4 * Copyright IBM, Corp. 2008
11 * Copyright (c) 2011 Intel Corporation
17 * This work is licensed under the terms of the GNU GPL, version 2 or later.
18 * See the COPYING file in the top-level directory.
23 * HAX common code for both windows and darwin
26 #include "qemu/osdep.h"
28 #include "exec/address-spaces.h"
29 #include "exec/exec-all.h"
31 #include "qemu-common.h"
33 #include "sysemu/accel.h"
34 #include "sysemu/sysemu.h"
35 #include "qemu/main-loop.h"
36 #include "hw/boards.h"
40 #define DPRINTF(fmt, ...) \
43 fprintf(stdout, fmt, ## __VA_ARGS__); \
48 const uint32_t hax_cur_version = 0x4; /* API v4: unmapping and MMIO moves */
49 /* Minimum HAX kernel version */
50 const uint32_t hax_min_version = 0x4; /* API v4: supports unmapping */
52 static bool hax_allowed;
54 struct hax_state hax_global;
56 static void hax_vcpu_sync_state(CPUArchState *env, int modified);
57 static int hax_arch_get_registers(CPUArchState *env);
64 int valid_hax_tunnel_size(uint16_t size)
66 return size >= sizeof(struct hax_tunnel);
69 hax_fd hax_vcpu_get_fd(CPUArchState *env)
71 struct hax_vcpu_state *vcpu = ENV_GET_CPU(env)->hax_vcpu;
73 return HAX_INVALID_FD;
78 static int hax_get_capability(struct hax_state *hax)
81 struct hax_capabilityinfo capinfo, *cap = &capinfo;
83 ret = hax_capability(hax, cap);
88 if ((cap->wstatus & HAX_CAP_WORKSTATUS_MASK) == HAX_CAP_STATUS_NOTWORKING) {
89 if (cap->winfo & HAX_CAP_FAILREASON_VT) {
91 ("VTX feature is not enabled, HAX driver will not work.\n");
92 } else if (cap->winfo & HAX_CAP_FAILREASON_NX) {
94 ("NX feature is not enabled, HAX driver will not work.\n");
100 if (!(cap->winfo & HAX_CAP_UG)) {
101 fprintf(stderr, "UG mode is not supported by the hardware.\n");
105 hax->supports_64bit_ramblock = !!(cap->winfo & HAX_CAP_64BIT_RAMBLOCK);
107 if (cap->wstatus & HAX_CAP_MEMQUOTA) {
108 if (cap->mem_quota < hax->mem_quota) {
109 fprintf(stderr, "The VM memory needed exceeds the driver limit.\n");
116 static int hax_version_support(struct hax_state *hax)
119 struct hax_module_version version;
121 ret = hax_mod_version(hax, &version);
126 if (hax_min_version > version.cur_version) {
127 fprintf(stderr, "Incompatible HAX module version %d,",
128 version.cur_version);
129 fprintf(stderr, "requires minimum version %d\n", hax_min_version);
132 if (hax_cur_version < version.compat_version) {
133 fprintf(stderr, "Incompatible QEMU HAX API version %x,",
135 fprintf(stderr, "requires minimum HAX API version %x\n",
136 version.compat_version);
143 int hax_vcpu_create(int id)
145 struct hax_vcpu_state *vcpu = NULL;
148 if (!hax_global.vm) {
149 fprintf(stderr, "vcpu %x created failed, vm is null\n", id);
153 if (hax_global.vm->vcpus[id]) {
154 fprintf(stderr, "vcpu %x allocated already\n", id);
158 vcpu = g_malloc(sizeof(struct hax_vcpu_state));
160 fprintf(stderr, "Failed to alloc vcpu state\n");
