4 * Copyright (c) 2003 Fabrice Bellard
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.
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.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
20 #include "qemu/osdep.h"
21 #include "qemu/main-loop.h"
23 #include "exec/helper-proto.h"
24 #include "exec/exec-all.h"
25 #include "exec/cpu_ldst.h"
26 #include "exec/address-spaces.h"
28 void helper_outb(CPUX86State *env, uint32_t port, uint32_t data)
30 #ifdef CONFIG_USER_ONLY
31 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", port, data);
33 address_space_stb(&address_space_io, port, data,
34 cpu_get_mem_attrs(env), NULL);
38 target_ulong helper_inb(CPUX86State *env, uint32_t port)
40 #ifdef CONFIG_USER_ONLY
41 fprintf(stderr, "inb: port=0x%04x\n", port);
44 return address_space_ldub(&address_space_io, port,
45 cpu_get_mem_attrs(env), NULL);
49 void helper_outw(CPUX86State *env, uint32_t port, uint32_t data)
51 #ifdef CONFIG_USER_ONLY
52 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", port, data);
54 address_space_stw(&address_space_io, port, data,
55 cpu_get_mem_attrs(env), NULL);
59 target_ulong helper_inw(CPUX86State *env, uint32_t port)
61 #ifdef CONFIG_USER_ONLY
62 fprintf(stderr, "inw: port=0x%04x\n", port);
65 return address_space_lduw(&address_space_io, port,
66 cpu_get_mem_attrs(env), NULL);
70 void helper_outl(CPUX86State *env, uint32_t port, uint32_t data)
72 #ifdef CONFIG_USER_ONLY
73 fprintf(stderr, "outw: port=0x%04x, data=%08x\n", port, data);
75 address_space_stl(&address_space_io, port, data,
76 cpu_get_mem_attrs(env), NULL);
80 target_ulong helper_inl(CPUX86State *env, uint32_t port)
82 #ifdef CONFIG_USER_ONLY
83 fprintf(stderr, "inl: port=0x%04x\n", port);
86 return address_space_ldl(&address_space_io, port,
87 cpu_get_mem_attrs(env), NULL);
91 void helper_into(CPUX86State *env, int next_eip_addend)
95 eflags = cpu_cc_compute_all(env, CC_OP);
97 raise_interrupt(env, EXCP04_INTO, 1, 0, next_eip_addend);
101 void helper_cpuid(CPUX86State *env)
103 uint32_t eax, ebx, ecx, edx;
105 cpu_svm_check_intercept_param(env, SVM_EXIT_CPUID, 0, GETPC());
107 cpu_x86_cpuid(env, (uint32_t)env->regs[R_EAX], (uint32_t)env->regs[R_ECX],
108 &eax, &ebx, &ecx, &edx);
109 env->regs[R_EAX] = eax;
110 env->regs[R_EBX] = ebx;
111 env->regs[R_ECX] = ecx;
112 env->regs[R_EDX] = edx;
115 #if defined(CONFIG_USER_ONLY)
116 target_ulong helper_read_crN(CPUX86State *env, int reg)
121 void helper_write_crN(CPUX86State *env, int reg, target_ulong t0)
125 target_ulong helper_read_crN(CPUX86State *env, int reg)
129 cpu_svm_check_intercept_param(env, SVM_EXIT_READ_CR0 + reg, 0, GETPC());
135 if (!(env->hflags2 & HF2_VINTR_MASK)) {
136 val = cpu_get_apic_tpr(x86_env_get_cpu(env)->apic_state);
145 void helper_write_crN(CPUX86State *env, int reg, target_ulong t0)
147 cpu_svm_check_intercept_param(env, SVM_EXIT_WRITE_CR0 + reg, 0, GETPC());
150 cpu_x86_update_cr0(env, t0);
153 cpu_x86_update_cr3(env, t0);
156 cpu_x86_update_cr4(env, t0);
159 if (!(env->hflags2 & HF2_VINTR_MASK)) {
160 qemu_mutex_lock_iothread();
161 cpu_set_apic_tpr(x86_env_get_cpu(env)->apic_state, t0);
162 qemu_mutex_unlock_iothread();
