature=xyz)\n", featurestr);
|
| 294 |
x86_cpu_def = 0;
|
| 295 |
goto error;
|
| 296 |
} |
| 297 |
featurestr = strtok(NULL, ","); |
| 298 |
} |
| 299 |
x86_cpu_def->features |= plus_features; |
| 300 |
x86_cpu_def->ext_features |= plus_ext_features; |
| 301 |
x86_cpu_def->ext2_features |= plus_ext2_features; |
| 302 |
x86_cpu_def->ext3_features |= plus_ext3_features; |
| 303 |
x86_cpu_def->features &= ~minus_features; |
| 304 |
x86_cpu_def->ext_features &= ~minus_ext_features; |
| 305 |
x86_cpu_def->ext2_features &= ~minus_ext2_features; |
| 306 |
x86_cpu_def->ext3_features &= ~minus_ext3_features; |
| 307 |
free(s); |
| 308 |
return 0; |
| 309 |
|
| 310 |
error:
|
| 311 |
free(s); |
| 312 |
return -1; |
| 313 |
} |
| 314 |
|
| 315 |
void x86_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...)) |
| 316 |
{
|
| 317 |
unsigned int i; |
| 318 |
|
| 319 |
for (i = 0; i < sizeof(x86_defs) / sizeof(x86_def_t); i++) |
| 320 |
(*cpu_fprintf)(f, "x86 %16s\n", x86_defs[i].name);
|
| 321 |
} |
| 322 |
|
| 323 |
static int cpu_x86_register (CPUX86State *env, const char *cpu_model) |
| 324 |
{
|
| 325 |
x86_def_t def1, *def = &def1; |
| 326 |
|
| 327 |
if (cpu_x86_find_by_name(def, cpu_model) < 0) |
| 328 |
return -1; |
| 329 |
if (def->vendor1) {
|
| 330 |
env->cpuid_vendor1 = def->vendor1; |
| 331 |
env->cpuid_vendor2 = def->vendor2; |
| 332 |
env->cpuid_vendor3 = def->vendor3; |
| 333 |
} else {
|
| 334 |
env->cpuid_vendor1 = 0x756e6547; /* "Genu" */ |
| 335 |
env->cpuid_vendor2 = 0x49656e69; /* "ineI" */ |
| 336 |
env->cpuid_vendor3 = 0x6c65746e; /* "ntel" */ |
| 337 |
} |
| 338 |
env->cpuid_level = def->level; |
| 339 |
env->cpuid_version = (def->family << 8) | (def->model << 4) | def->stepping; |
| 340 |
env->cpuid_features = def->features; |
| 341 |
env->pat = 0x0007040600070406ULL;
|
| 342 |
env->cpuid_ext_features = def->ext_features; |
| 343 |
env->cpuid_ext2_features = def->ext2_features; |
| 344 |
env->cpuid_xlevel = def->xlevel; |
| 345 |
env->cpuid_ext3_features = def->ext3_features; |
| 346 |
{
|
| 347 |
const char *model_id = "QEMU Virtual CPU version " QEMU_VERSION; |
| 348 |
int c, len, i;
|
| 349 |
len = strlen(model_id); |
| 350 |
for(i = 0; i < 48; i++) { |
| 351 |
if (i >= len)
|
| 352 |
c = '\0';
|
| 353 |
else
|
| 354 |
c = model_id[i]; |
| 355 |
env->cpuid_model[i >> 2] |= c << (8 * (i & 3)); |
| 356 |
} |
| 357 |
} |
| 358 |
return 0; |
| 359 |
} |
| 360 |
|
| 361 |
/* NOTE: must be called outside the CPU execute loop */
|
| 362 |
void cpu_reset(CPUX86State *env)
|
| 363 |
{
|
| 364 |
int i;
|
| 365 |
|
| 366 |
memset(env, 0, offsetof(CPUX86State, breakpoints));
|
| 367 |
|
| 368 |
tlb_flush(env, 1);
|
| 369 |
|
| 370 |
env->old_exception = -1;
|
| 371 |
|
| 372 |
/* init to reset state */
|
| 373 |
|
| 374 |
#ifdef CONFIG_SOFTMMU
|
| 375 |
env->hflags |= HF_SOFTMMU_MASK; |
| 376 |
#endif
|
| 377 |
env->hflags |= HF_GIF_MASK; |
| 378 |
|
| 379 |
cpu_x86_update_cr0(env, 0x60000010);
|
| 380 |
env->a20_mask = ~0x0;
|
| 381 |
env->smbase = 0x30000;
|
| 382 |
|
| 383 |
env->idt.limit = 0xffff;
|
| 384 |
env->gdt.limit = 0xffff;
|
| 385 |
env->ldt.limit = 0xffff;
|
| 386 |
env->ldt.flags = DESC_P_MASK; |
| 387 |
env->tr.limit = 0xffff;
|
| 388 |
env->tr.flags = DESC_P_MASK; |
| 389 |
|
| 390 |
cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff, 0); |
| 391 |
cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff, 0); |
| 392 |
cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff, 0); |
| 393 |
cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff, 0); |
| 394 |
cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff, 0); |
| 395 |
cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff, 0); |
| 396 |
|
| 397 |
env->eip = 0xfff0;
|
| 398 |
env->regs[R_EDX] = env->cpuid_version; |
| 399 |
|
| 400 |