164 memset(vcpu, 0, sizeof(struct hax_vcpu_state));
166 ret = hax_host_create_vcpu(hax_global.vm->fd, id);
168 fprintf(stderr, "Failed to create vcpu %x\n", id);
173 vcpu->fd = hax_host_open_vcpu(hax_global.vm->id, id);
174 if (hax_invalid_fd(vcpu->fd)) {
175 fprintf(stderr, "Failed to open the vcpu\n");
180 hax_global.vm->vcpus[id] = vcpu;
182 ret = hax_host_setup_vcpu_channel(vcpu);
184 fprintf(stderr, "Invalid hax tunnel size\n");
191 /* vcpu and tunnel will be closed automatically */
192 if (vcpu && !hax_invalid_fd(vcpu->fd)) {
193 hax_close_fd(vcpu->fd);
196 hax_global.vm->vcpus[id] = NULL;
201 int hax_vcpu_destroy(CPUState *cpu)
203 struct hax_vcpu_state *vcpu = cpu->hax_vcpu;
205 if (!hax_global.vm) {
206 fprintf(stderr, "vcpu %x destroy failed, vm is null\n", vcpu->vcpu_id);
215 * 1. The hax_tunnel is also destroied when vcpu destroy
216 * 2. close fd will cause hax module vcpu be cleaned
218 hax_close_fd(vcpu->fd);
219 hax_global.vm->vcpus[vcpu->vcpu_id] = NULL;
224 int hax_init_vcpu(CPUState *cpu)
228 ret = hax_vcpu_create(cpu->cpu_index);
230 fprintf(stderr, "Failed to create HAX vcpu\n");
234 cpu->hax_vcpu = hax_global.vm->vcpus[cpu->cpu_index];
235 cpu->vcpu_dirty = true;
236 qemu_register_reset(hax_reset_vcpu_state, (CPUArchState *) (cpu->env_ptr));
241 struct hax_vm *hax_vm_create(struct hax_state *hax)
246 if (hax_invalid_fd(hax->fd)) {
254 vm = g_malloc(sizeof(struct hax_vm));
258 memset(vm, 0, sizeof(struct hax_vm));
259 ret = hax_host_create_vm(hax, &vm_id);
261 fprintf(stderr, "Failed to create vm %x\n", ret);
265 vm->fd = hax_host_open_vm(hax, vm_id);
266 if (hax_invalid_fd(vm->fd)) {
267 fprintf(stderr, "Failed to open vm %d\n", vm_id);
280 int hax_vm_destroy(struct hax_vm *vm)
284 for (i = 0; i < HAX_MAX_VCPU; i++)
286 fprintf(stderr, "VCPU should be cleaned before vm clean\n");
289 hax_close_fd(vm->fd);
291 hax_global.vm = NULL;
295 static void hax_handle_interrupt(CPUState *cpu, int mask)
297 cpu->interrupt_request |= mask;
299 if (!qemu_cpu_is_self(cpu)) {
304 static int hax_init(ram_addr_t ram_size)
306 struct hax_state *hax = NULL;
307 struct hax_qemu_version qversion;
312 memset(hax, 0, sizeof(struct hax_state));
313 hax->mem_quota = ram_size;
315 hax->fd = hax_mod_open();
316 if (hax_invalid_fd(hax->fd)) {
322 ret = hax_get_capability(hax);
325 if (ret != -ENOSPC) {
331 if (!hax_version_support(hax)) {
336 hax->vm = hax_vm_create(hax);
338 fprintf(stderr, "Failed to create HAX VM\n");
345 qversion.cur_version = hax_cur_version;
346 qversion.min_version = hax_min_version;
347 hax_notify_qemu_version(hax->vm->fd, &qversion);
348 cpu_interrupt_handler = hax_handle_interrupt;
353 hax_vm_destroy(hax->vm);
362 static int hax_accel_init(MachineState *ms)
364 int ret = hax_init(ms->ram_size);
366 if (ret && (ret != -ENOSPC)) {
367 fprintf(stderr, "No accelerator found.\n");
369 fprintf(stdout, "HAX is %s and emulator runs in %s mode.\n",