164 env->v_tpr = t0 & 0x0f;
173 void helper_lmsw(CPUX86State *env, target_ulong t0)
175 /* only 4 lower bits of CR0 are modified. PE cannot be set to zero
176 if already set to one. */
177 t0 = (env->cr[0] & ~0xe) | (t0 & 0xf);
178 helper_write_crN(env, 0, t0);
181 void helper_invlpg(CPUX86State *env, target_ulong addr)
183 X86CPU *cpu = x86_env_get_cpu(env);
185 cpu_svm_check_intercept_param(env, SVM_EXIT_INVLPG, 0, GETPC());
186 tlb_flush_page(CPU(cpu), addr);
189 void helper_rdtsc(CPUX86State *env)
193 if ((env->cr[4] & CR4_TSD_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
194 raise_exception_ra(env, EXCP0D_GPF, GETPC());
196 cpu_svm_check_intercept_param(env, SVM_EXIT_RDTSC, 0, GETPC());
198 val = cpu_get_tsc(env) + env->tsc_offset;
199 env->regs[R_EAX] = (uint32_t)(val);
200 env->regs[R_EDX] = (uint32_t)(val >> 32);
203 void helper_rdtscp(CPUX86State *env)
206 env->regs[R_ECX] = (uint32_t)(env->tsc_aux);
209 void helper_rdpmc(CPUX86State *env)
211 if ((env->cr[4] & CR4_PCE_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
212 raise_exception_ra(env, EXCP0D_GPF, GETPC());
214 cpu_svm_check_intercept_param(env, SVM_EXIT_RDPMC, 0, GETPC());
216 /* currently unimplemented */
217 qemu_log_mask(LOG_UNIMP, "x86: unimplemented rdpmc\n");
218 raise_exception_err(env, EXCP06_ILLOP, 0);
221 #if defined(CONFIG_USER_ONLY)
222 void helper_wrmsr(CPUX86State *env)
226 void helper_rdmsr(CPUX86State *env)
230 void helper_wrmsr(CPUX86State *env)
234 cpu_svm_check_intercept_param(env, SVM_EXIT_MSR, 1, GETPC());
236 val = ((uint32_t)env->regs[R_EAX]) |
237 ((uint64_t)((uint32_t)env->regs[R_EDX]) << 32);
239 switch ((uint32_t)env->regs[R_ECX]) {
240 case MSR_IA32_SYSENTER_CS:
241 env->sysenter_cs = val & 0xffff;
243 case MSR_IA32_SYSENTER_ESP:
244 env->sysenter_esp = val;
246 case MSR_IA32_SYSENTER_EIP:
247 env->sysenter_eip = val;
249 case MSR_IA32_APICBASE:
250 cpu_set_apic_base(x86_env_get_cpu(env)->apic_state, val);
254 uint64_t update_mask;
257 if (env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_SYSCALL) {
258 update_mask |= MSR_EFER_SCE;
260 if (env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM) {
261 update_mask |= MSR_EFER_LME;
263 if (env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_FFXSR) {
264 update_mask |= MSR_EFER_FFXSR;
266 if (env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_NX) {
267 update_mask |= MSR_EFER_NXE;
269 if (env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_SVM) {
270 update_mask |= MSR_EFER_SVME;
272 if (env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_FFXSR) {
273 update_mask |= MSR_EFER_FFXSR;
275 cpu_load_efer(env, (env->efer & ~update_mask) |
276 (val & update_mask));
285 case MSR_VM_HSAVE_PA:
299 env->segs[R_FS].base = val;
302 env->segs[R_GS].base = val;
304 case MSR_KERNELGSBASE:
305 env->kernelgsbase = val;
308 case MSR_MTRRphysBase(0):
309 case MSR_MTRRphysBase(1):
310 case MSR_MTRRphysBase(2):
311 case MSR_MTRRphysBase(3):
312 case MSR_MTRRphysBase(4):
313 case MSR_MTRRphysBase(5):
314 case MSR_MTRRphysBase(6):
315 case MSR_MTRRphysBase(7):
316 env->mtrr_var[((uint32_t)env->regs[R_ECX] -
317 MSR_MTRRphysBase(0)) / 2].base = val;