env->eflags = 0x2;
|
| 401 |
|
| 402 |
/* FPU init */
|
| 403 |
for(i = 0;i < 8; i++) |
| 404 |
env->fptags[i] = 1;
|
| 405 |
env->fpuc = 0x37f;
|
| 406 |
|
| 407 |
env->mxcsr = 0x1f80;
|
| 408 |
} |
| 409 |
|
| 410 |
void cpu_x86_close(CPUX86State *env)
|
| 411 |
{
|
| 412 |
free(env); |
| 413 |
} |
| 414 |
|
| 415 |
/***********************************************************/
|
| 416 |
/* x86 debug */
|
| 417 |
|
| 418 |
static const char *cc_op_str[] = { |
| 419 |
"DYNAMIC",
|
| 420 |
"EFLAGS",
|
| 421 |
|
| 422 |
"MULB",
|
| 423 |
"MULW",
|
| 424 |
"MULL",
|
| 425 |
"MULQ",
|
| 426 |
|
| 427 |
"ADDB",
|
| 428 |
"ADDW",
|
| 429 |
"ADDL",
|
| 430 |
"ADDQ",
|
| 431 |
|
| 432 |
"ADCB",
|
| 433 |
"ADCW",
|
| 434 |
"ADCL",
|
| 435 |
"ADCQ",
|
| 436 |
|
| 437 |
"SUBB",
|
| 438 |
"SUBW",
|
| 439 |
"SUBL",
|
| 440 |
"SUBQ",
|
| 441 |
|
| 442 |
"SBBB",
|
| 443 |
"SBBW",
|
| 444 |
"SBBL",
|
| 445 |
"SBBQ",
|
| 446 |
|
| 447 |
"LOGICB",
|
| 448 |
"LOGICW",
|
| 449 |
"LOGICL",
|
| 450 |
"LOGICQ",
|
| 451 |
|
| 452 |
"INCB",
|
| 453 |
"INCW",
|
| 454 |
"INCL",
|
| 455 |
"INCQ",
|
| 456 |
|
| 457 |
"DECB",
|
| 458 |
"DECW",
|
| 459 |
"DECL",
|
| 460 |
"DECQ",
|
| 461 |
|
| 462 |
"SHLB",
|
| 463 |
"SHLW",
|
| 464 |
"SHLL",
|
| 465 |
"SHLQ",
|
| 466 |
|
| 467 |
"SARB",
|
| 468 |
"SARW",
|
| 469 |
"SARL",
|
| 470 |
"SARQ",
|
| 471 |
}; |
| 472 |
|
| 473 |
void cpu_dump_state(CPUState *env, FILE *f,
|
| 474 |
int (*cpu_fprintf)(FILE *f, const char *fmt, ...), |
| 475 |
int flags)
|
| 476 |
{
|
| 477 |
int eflags, i, nb;
|
| 478 |
char cc_op_name[32]; |
| 479 |
static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" }; |
| 480 |
|
| 481 |
eflags = env->eflags; |
| 482 |
#ifdef TARGET_X86_64
|
| 483 |
if (env->hflags & HF_CS64_MASK) {
|
| 484 |
cpu_fprintf(f, |
| 485 |
"RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n" |
| 486 |
"RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n" |
| 487 |
"R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n" |
| 488 |
"R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n" |
| 489 |
"RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n", |
| 490 |
env->regs[R_EAX], |
| 491 |
env->regs[R_EBX], |
| 492 |
env->regs[R_ECX], |
| 493 |
env->regs[R_EDX], |
| 494 |
env->regs[R_ESI], |
| 495 |
env->regs[R_EDI], |
| 496 |
env->regs[R_EBP], |
| 497 |
env->regs[R_ESP], |
| 498 |
env->regs[8],
|
| 499 |
env->regs[9],
|
| 500 |
env->regs[10],
|
| 501 |
env->regs[11],
|
| 502 |
env->regs[12],
|
| 503 |
env->regs[13],
|
| 504 |
env->regs[14],
|
| 505 |
env->regs[15],
|
| 506 |
env->eip, eflags, |
| 507 |
eflags & DF_MASK ? 'D' : '-', |
| 508 |
eflags & CC_O ? 'O' : '-', |
| 509 |
eflags & CC_S ? 'S' : '-', |
| 510 |
eflags & CC_Z ? 'Z' : '-', |
| 511 |
eflags & CC_A ? 'A' : '-', |
| 512 |
eflags & CC_P ? 'P' : '-', |
| 513 |
eflags & CC_C ? 'C' : '-', |
| 514 |
env->hflags & HF_CPL_MASK, |
| 515 |
(env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
|
| 516 |
(int)(env->a20_mask >> 20) & 1, |
| 517 |
(env->hflags >> HF_SMM_SHIFT) & 1,
|
| 518 |
env->halted); |
| 519 |
} else
|
| 520 |
#endif
|
| 521 |
{
|
| 522 |
cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
|
| 523 |
"ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
|
| 524 |
"EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
|
| 525 |
(uint32_t)env->regs[R_EAX], |
| 526 |
(uint32_t)env->regs[R_EBX], |
| 527 |
(uint32_t)env->regs[R_ECX], |
| 528 |
(uint32_t)env->regs[R_EDX], |
| 529 |
(uint32_t)env->regs[R_ESI], |
| 530 |
(uint32_t)env->regs[R_EDI], |
| 531 |
(uint32_t)env->regs[R_EBP], |
| 532 |
(uint32_t)env->regs[R_ESP], |
| 533 |
(uint32_t)env->eip, eflags, |
| 534 |
eflags & DF_MASK ? 'D' : '-', |
| 535 |
eflags & CC_O ? 'O' : '-', |
| 536 |
eflags & CC_S ? 'S' : '-', |
| 537 |
eflags & CC_Z ? 'Z' : '-', |
| 538 |