370 !ret ? "working" : "not working",
371 !ret ? "fast virt" : "emulation");
376 static int hax_handle_fastmmio(CPUArchState *env, struct hax_fastmmio *hft)
378 if (hft->direction < 2) {
379 cpu_physical_memory_rw(hft->gpa, (uint8_t *) &hft->value, hft->size,
383 * HAX API v4 supports transferring data between two MMIO addresses,
384 * hft->gpa and hft->gpa2 (instructions such as MOVS require this):
385 * hft->direction == 2: gpa ==> gpa2
388 cpu_physical_memory_rw(hft->gpa, (uint8_t *) &value, hft->size, 0);
389 cpu_physical_memory_rw(hft->gpa2, (uint8_t *) &value, hft->size, 1);
395 static int hax_handle_io(CPUArchState *env, uint32_t df, uint16_t port,
396 int direction, int size, int count, void *buffer)
400 MemTxAttrs attrs = { 0 };
403 ptr = (uint8_t *) buffer;
405 ptr = buffer + size * count - size;
407 for (i = 0; i < count; i++) {
408 address_space_rw(&address_space_io, port, attrs,
409 ptr, size, direction == HAX_EXIT_IO_OUT);
420 static int hax_vcpu_interrupt(CPUArchState *env)
422 CPUState *cpu = ENV_GET_CPU(env);
423 struct hax_vcpu_state *vcpu = cpu->hax_vcpu;
424 struct hax_tunnel *ht = vcpu->tunnel;
427 * Try to inject an interrupt if the guest can accept it
428 * Unlike KVM, HAX kernel check for the eflags, instead of qemu
430 if (ht->ready_for_interrupt_injection &&
431 (cpu->interrupt_request & CPU_INTERRUPT_HARD)) {
434 irq = cpu_get_pic_interrupt(env);
436 hax_inject_interrupt(env, irq);
437 cpu->interrupt_request &= ~CPU_INTERRUPT_HARD;
441 /* If we have an interrupt but the guest is not ready to receive an
442 * interrupt, request an interrupt window exit. This will
443 * cause a return to userspace as soon as the guest is ready to
444 * receive interrupts. */
445 if ((cpu->interrupt_request & CPU_INTERRUPT_HARD)) {
446 ht->request_interrupt_window = 1;
448 ht->request_interrupt_window = 0;
453 void hax_raise_event(CPUState *cpu)
455 struct hax_vcpu_state *vcpu = cpu->hax_vcpu;
460 vcpu->tunnel->user_event_pending = 1;
464 * Ask hax kernel module to run the CPU for us till:
465 * 1. Guest crash or shutdown
466 * 2. Need QEMU's emulation like guest execute MMIO instruction
467 * 3. Guest execute HLT
468 * 4. QEMU have Signal/event pending
469 * 5. An unknown VMX exit happens
471 static int hax_vcpu_hax_exec(CPUArchState *env)
474 CPUState *cpu = ENV_GET_CPU(env);
475 X86CPU *x86_cpu = X86_CPU(cpu);
476 struct hax_vcpu_state *vcpu = cpu->hax_vcpu;
477 struct hax_tunnel *ht = vcpu->tunnel;
479 if (!hax_enabled()) {
480 DPRINTF("Trying to vcpu execute at eip:" TARGET_FMT_lx "\n", env->eip);
486 if (cpu->interrupt_request & CPU_INTERRUPT_POLL) {
487 cpu->interrupt_request &= ~CPU_INTERRUPT_POLL;
488 apic_poll_irq(x86_cpu->apic_state);
491 if (cpu->interrupt_request & CPU_INTERRUPT_INIT) {
492 DPRINTF("\nhax_vcpu_hax_exec: handling INIT for %d\n",
494 do_cpu_init(x86_cpu);
495 hax_vcpu_sync_state(env, 1);