319 case MSR_MTRRphysMask(0):
320 case MSR_MTRRphysMask(1):
321 case MSR_MTRRphysMask(2):
322 case MSR_MTRRphysMask(3):
323 case MSR_MTRRphysMask(4):
324 case MSR_MTRRphysMask(5):
325 case MSR_MTRRphysMask(6):
326 case MSR_MTRRphysMask(7):
327 env->mtrr_var[((uint32_t)env->regs[R_ECX] -
328 MSR_MTRRphysMask(0)) / 2].mask = val;
330 case MSR_MTRRfix64K_00000:
331 env->mtrr_fixed[(uint32_t)env->regs[R_ECX] -
332 MSR_MTRRfix64K_00000] = val;
334 case MSR_MTRRfix16K_80000:
335 case MSR_MTRRfix16K_A0000:
336 env->mtrr_fixed[(uint32_t)env->regs[R_ECX] -
337 MSR_MTRRfix16K_80000 + 1] = val;
339 case MSR_MTRRfix4K_C0000:
340 case MSR_MTRRfix4K_C8000:
341 case MSR_MTRRfix4K_D0000:
342 case MSR_MTRRfix4K_D8000:
343 case MSR_MTRRfix4K_E0000:
344 case MSR_MTRRfix4K_E8000:
345 case MSR_MTRRfix4K_F0000:
346 case MSR_MTRRfix4K_F8000:
347 env->mtrr_fixed[(uint32_t)env->regs[R_ECX] -
348 MSR_MTRRfix4K_C0000 + 3] = val;
350 case MSR_MTRRdefType:
351 env->mtrr_deftype = val;
354 env->mcg_status = val;
357 if ((env->mcg_cap & MCG_CTL_P)
358 && (val == 0 || val == ~(uint64_t)0)) {
365 case MSR_IA32_MISC_ENABLE:
366 env->msr_ia32_misc_enable = val;
368 case MSR_IA32_BNDCFGS:
369 /* FIXME: #GP if reserved bits are set. */
370 /* FIXME: Extend highest implemented bit of linear address. */
371 env->msr_bndcfgs = val;
372 cpu_sync_bndcs_hflags(env);
375 if ((uint32_t)env->regs[R_ECX] >= MSR_MC0_CTL
376 && (uint32_t)env->regs[R_ECX] < MSR_MC0_CTL +
377 (4 * env->mcg_cap & 0xff)) {
378 uint32_t offset = (uint32_t)env->regs[R_ECX] - MSR_MC0_CTL;
379 if ((offset & 0x3) != 0
380 || (val == 0 || val == ~(uint64_t)0)) {
381 env->mce_banks[offset] = val;
385 /* XXX: exception? */
390 void helper_rdmsr(CPUX86State *env)
394 cpu_svm_check_intercept_param(env, SVM_EXIT_MSR, 0, GETPC());
396 switch ((uint32_t)env->regs[R_ECX]) {
397 case MSR_IA32_SYSENTER_CS:
398 val = env->sysenter_cs;
400 case MSR_IA32_SYSENTER_ESP:
401 val = env->sysenter_esp;
403 case MSR_IA32_SYSENTER_EIP:
404 val = env->sysenter_eip;
406 case MSR_IA32_APICBASE:
407 val = cpu_get_apic_base(x86_env_get_cpu(env)->apic_state);
418 case MSR_VM_HSAVE_PA:
421 case MSR_IA32_PERF_STATUS:
422 /* tsc_increment_by_tick */
425 val |= (((uint64_t)4ULL) << 40);
438 val = env->segs[R_FS].base;
441 val = env->segs[R_GS].base;
443 case MSR_KERNELGSBASE:
444 val = env->kernelgsbase;
450 case MSR_MTRRphysBase(0):
451 case MSR_MTRRphysBase(1):
452 case MSR_MTRRphysBase(2):
453 case MSR_MTRRphysBase(3):
454 case MSR_MTRRphysBase(4):
455 case MSR_MTRRphysBase(5):
456 case MSR_MTRRphysBase(6):
457 case MSR_MTRRphysBase(7):
458 val = env->mtrr_var[((uint32_t)env->regs[R_ECX] -
459 MSR_MTRRphysBase(0)) / 2].base;
461 case MSR_MTRRphysMask(0):
462 case MSR_MTRRphysMask(1):
463 case MSR_MTRRphysMask(2):
464 case MSR_MTRRphysMask(3):
465 case MSR_MTRRphysMask(4):
466 case MSR_MTRRphysMask(5):
467 case MSR_MTRRphysMask(6):
468 case MSR_MTRRphysMask(7):
469 val = env->mtrr_var[((uint32_t)env->regs[R_ECX] -
470 MSR_MTRRphysMask(0)) / 2].mask;
472 case MSR_MTRRfix64K_00000:
473 val = env->mtrr_fixed[0];
475 case MSR_MTRRfix16K_80000:
476 case MSR_MTRRfix16K_A0000:
477 val = env->mtrr_fixed[(uint32_t)env->regs[R_ECX] -