eflags & CC_A ? 'A' : '-', |
| 539 |
eflags & CC_P ? 'P' : '-', |
| 540 |
eflags & CC_C ? 'C' : '-', |
| 541 |
env->hflags & HF_CPL_MASK, |
| 542 |
(env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
|
| 543 |
(int)(env->a20_mask >> 20) & 1, |
| 544 |
(env->hflags >> HF_SMM_SHIFT) & 1,
|
| 545 |
env->halted); |
| 546 |
} |
| 547 |
|
| 548 |
#ifdef TARGET_X86_64
|
| 549 |
if (env->hflags & HF_LMA_MASK) {
|
| 550 |
for(i = 0; i < 6; i++) { |
| 551 |
SegmentCache *sc = &env->segs[i]; |
| 552 |
cpu_fprintf(f, "%s =%04x %016" PRIx64 " %08x %08x\n", |
| 553 |
seg_name[i], |
| 554 |
sc->selector, |
| 555 |
sc->base, |
| 556 |
sc->limit, |
| 557 |
sc->flags); |
| 558 |
} |
| 559 |
cpu_fprintf(f, "LDT=%04x %016" PRIx64 " %08x %08x\n", |
| 560 |
env->ldt.selector, |
| 561 |
env->ldt.base, |
| 562 |
env->ldt.limit, |
| 563 |
env->ldt.flags); |
| 564 |
cpu_fprintf(f, "TR =%04x %016" PRIx64 " %08x %08x\n", |
| 565 |
env->tr.selector, |
| 566 |
env->tr.base, |
| 567 |
env->tr.limit, |
| 568 |
env->tr.flags); |
| 569 |
cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n", |
| 570 |
env->gdt.base, env->gdt.limit); |
| 571 |
cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n", |
| 572 |
env->idt.base, env->idt.limit); |
| 573 |
cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n", |
| 574 |
(uint32_t)env->cr[0],
|
| 575 |
env->cr[2],
|
| 576 |
env->cr[3],
|
| 577 |
(uint32_t)env->cr[4]);
|
| 578 |
} else
|
| 579 |
#endif
|
| 580 |
{
|
| 581 |
for(i = 0; i < 6; i++) { |
| 582 |
SegmentCache *sc = &env->segs[i]; |
| 583 |
cpu_fprintf(f, "%s =%04x %08x %08x %08x\n",
|
| 584 |
seg_name[i], |
| 585 |
sc->selector, |
| 586 |
(uint32_t)sc->base, |
| 587 |
sc->limit, |
| 588 |
sc->flags); |
| 589 |
} |
| 590 |
cpu_fprintf(f, "LDT=%04x %08x %08x %08x\n",
|
| 591 |
env->ldt.selector, |
| 592 |
(uint32_t)env->ldt.base, |
| 593 |
env->ldt.limit, |
| 594 |
env->ldt.flags); |
| 595 |
cpu_fprintf(f, "TR =%04x %08x %08x %08x\n",
|
| 596 |
env->tr.selector, |
| 597 |
(uint32_t)env->tr.base, |
| 598 |
env->tr.limit, |
| 599 |
env->tr.flags); |
| 600 |
cpu_fprintf(f, "GDT= %08x %08x\n",
|
| 601 |
(uint32_t)env->gdt.base, env->gdt.limit); |
| 602 |
cpu_fprintf(f, "IDT= %08x %08x\n",
|
| 603 |
(uint32_t)env->idt.base, env->idt.limit); |
| 604 |
cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
|
| 605 |
(uint32_t)env->cr[0],
|
| 606 |
(uint32_t)env->cr[2],
|
| 607 |
(uint32_t)env->cr[3],
|
| 608 |
(uint32_t)env->cr[4]);
|
| 609 |
} |
| 610 |
if (flags & X86_DUMP_CCOP) {
|
| 611 |
if ((unsigned)env->cc_op < CC_OP_NB) |
| 612 |
snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]); |
| 613 |
else
|
| 614 |
snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op); |
| 615 |
#ifdef TARGET_X86_64
|
| 616 |
if (env->hflags & HF_CS64_MASK) {
|
| 617 |
cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n", |
| 618 |
env->cc_src, env->cc_dst, |
| 619 |
cc_op_name); |
| 620 |
} else
|
| 621 |
#endif
|
| 622 |
{
|
| 623 |
cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
|
| 624 |
(uint32_t)env->cc_src, (uint32_t)env->cc_dst, |
| 625 |
cc_op_name); |
| 626 |
} |
| 627 |
} |
| 628 |
if (flags & X86_DUMP_FPU) {
|
| 629 |
int fptag;
|
| 630 |
fptag = 0;
|
| 631 |
for(i = 0; i < 8; i++) { |
| 632 |
fptag |= ((!env->fptags[i]) << i); |
| 633 |
} |
| 634 |
cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
|
| 635 |
env->fpuc, |
| 636 |
(env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11, |
| 637 |
env->fpstt, |
| 638 |
fptag, |
| 639 |
env->mxcsr); |
| 640 |
for(i=0;i<8;i++) { |
| 641 |
#if defined(USE_X86LDOUBLE)
|
| 642 |
union {
|
| 643 |
long double d; |
| 644 |
struct {
|
| 645 |
uint64_t lower; |
| 646 |
uint16_t upper; |
| 647 |
} l; |
| 648 |
} tmp; |
| 649 |
tmp.d = env->fpregs[i].d; |
| 650 |
cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x", |