498 if (cpu->interrupt_request & CPU_INTERRUPT_SIPI) {
499 DPRINTF("hax_vcpu_hax_exec: handling SIPI for %d\n",
501 hax_vcpu_sync_state(env, 0);
502 do_cpu_sipi(x86_cpu);
503 hax_vcpu_sync_state(env, 1);
509 if (cpu->exit_request) {
514 hax_vcpu_interrupt(env);
516 qemu_mutex_unlock_iothread();
518 hax_ret = hax_vcpu_run(vcpu);
520 qemu_mutex_lock_iothread();
522 /* Simply continue the vcpu_run if system call interrupted */
523 if (hax_ret == -EINTR || hax_ret == -EAGAIN) {
524 DPRINTF("io window interrupted\n");
529 fprintf(stderr, "vcpu run failed for vcpu %x\n", vcpu->vcpu_id);
532 switch (ht->_exit_status) {
534 ret = hax_handle_io(env, ht->pio._df, ht->pio._port,
536 ht->pio._size, ht->pio._count, vcpu->iobuf);
538 case HAX_EXIT_FAST_MMIO:
539 ret = hax_handle_fastmmio(env, (struct hax_fastmmio *) vcpu->iobuf);
541 /* Guest state changed, currently only for shutdown */
542 case HAX_EXIT_STATECHANGE:
543 fprintf(stdout, "VCPU shutdown request\n");
544 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
545 hax_vcpu_sync_state(env, 0);
548 case HAX_EXIT_UNKNOWN_VMEXIT:
549 fprintf(stderr, "Unknown VMX exit %x from guest\n",
551 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
552 hax_vcpu_sync_state(env, 0);
553 cpu_dump_state(cpu, stderr, fprintf, 0);
557 if (!(cpu->interrupt_request & CPU_INTERRUPT_HARD) &&
558 !(cpu->interrupt_request & CPU_INTERRUPT_NMI)) {
559 /* hlt instruction with interrupt disabled is shutdown */
560 env->eflags |= IF_MASK;
562 cpu->exception_index = EXCP_HLT;
566 /* these situations will continue to hax module */
567 case HAX_EXIT_INTERRUPT:
568 case HAX_EXIT_PAUSED:
571 /* Should not happen on UG system */
572 fprintf(stderr, "HAX: unsupported MMIO emulation\n");
576 /* Should not happen on UG system */
577 fprintf(stderr, "HAX: unimplemented real mode emulation\n");
581 fprintf(stderr, "Unknown exit %x from HAX\n", ht->_exit_status);
582 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
583 hax_vcpu_sync_state(env, 0);
584 cpu_dump_state(cpu, stderr, fprintf, 0);
590 if (cpu->exit_request) {
591 cpu->exit_request = 0;
592 cpu->exception_index = EXCP_INTERRUPT;
597 static void do_hax_cpu_synchronize_state(CPUState *cpu, run_on_cpu_data arg)
599 CPUArchState *env = cpu->env_ptr;
601 hax_arch_get_registers(env);
602 cpu->vcpu_dirty = true;
605 void hax_cpu_synchronize_state(CPUState *cpu)
607 if (!cpu->vcpu_dirty) {
608 run_on_cpu(cpu, do_hax_cpu_synchronize_state, RUN_ON_CPU_NULL);
612 static void do_hax_cpu_synchronize_post_reset(CPUState *cpu,
615 CPUArchState *env = cpu->env_ptr;
617 hax_vcpu_sync_state(env, 1);
618 cpu->vcpu_dirty = false;
621 void hax_cpu_synchronize_post_reset(CPUState *cpu)
623 run_on_cpu(cpu, do_hax_cpu_synchronize_post_reset, RUN_ON_CPU_NULL);
626 static void do_hax_cpu_synchronize_post_init(CPUState *cpu, run_on_cpu_data arg)
628 CPUArchState *env = cpu->env_ptr;