478 MSR_MTRRfix16K_80000 + 1];
480 case MSR_MTRRfix4K_C0000:
481 case MSR_MTRRfix4K_C8000:
482 case MSR_MTRRfix4K_D0000:
483 case MSR_MTRRfix4K_D8000:
484 case MSR_MTRRfix4K_E0000:
485 case MSR_MTRRfix4K_E8000:
486 case MSR_MTRRfix4K_F0000:
487 case MSR_MTRRfix4K_F8000:
488 val = env->mtrr_fixed[(uint32_t)env->regs[R_ECX] -
489 MSR_MTRRfix4K_C0000 + 3];
491 case MSR_MTRRdefType:
492 val = env->mtrr_deftype;
495 if (env->features[FEAT_1_EDX] & CPUID_MTRR) {
496 val = MSR_MTRRcap_VCNT | MSR_MTRRcap_FIXRANGE_SUPPORT |
497 MSR_MTRRcap_WC_SUPPORTED;
499 /* XXX: exception? */
507 if (env->mcg_cap & MCG_CTL_P) {
514 val = env->mcg_status;
516 case MSR_IA32_MISC_ENABLE:
517 val = env->msr_ia32_misc_enable;
519 case MSR_IA32_BNDCFGS:
520 val = env->msr_bndcfgs;
523 if ((uint32_t)env->regs[R_ECX] >= MSR_MC0_CTL
524 && (uint32_t)env->regs[R_ECX] < MSR_MC0_CTL +
525 (4 * env->mcg_cap & 0xff)) {
526 uint32_t offset = (uint32_t)env->regs[R_ECX] - MSR_MC0_CTL;
527 val = env->mce_banks[offset];
530 /* XXX: exception? */
534 env->regs[R_EAX] = (uint32_t)(val);
535 env->regs[R_EDX] = (uint32_t)(val >> 32);
539 static void do_pause(X86CPU *cpu)
541 CPUState *cs = CPU(cpu);
543 /* Just let another CPU run. */
544 cs->exception_index = EXCP_INTERRUPT;
548 static void do_hlt(X86CPU *cpu)
550 CPUState *cs = CPU(cpu);
551 CPUX86State *env = &cpu->env;
553 env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */
555 cs->exception_index = EXCP_HLT;
559 void helper_hlt(CPUX86State *env, int next_eip_addend)
561 X86CPU *cpu = x86_env_get_cpu(env);
563 cpu_svm_check_intercept_param(env, SVM_EXIT_HLT, 0, GETPC());
564 env->eip += next_eip_addend;
569 void helper_monitor(CPUX86State *env, target_ulong ptr)
571 if ((uint32_t)env->regs[R_ECX] != 0) {
572 raise_exception_ra(env, EXCP0D_GPF, GETPC());
574 /* XXX: store address? */
575 cpu_svm_check_intercept_param(env, SVM_EXIT_MONITOR, 0, GETPC());
578 void helper_mwait(CPUX86State *env, int next_eip_addend)
583 if ((uint32_t)env->regs[R_ECX] != 0) {
584 raise_exception_ra(env, EXCP0D_GPF, GETPC());
586 cpu_svm_check_intercept_param(env, SVM_EXIT_MWAIT, 0, GETPC());
587 env->eip += next_eip_addend;
589 cpu = x86_env_get_cpu(env);
591 /* XXX: not complete but not completely erroneous */
592 if (cs->cpu_index != 0 || CPU_NEXT(cs) != NULL) {
599 void helper_pause(CPUX86State *env, int next_eip_addend)
601 X86CPU *cpu = x86_env_get_cpu(env);
603 cpu_svm_check_intercept_param(env, SVM_EXIT_PAUSE, 0, GETPC());
604 env->eip += next_eip_addend;
609 void helper_debug(CPUX86State *env)
611 CPUState *cs = CPU(x86_env_get_cpu(env));
613 cs->exception_index = EXCP_DEBUG;
617 uint64_t helper_rdpkru(CPUX86State *env, uint32_t ecx)
619 if ((env->cr[4] & CR4_PKE_MASK) == 0) {
620 raise_exception_err_ra(env, EXCP06_ILLOP, 0, GETPC());
623 raise_exception_err_ra(env, EXCP0D_GPF, 0, GETPC());
629 void helper_wrpkru(CPUX86State *env, uint32_t ecx, uint64_t val)
631 CPUState *cs = CPU(x86_env_get_cpu(env));
633 if ((env->cr[4] & CR4_PKE_MASK) == 0) {
634 raise_exception_err_ra(env, EXCP06_ILLOP, 0, GETPC());
636 if (ecx != 0 || (val & 0xFFFFFFFF00000000ull)) {
637 raise_exception_err_ra(env, EXCP0D_GPF, 0, GETPC());