| 651 |
i, tmp.l.lower, tmp.l.upper); |
| 652 |
#else
|
| 653 |
cpu_fprintf(f, "FPR%d=%016" PRIx64,
|
| 654 |
i, env->fpregs[i].mmx.q); |
| 655 |
#endif
|
| 656 |
if ((i & 1) == 1) |
| 657 |
cpu_fprintf(f, "\n");
|
| 658 |
else
|
| 659 |
cpu_fprintf(f, " ");
|
| 660 |
} |
| 661 |
if (env->hflags & HF_CS64_MASK)
|
| 662 |
nb = 16;
|
| 663 |
else
|
| 664 |
nb = 8;
|
| 665 |
for(i=0;i<nb;i++) { |
| 666 |
cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
|
| 667 |
i, |
| 668 |
env->xmm_regs[i].XMM_L(3),
|
| 669 |
env->xmm_regs[i].XMM_L(2),
|
| 670 |
env->xmm_regs[i].XMM_L(1),
|
| 671 |
env->xmm_regs[i].XMM_L(0));
|
| 672 |
if ((i & 1) == 1) |
| 673 |
cpu_fprintf(f, "\n");
|
| 674 |
else
|
| 675 |
cpu_fprintf(f, " ");
|
| 676 |
} |
| 677 |
} |
| 678 |
} |
| 679 |
|
| 680 |
/***********************************************************/
|
| 681 |
/* x86 mmu */
|
| 682 |
/* XXX: add PGE support */
|
| 683 |
|
| 684 |
void cpu_x86_set_a20(CPUX86State *env, int a20_state) |
| 685 |
{
|
| 686 |
a20_state = (a20_state != 0);
|
| 687 |
if (a20_state != ((env->a20_mask >> 20) & 1)) { |
| 688 |
#if defined(DEBUG_MMU)
|
| 689 |
printf("A20 update: a20=%d\n", a20_state);
|
| 690 |
#endif
|
| 691 |
/* if the cpu is currently executing code, we must unlink it and
|
| 692 |
all the potentially executing TB */
|
| 693 |
cpu_interrupt(env, CPU_INTERRUPT_EXITTB); |
| 694 |
|
| 695 |
/* when a20 is changed, all the MMU mappings are invalid, so
|
| 696 |
we must flush everything */
|
| 697 |
tlb_flush(env, 1);
|
| 698 |
env->a20_mask = (~0x100000) | (a20_state << 20); |
| 699 |
} |
| 700 |
} |
| 701 |
|
| 702 |
void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
|
| 703 |
{
|
| 704 |
int pe_state;
|
| 705 |
|
| 706 |
#if defined(DEBUG_MMU)
|
| 707 |
printf("CR0 update: CR0=0x%08x\n", new_cr0);
|
| 708 |
#endif
|
| 709 |
if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
|
| 710 |
(env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
|
| 711 |
tlb_flush(env, 1);
|
| 712 |
} |
| 713 |
|
| 714 |
#ifdef TARGET_X86_64
|
| 715 |
if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) && |
| 716 |
(env->efer & MSR_EFER_LME)) {
|
| 717 |
/* enter in long mode */
|
| 718 |
/* XXX: generate an exception */
|
| 719 |
if (!(env->cr[4] & CR4_PAE_MASK)) |
| 720 |
return;
|
| 721 |
env->efer |= MSR_EFER_LMA; |
| 722 |
env->hflags |= HF_LMA_MASK; |
| 723 |
} else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) && |
| 724 |
(env->efer & MSR_EFER_LMA)) {
|
| 725 |
/* exit long mode */
|
| 726 |
env->efer &= ~MSR_EFER_LMA; |
| 727 |
env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK); |
| 728 |
env->eip &= 0xffffffff;
|
| 729 |
} |
| 730 |
#endif
|
| 731 |
env->cr[0] = new_cr0 | CR0_ET_MASK;
|
| 732 |
|
| 733 |
/* update PE flag in hidden flags */
|
| 734 |
pe_state = (env->cr[0] & CR0_PE_MASK);
|
| 735 |
env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT); |
| 736 |
/* ensure that ADDSEG is always set in real mode */
|
| 737 |
env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
|
| 738 |
/* update FPU flags */
|
| 739 |
env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) | |
| 740 |
((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
|
| 741 |
} |
| 742 |
|
| 743 |
/* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
|
| 744 |
the PDPT */
|
| 745 |
void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
|
| 746 |
{
|
| 747 |
env->cr[3] = new_cr3;
|
| 748 |
if (env->cr[0] & CR0_PG_MASK) { |
| 749 |
#if defined(DEBUG_MMU)
|
| 750 |
printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3); |
| 751 |
#endif
|
| 752 |
tlb_flush(env, 0);
|
| 753 |
} |
| 754 |
} |
| 755 |
|
| 756 |
void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
|
| 757 |
{
|
| 758 |
#if defined(DEBUG_MMU)
|