630 hax_vcpu_sync_state(env, 1);
631 cpu->vcpu_dirty = false;
634 void hax_cpu_synchronize_post_init(CPUState *cpu)
636 run_on_cpu(cpu, do_hax_cpu_synchronize_post_init, RUN_ON_CPU_NULL);
639 static void do_hax_cpu_synchronize_pre_loadvm(CPUState *cpu, run_on_cpu_data arg)
641 cpu->vcpu_dirty = true;
644 void hax_cpu_synchronize_pre_loadvm(CPUState *cpu)
646 run_on_cpu(cpu, do_hax_cpu_synchronize_pre_loadvm, RUN_ON_CPU_NULL);
649 int hax_smp_cpu_exec(CPUState *cpu)
651 CPUArchState *env = (CPUArchState *) (cpu->env_ptr);
656 if (cpu->exception_index >= EXCP_INTERRUPT) {
657 ret = cpu->exception_index;
658 cpu->exception_index = -1;
662 fatal = hax_vcpu_hax_exec(env);
665 fprintf(stderr, "Unsupported HAX vcpu return\n");
673 static void set_v8086_seg(struct segment_desc_t *lhs, const SegmentCache *rhs)
675 memset(lhs, 0, sizeof(struct segment_desc_t));
676 lhs->selector = rhs->selector;
677 lhs->base = rhs->base;
678 lhs->limit = rhs->limit;
682 lhs->operand_size = 0;
685 lhs->granularity = 0;
689 static void get_seg(SegmentCache *lhs, const struct segment_desc_t *rhs)
691 lhs->selector = rhs->selector;
692 lhs->base = rhs->base;
693 lhs->limit = rhs->limit;
694 lhs->flags = (rhs->type << DESC_TYPE_SHIFT)
695 | (rhs->present * DESC_P_MASK)
696 | (rhs->dpl << DESC_DPL_SHIFT)
697 | (rhs->operand_size << DESC_B_SHIFT)
698 | (rhs->desc * DESC_S_MASK)
699 | (rhs->long_mode << DESC_L_SHIFT)
700 | (rhs->granularity * DESC_G_MASK) | (rhs->available * DESC_AVL_MASK);
703 static void set_seg(struct segment_desc_t *lhs, const SegmentCache *rhs)
705 unsigned flags = rhs->flags;
707 memset(lhs, 0, sizeof(struct segment_desc_t));
708 lhs->selector = rhs->selector;
709 lhs->base = rhs->base;
710 lhs->limit = rhs->limit;
711 lhs->type = (flags >> DESC_TYPE_SHIFT) & 15;
712 lhs->present = (flags & DESC_P_MASK) != 0;
713 lhs->dpl = rhs->selector & 3;
714 lhs->operand_size = (flags >> DESC_B_SHIFT) & 1;
715 lhs->desc = (flags & DESC_S_MASK) != 0;
716 lhs->long_mode = (flags >> DESC_L_SHIFT) & 1;
717 lhs->granularity = (flags & DESC_G_MASK) != 0;
718 lhs->available = (flags & DESC_AVL_MASK) != 0;
721 static void hax_getput_reg(uint64_t *hax_reg, target_ulong *qemu_reg, int set)
723 target_ulong reg = *hax_reg;
726 *hax_reg = *qemu_reg;
732 /* The sregs has been synced with HAX kernel already before this call */
733 static int hax_get_segments(CPUArchState *env, struct vcpu_state_t *sregs)
735 get_seg(&env->segs[R_CS], &sregs->_cs);
736 get_seg(&env->segs[R_DS], &sregs->_ds);
737 get_seg(&env->segs[R_ES], &sregs->_es);
738 get_seg(&env->segs[R_FS], &sregs->_fs);
739 get_seg(&env->segs[R_GS], &sregs->_gs);
740 get_seg(&env->segs[R_SS], &sregs->_ss);
742 get_seg(&env->tr, &sregs->_tr);
743 get_seg(&env->ldt, &sregs->_ldt);
744 env->idt.limit = sregs->_idt.limit;
745 env->idt.base = sregs->_idt.base;
746 env->gdt.limit = sregs->_gdt.limit;
747 env->gdt.base = sregs->_gdt.base;