| 759 |
printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]); |
| 760 |
#endif
|
| 761 |
if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
|
| 762 |
(env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
|
| 763 |
tlb_flush(env, 1);
|
| 764 |
} |
| 765 |
/* SSE handling */
|
| 766 |
if (!(env->cpuid_features & CPUID_SSE))
|
| 767 |
new_cr4 &= ~CR4_OSFXSR_MASK; |
| 768 |
if (new_cr4 & CR4_OSFXSR_MASK)
|
| 769 |
env->hflags |= HF_OSFXSR_MASK; |
| 770 |
else
|
| 771 |
env->hflags &= ~HF_OSFXSR_MASK; |
| 772 |
|
| 773 |
env->cr[4] = new_cr4;
|
| 774 |
} |
| 775 |
|
| 776 |
/* XXX: also flush 4MB pages */
|
| 777 |
void cpu_x86_flush_tlb(CPUX86State *env, target_ulong addr)
|
| 778 |
{
|
| 779 |
tlb_flush_page(env, addr); |
| 780 |
} |
| 781 |
|
| 782 |
#if defined(CONFIG_USER_ONLY)
|
| 783 |
|
| 784 |
int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
|
| 785 |
int is_write, int mmu_idx, int is_softmmu) |
| 786 |
{
|
| 787 |
/* user mode only emulation */
|
| 788 |
is_write &= 1;
|
| 789 |
env->cr[2] = addr;
|
| 790 |
env->error_code = (is_write << PG_ERROR_W_BIT); |
| 791 |
env->error_code |= PG_ERROR_U_MASK; |
| 792 |
env->exception_index = EXCP0E_PAGE; |
| 793 |
return 1; |
| 794 |
} |
| 795 |
|
| 796 |
target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr) |
| 797 |
{
|
| 798 |
return addr;
|
| 799 |
} |
| 800 |
|
| 801 |
#else
|
| 802 |
|
| 803 |
/* XXX: This value should match the one returned by CPUID
|
| 804 |
* and in exec.c */
|
| 805 |
#if defined(USE_KQEMU)
|
| 806 |
#define PHYS_ADDR_MASK 0xfffff000L |
| 807 |
#else
|
| 808 |
# if defined(TARGET_X86_64)
|
| 809 |
# define PHYS_ADDR_MASK 0xfffffff000L |
| 810 |
# else
|
| 811 |
# define PHYS_ADDR_MASK 0xffffff000L |
| 812 |
# endif
|
| 813 |
#endif
|
| 814 |
|
| 815 |
/* return value:
|
| 816 |
-1 = cannot handle fault
|
| 817 |
0 = nothing more to do
|
| 818 |
1 = generate PF fault
|
| 819 |
2 = soft MMU activation required for this block
|
| 820 |
*/
|
| 821 |
int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
|
| 822 |
int is_write1, int mmu_idx, int is_softmmu) |
| 823 |
{
|
| 824 |
uint64_t ptep, pte; |
| 825 |
target_ulong pde_addr, pte_addr; |
| 826 |
int error_code, is_dirty, prot, page_size, ret, is_write, is_user;
|
| 827 |
target_phys_addr_t paddr; |
| 828 |
uint32_t page_offset; |
| 829 |
target_ulong vaddr, virt_addr; |
| 830 |
|
| 831 |
is_user = mmu_idx == MMU_USER_IDX; |
| 832 |
#if defined(DEBUG_MMU)
|
| 833 |
printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n", |
| 834 |
addr, is_write1, is_user, env->eip); |
| 835 |
#endif
|
| 836 |
is_write = is_write1 & 1;
|
| 837 |
|
| 838 |
if (!(env->cr[0] & CR0_PG_MASK)) { |
| 839 |
pte = addr; |
| 840 |
virt_addr = addr & TARGET_PAGE_MASK; |
| 841 |
prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; |
| 842 |
page_size = 4096;
|
| 843 |
goto do_mapping;
|
| 844 |
} |
| 845 |
|
| 846 |
if (env->cr[4] & CR4_PAE_MASK) { |
| 847 |
uint64_t pde, pdpe; |
| 848 |
target_ulong pdpe_addr; |
| 849 |
|
| 850 |
#ifdef TARGET_X86_64
|
| 851 |
if (env->hflags & HF_LMA_MASK) {
|
| 852 |
uint64_t pml4e_addr, pml4e; |
| 853 |
int32_t sext; |
| 854 |
|
| 855 |
/* test virtual address sign extension */
|
| 856 |
sext = (int64_t)addr >> 47;
|
| 857 |
if (sext != 0 && sext != -1) { |
| 858 |
env->error_code = 0;
|
| 859 |
env->exception_index = EXCP0D_GPF; |
| 860 |
return 1; |
| 861 |
} |
| 862 |
|
| 863 |
pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) & |
| 864 |
env->a20_mask; |
| 865 |
pml4e = ldq_phys(pml4e_addr); |
| 866 |
if (!(pml4e & PG_PRESENT_MASK)) {
|
| 867 |
error_code = 0;
|
| 868 |
goto do_fault;
|
| 869 |
} |
| 870 |
if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
|
| 871 |
error_code = PG_ERROR_RSVD_MASK; |
| 872 |
goto do_fault;
|
| 873 |
} |