751 static int hax_set_segments(CPUArchState *env, struct vcpu_state_t *sregs)
753 if ((env->eflags & VM_MASK)) {
754 set_v8086_seg(&sregs->_cs, &env->segs[R_CS]);
755 set_v8086_seg(&sregs->_ds, &env->segs[R_DS]);
756 set_v8086_seg(&sregs->_es, &env->segs[R_ES]);
757 set_v8086_seg(&sregs->_fs, &env->segs[R_FS]);
758 set_v8086_seg(&sregs->_gs, &env->segs[R_GS]);
759 set_v8086_seg(&sregs->_ss, &env->segs[R_SS]);
761 set_seg(&sregs->_cs, &env->segs[R_CS]);
762 set_seg(&sregs->_ds, &env->segs[R_DS]);
763 set_seg(&sregs->_es, &env->segs[R_ES]);
764 set_seg(&sregs->_fs, &env->segs[R_FS]);
765 set_seg(&sregs->_gs, &env->segs[R_GS]);
766 set_seg(&sregs->_ss, &env->segs[R_SS]);
768 if (env->cr[0] & CR0_PE_MASK) {
769 /* force ss cpl to cs cpl */
770 sregs->_ss.selector = (sregs->_ss.selector & ~3) |
771 (sregs->_cs.selector & 3);
772 sregs->_ss.dpl = sregs->_ss.selector & 3;
776 set_seg(&sregs->_tr, &env->tr);
777 set_seg(&sregs->_ldt, &env->ldt);
778 sregs->_idt.limit = env->idt.limit;
779 sregs->_idt.base = env->idt.base;
780 sregs->_gdt.limit = env->gdt.limit;
781 sregs->_gdt.base = env->gdt.base;
785 static int hax_sync_vcpu_register(CPUArchState *env, int set)
787 struct vcpu_state_t regs;
789 memset(®s, 0, sizeof(struct vcpu_state_t));
792 ret = hax_sync_vcpu_state(env, ®s, 0);
798 /* generic register */
799 hax_getput_reg(®s._rax, &env->regs[R_EAX], set);
800 hax_getput_reg(®s._rbx, &env->regs[R_EBX], set);
801 hax_getput_reg(®s._rcx, &env->regs[R_ECX], set);
802 hax_getput_reg(®s._rdx, &env->regs[R_EDX], set);
803 hax_getput_reg(®s._rsi, &env->regs[R_ESI], set);
804 hax_getput_reg(®s._rdi, &env->regs[R_EDI], set);
805 hax_getput_reg(®s._rsp, &env->regs[R_ESP], set);
806 hax_getput_reg(®s._rbp, &env->regs[R_EBP], set);
808 hax_getput_reg(®s._r8, &env->regs[8], set);
809 hax_getput_reg(®s._r9, &env->regs[9], set);
810 hax_getput_reg(®s._r10, &env->regs[10], set);
811 hax_getput_reg(®s._r11, &env->regs[11], set);
812 hax_getput_reg(®s._r12, &env->regs[12], set);
813 hax_getput_reg(®s._r13, &env->regs[13], set);
814 hax_getput_reg(®s._r14, &env->regs[14], set);
815 hax_getput_reg(®s._r15, &env->regs[15], set);
817 hax_getput_reg(®s._rflags, &env->eflags, set);
818 hax_getput_reg(®s._rip, &env->eip, set);
821 regs._cr0 = env->cr[0];
822 regs._cr2 = env->cr[2];
823 regs._cr3 = env->cr[3];
824 regs._cr4 = env->cr[4];
825 hax_set_segments(env, ®s);
827 env->cr[0] = regs._cr0;
828 env->cr[2] = regs._cr2;
829 env->cr[3] = regs._cr3;
830 env->cr[4] = regs._cr4;
831 hax_get_segments(env, ®s);
835 ret = hax_sync_vcpu_state(env, ®s, 1);
843 static void hax_msr_entry_set(struct vmx_msr *item, uint32_t index,
850 static int hax_get_msrs(CPUArchState *env)
852 struct hax_msr_data md;
853 struct vmx_msr *msrs = md.entries;
857 msrs[n++].entry = MSR_IA32_SYSENTER_CS;
858 msrs[n++].entry = MSR_IA32_SYSENTER_ESP;
859 msrs[n++].entry = MSR_IA32_SYSENTER_EIP;