| 874 |
if (!(pml4e & PG_ACCESSED_MASK)) {
|
| 875 |
pml4e |= PG_ACCESSED_MASK; |
| 876 |
stl_phys_notdirty(pml4e_addr, pml4e); |
| 877 |
} |
| 878 |
ptep = pml4e ^ PG_NX_MASK; |
| 879 |
pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) & |
| 880 |
env->a20_mask; |
| 881 |
pdpe = ldq_phys(pdpe_addr); |
| 882 |
if (!(pdpe & PG_PRESENT_MASK)) {
|
| 883 |
error_code = 0;
|
| 884 |
goto do_fault;
|
| 885 |
} |
| 886 |
if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
|
| 887 |
error_code = PG_ERROR_RSVD_MASK; |
| 888 |
goto do_fault;
|
| 889 |
} |
| 890 |
ptep &= pdpe ^ PG_NX_MASK; |
| 891 |
if (!(pdpe & PG_ACCESSED_MASK)) {
|
| 892 |
pdpe |= PG_ACCESSED_MASK; |
| 893 |
stl_phys_notdirty(pdpe_addr, pdpe); |
| 894 |
} |
| 895 |
} else
|
| 896 |
#endif
|
| 897 |
{
|
| 898 |
/* XXX: load them when cr3 is loaded ? */
|
| 899 |
pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) & |
| 900 |
env->a20_mask; |
| 901 |
pdpe = ldq_phys(pdpe_addr); |
| 902 |
if (!(pdpe & PG_PRESENT_MASK)) {
|
| 903 |
error_code = 0;
|
| 904 |
goto do_fault;
|
| 905 |
} |
| 906 |
ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK; |
| 907 |
} |
| 908 |
|
| 909 |
pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) & |
| 910 |
env->a20_mask; |
| 911 |
pde = ldq_phys(pde_addr); |
| 912 |
if (!(pde & PG_PRESENT_MASK)) {
|
| 913 |
error_code = 0;
|
| 914 |
goto do_fault;
|
| 915 |
} |
| 916 |
if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
|
| 917 |
error_code = PG_ERROR_RSVD_MASK; |
| 918 |
goto do_fault;
|
| 919 |
} |
| 920 |
ptep &= pde ^ PG_NX_MASK; |
| 921 |
if (pde & PG_PSE_MASK) {
|
| 922 |
/* 2 MB page */
|
| 923 |
page_size = 2048 * 1024; |
| 924 |
ptep ^= PG_NX_MASK; |
| 925 |
if ((ptep & PG_NX_MASK) && is_write1 == 2) |
| 926 |
goto do_fault_protect;
|
| 927 |
if (is_user) {
|
| 928 |
if (!(ptep & PG_USER_MASK))
|
| 929 |
goto do_fault_protect;
|
| 930 |
if (is_write && !(ptep & PG_RW_MASK))
|
| 931 |
goto do_fault_protect;
|
| 932 |
} else {
|
| 933 |
if ((env->cr[0] & CR0_WP_MASK) && |
| 934 |
is_write && !(ptep & PG_RW_MASK)) |
| 935 |
goto do_fault_protect;
|
| 936 |
} |
| 937 |
is_dirty = is_write && !(pde & PG_DIRTY_MASK); |
| 938 |
if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
|
| 939 |
pde |= PG_ACCESSED_MASK; |
| 940 |
if (is_dirty)
|
| 941 |
pde |= PG_DIRTY_MASK; |
| 942 |
stl_phys_notdirty(pde_addr, pde); |
| 943 |
} |
| 944 |
/* align to page_size */
|
| 945 |
pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff); |
| 946 |
virt_addr = addr & ~(page_size - 1);
|
| 947 |
} else {
|
| 948 |
/* 4 KB page */
|
| 949 |
if (!(pde & PG_ACCESSED_MASK)) {
|
| 950 |
pde |= PG_ACCESSED_MASK; |
| 951 |
stl_phys_notdirty(pde_addr, pde); |
| 952 |
} |
| 953 |
pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) & |
| 954 |
env->a20_mask; |
| 955 |
pte = ldq_phys(pte_addr); |
| 956 |
if (!(pte & PG_PRESENT_MASK)) {
|
| 957 |
error_code = 0;
|
| 958 |
goto do_fault;
|
| 959 |
} |
| 960 |
if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
|
| 961 |
error_code = PG_ERROR_RSVD_MASK; |
| 962 |
goto do_fault;
|
| 963 |
} |
| 964 |
/* combine pde and pte nx, user and rw protections */
|
| 965 |
ptep &= pte ^ PG_NX_MASK; |
| 966 |
ptep ^= PG_NX_MASK; |
| 967 |
if ((ptep & PG_NX_MASK) && is_write1 == 2) |
| 968 |
goto do_fault_protect;
|
| 969 |
if (is_user) {
|
| 970 |
if (!(ptep & PG_USER_MASK))
|
| 971 |
goto do_fault_protect;
|
| 972 |
if (is_write && !(ptep & PG_RW_MASK))
|
| 973 |
goto do_fault_protect;
|
| 974 |
} else {
|
| 975 |
if ((env->cr[0] & CR0_WP_MASK) && |
| 976 |
is_write && !(ptep & PG_RW_MASK)) |
| 977 |
goto do_fault_protect;
|
| 978 |
} |
| 979 |
is_dirty = is_write && !(pte & PG_DIRTY_MASK); |
| 980 |
if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
|
| 981 |
pte |= PG_ACCESSED_MASK; |
| 982 |
if (is_dirty)
|
| 983 |
pte |= PG_DIRTY_MASK; |
| 984 |
stl_phys_notdirty(pte_addr, pte); |
| 985 |
} |
| 986 |
page_size = 4096;
|
| 987 |
virt_addr = addr & ~0xfff;
|
| 988 |
pte = pte & (PHYS_ADDR_MASK | 0xfff);
|
| 989 |
} |
| 990 |
} else {
|
| 991 |
uint32_t pde; |
| 992 |
|
| 993 |
/* page directory entry */
|
| 994 |
pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & |
| 995 |
env->a20_mask; |
| 996 |
pde = ldl_phys(pde_addr); |
| 997 |
if (!(pde & PG_PRESENT_MASK)) {
|
| 998 |
error_code = 0;
|
| 999 |
goto do_fault;
|
| 1000 |
} |
| 1001 |
/* if PSE bit is set, then we use a 4MB page */
|
| 1002 |
if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) { |
| 1003 |
page_size = 4096 * 1024; |
| 1004 |
if (is_user) {
|
| 1005 |
if (!(pde & PG_USER_MASK))
|
| 1006 |
goto do_fault_protect;
|
| 1007 |
if (is_write && !(pde & PG_RW_MASK))
|
| 1008 |
goto do_fault_protect;
|
| 1009 |
} else {
|
| 1010 |
if ((env->cr[0] & CR0_WP_MASK) && |
| 1011 |
is_write && !(pde & PG_RW_MASK)) |
| 1012 |
goto do_fault_protect;
|
| 1013 |
} |
| 1014 |
is_dirty = is_write && !(pde & PG_DIRTY_MASK); |
| 1015 |
if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
|
| 1016 |
pde |= PG_ACCESSED_MASK; |
| 1017 |
if (is_dirty)
|
| 1018 |
pde |= PG_DIRTY_MASK; |
| 1019 |
stl_phys_notdirty(pde_addr, pde); |
| 1020 |
} |
| 1021 |
|
| 1022 |
pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */ |
| 1023 |
ptep = pte; |
| 1024 |
virt_addr = addr & ~(page_size - 1);
|
| 1025 |
} else {
|
| 1026 |
if (!(pde & PG_ACCESSED_MASK)) {
|
| 1027 |
pde |= PG_ACCESSED_MASK; |
| 1028 |
stl_phys_notdirty(pde_addr, pde); |
| 1029 |
} |
| 1030 |
|
| 1031 |
/* page directory entry */
|
| 1032 |
pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & |
| 1033 |
env->a20_mask; |
| 1034 |
pte = ldl_phys(pte_addr); |
| 1035 |
if (!(pte & PG_PRESENT_MASK)) {
|
| 1036 |
error_code = 0;
|
| 1037 |
goto do_fault;
|
| 1038 |
} |
| 1039 |
/* combine pde and pte user and rw protections */
|
| 1040 |
ptep = pte & pde; |
| 1041 |
if (is_user) {
|
| 1042 |
if (!(ptep & PG_USER_MASK))
|
| 1043 |
goto do_fault_protect;
|
| 1044 |
if (is_write && !(ptep & PG_RW_MASK))
|
| 1045 |
goto do_fault_protect;
|
| 1046 |
} else {
|
| 1047 |
if ((env->cr[0] & CR0_WP_MASK) && |
| 1048 |
is_write && !(ptep & PG_RW_MASK)) |
| 1049 |
goto do_fault_protect;
|
| 1050 |
} |
| 1051 |
is_dirty = is_write && !(pte & PG_DIRTY_MASK); |
| 1052 |
if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
|
| 1053 |
pte |= PG_ACCESSED_MASK; |
| 1054 |
if (is_dirty)
|
| 1055 |
pte |= PG_DIRTY_MASK; |
| 1056 |
stl_phys_notdirty(pte_addr, pte); |
| 1057 |
} |
| 1058 |
page_size = 4096;
|
| 1059 |
virt_addr = addr & ~0xfff;
|
| 1060 |
} |
| 1061 |
} |
| 1062 |
/* the page can be put in the TLB */
|
| 1063 |
prot = PAGE_READ; |
| 1064 |
if (!(ptep & PG_NX_MASK))
|
| 1065 |
prot |= PAGE_EXEC; |
| 1066 |
if (pte & PG_DIRTY_MASK) {
|
| 1067 |
/* only set write access if already dirty... otherwise wait
|
| 1068 |
for dirty access */
|
| 1069 |
if (is_user) {
|
| 1070 |
if (ptep & PG_RW_MASK)
|
| 1071 |
prot |= PAGE_WRITE; |
| 1072 |
} else {
|
| 1073 |
if (!(env->cr[0] & CR0_WP_MASK) || |
| 1074 |
(ptep & PG_RW_MASK)) |
| 1075 |
prot |= PAGE_WRITE; |
| 1076 |
} |
| 1077 |
} |
| 1078 |
do_mapping:
|
| 1079 |
pte = pte & env->a20_mask; |
| 1080 |
|
| 1081 |
/* Even if 4MB pages, we map only one 4KB page in the cache to
|
| 1082 |
avoid filling it too fast */
|
| 1083 |
page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
|
| 1084 |
paddr = (pte & TARGET_PAGE_MASK) + page_offset; |
| 1085 |
vaddr = virt_addr + page_offset; |
| 1086 |
|
| 1087 |
ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu); |
| 1088 |
return ret;
|
| 1089 |
do_fault_protect:
|
| 1090 |
error_code = PG_ERROR_P_MASK; |
| 1091 |
do_fault:
|
| 1092 |
error_code |= (is_write << PG_ERROR_W_BIT); |
| 1093 |
if (is_user)
|
| 1094 |
error_code |= PG_ERROR_U_MASK; |
| 1095 |
if (is_write1 == 2 && |
| 1096 |
(env->efer & MSR_EFER_NXE) && |
| 1097 |
(env->cr[4] & CR4_PAE_MASK))
|
| 1098 |
error_code |= PG_ERROR_I_D_MASK; |
| 1099 |
if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) { |
| 1100 |
/* cr2 is not modified in case of exceptions */
|
| 1101 |
stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
|
| 1102 |
addr); |
| 1103 |
} else {
|
| 1104 |
env->cr[2] = addr;
|
| 1105 |
} |
| 1106 |
env->error_code = error_code; |
| 1107 |
env->exception_index = EXCP0E_PAGE; |
| 1108 |
return 1; |
| 1109 |
} |
| 1110 |
|
| 1111 |
target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr) |
| 1112 |
{
|
| 1113 |
target_ulong pde_addr, pte_addr; |
| 1114 |
uint64_t pte; |
| 1115 |
target_phys_addr_t paddr; |
| 1116 |
uint32_t page_offset; |
| 1117 |
int page_size;
|
| 1118 |
|
| 1119 |
if (env->cr[4] & CR4_PAE_MASK) { |
| 1120 |
target_ulong pdpe_addr; |
| 1121 |
uint64_t pde, pdpe; |
| 1122 |
|
| 1123 |
#ifdef TARGET_X86_64
|
| 1124 |
if (env->hflags & HF_LMA_MASK) {
|
| 1125 |
uint64_t pml4e_addr, pml4e; |
| 1126 |
int32_t sext; |
| 1127 |
|
| 1128 |
/* test virtual address sign extension */
|
| 1129 |
sext = (int64_t)addr >> 47;
|
| 1130 |
if (sext != 0 && sext != -1) |
| 1131 |
return -1; |
| 1132 |
|
| 1133 |
pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) & |
| 1134 |
env->a20_mask; |
| 1135 |
pml4e = ldq_phys(pml4e_addr); |
| 1136 |
if (!(pml4e & PG_PRESENT_MASK))
|
| 1137 |
return -1; |
| 1138 |
|
| 1139 |
pdpe_addr = ((pml4e & ~0xfff) + (((addr >> 30) & 0x1ff) << 3)) & |
| 1140 |
env->a20_mask; |
| 1141 |
pdpe = ldq_phys(pdpe_addr); |
| 1142 |
if (!(pdpe & PG_PRESENT_MASK))
|
| 1143 |
return -1; |
| 1144 |
} else
|
| 1145 |
#endif
|
| 1146 |
{
|
| 1147 |
pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) & |
| 1148 |
env->a20_mask; |
| 1149 |
pdpe = ldq_phys(pdpe_addr); |
| 1150 |
if (!(pdpe & PG_PRESENT_MASK))
|
| 1151 |
return -1; |
| 1152 |
} |
| 1153 |
|
| 1154 |
pde_addr = ((pdpe & ~0xfff) + (((addr >> 21) & 0x1ff) << 3)) & |
| 1155 |
env->a20_mask; |
| 1156 |
pde = ldq_phys(pde_addr); |
| 1157 |
if (!(pde & PG_PRESENT_MASK)) {
|
| 1158 |
return -1; |
| 1159 |
} |
| 1160 |
if (pde & PG_PSE_MASK) {
|
| 1161 |
/* 2 MB page */
|
| 1162 |
page_size = 2048 * 1024; |
| 1163 |
pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */ |
| 1164 |
} else {
|
| 1165 |
/* 4 KB page */
|
| 1166 |
pte_addr = ((pde & ~0xfff) + (((addr >> 12) & 0x1ff) << 3)) & |
| 1167 |
env->a20_mask; |
| 1168 |
page_size = 4096;
|
| 1169 |
pte = ldq_phys(pte_addr); |
| 1170 |
} |
| 1171 |
} else {
|
| 1172 |
uint32_t pde; |
| 1173 |
|
| 1174 |
if (!(env->cr[0] & CR0_PG_MASK)) { |
| 1175 |
pte = addr; |
| 1176 |
page_size = 4096;
|
| 1177 |
} else {
|
| 1178 |
/* page directory entry */
|
| 1179 |
pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask; |
| 1180 |
pde = ldl_phys(pde_addr); |
| 1181 |
if (!(pde & PG_PRESENT_MASK))
|
| 1182 |
return -1; |
| 1183 |
if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) { |
| 1184 |
pte = pde & ~0x003ff000; /* align to 4MB */ |
| 1185 |
page_size = 4096 * 1024; |
| 1186 |
} else {
|
| 1187 |
/* page directory entry */
|
| 1188 |
pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask; |
| 1189 |
pte = ldl_phys(pte_addr); |
| 1190 |
if (!(pte & PG_PRESENT_MASK))
|
| 1191 |
return -1; |
| 1192 |
page_size = 4096;
|
| 1193 |
} |
| 1194 |
} |
| 1195 |
pte = pte & env->a20_mask; |
| 1196 |
} |
| 1197 |
|
| 1198 |
page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
|
| 1199 |
paddr = (pte & TARGET_PAGE_MASK) + page_offset; |
| 1200 |
return paddr;
|
| 1201 |
} |
| 1202 |
#endif /* !CONFIG_USER_ONLY */ |