860 msrs[n++].entry = MSR_IA32_TSC;
862 msrs[n++].entry = MSR_EFER;
863 msrs[n++].entry = MSR_STAR;
864 msrs[n++].entry = MSR_LSTAR;
865 msrs[n++].entry = MSR_CSTAR;
866 msrs[n++].entry = MSR_FMASK;
867 msrs[n++].entry = MSR_KERNELGSBASE;
870 ret = hax_sync_msr(env, &md, 0);
875 for (i = 0; i < md.done; i++) {
876 switch (msrs[i].entry) {
877 case MSR_IA32_SYSENTER_CS:
878 env->sysenter_cs = msrs[i].value;
880 case MSR_IA32_SYSENTER_ESP:
881 env->sysenter_esp = msrs[i].value;
883 case MSR_IA32_SYSENTER_EIP:
884 env->sysenter_eip = msrs[i].value;
887 env->tsc = msrs[i].value;
891 env->efer = msrs[i].value;
894 env->star = msrs[i].value;
897 env->lstar = msrs[i].value;
900 env->cstar = msrs[i].value;
903 env->fmask = msrs[i].value;
905 case MSR_KERNELGSBASE:
906 env->kernelgsbase = msrs[i].value;
915 static int hax_set_msrs(CPUArchState *env)
917 struct hax_msr_data md;
918 struct vmx_msr *msrs;
922 memset(&md, 0, sizeof(struct hax_msr_data));
923 hax_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_CS, env->sysenter_cs);
924 hax_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_ESP, env->sysenter_esp);
925 hax_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_EIP, env->sysenter_eip);
926 hax_msr_entry_set(&msrs[n++], MSR_IA32_TSC, env->tsc);
928 hax_msr_entry_set(&msrs[n++], MSR_EFER, env->efer);
929 hax_msr_entry_set(&msrs[n++], MSR_STAR, env->star);
930 hax_msr_entry_set(&msrs[n++], MSR_LSTAR, env->lstar);
931 hax_msr_entry_set(&msrs[n++], MSR_CSTAR, env->cstar);
932 hax_msr_entry_set(&msrs[n++], MSR_FMASK, env->fmask);
933 hax_msr_entry_set(&msrs[n++], MSR_KERNELGSBASE, env->kernelgsbase);
938 return hax_sync_msr(env, &md, 1);
941 static int hax_get_fpu(CPUArchState *env)
943 struct fx_layout fpu;
946 ret = hax_sync_fpu(env, &fpu, 0);
951 env->fpstt = (fpu.fsw >> 11) & 7;
954 for (i = 0; i < 8; ++i) {
955 env->fptags[i] = !((fpu.ftw >> i) & 1);
957 memcpy(env->fpregs, fpu.st_mm, sizeof(env->fpregs));
959 for (i = 0; i < 8; i++) {
960 env->xmm_regs[i].ZMM_Q(0) = ldq_p(&fpu.mmx_1[i][0]);
961 env->xmm_regs[i].ZMM_Q(1) = ldq_p(&fpu.mmx_1[i][8]);
962 if (CPU_NB_REGS > 8) {
963 env->xmm_regs[i + 8].ZMM_Q(0) = ldq_p(&fpu.mmx_2[i][0]);
964 env->xmm_regs[i + 8].ZMM_Q(1) = ldq_p(&fpu.mmx_2[i][8]);
967 env->mxcsr = fpu.mxcsr;
972 static int hax_set_fpu(CPUArchState *env)
974 struct fx_layout fpu;
977 memset(&fpu, 0, sizeof(fpu));
978 fpu.fsw = env->fpus & ~(7 << 11);
979 fpu.fsw |= (env->fpstt & 7) << 11;
982 for (i = 0; i < 8; ++i) {
983 fpu.ftw |= (!env->fptags[i]) << i;
986 memcpy(fpu.st_mm, env->fpregs, sizeof(env->fpregs));
987 for (i = 0; i < 8; i++) {
988 stq_p(&fpu.mmx_1[i][0], env->xmm_regs[i].ZMM_Q(0));
989 stq_p(&fpu.mmx_1[i][8], env->xmm_regs[i].ZMM_Q(1));
990 if (CPU_NB_REGS > 8) {
991 stq_p(&fpu.mmx_2[i][0], env->xmm_regs[i + 8].ZMM_Q(0));
992 stq_p(&fpu.mmx_2[i][8], env->xmm_regs[i + 8].ZMM_Q(1));
996 fpu.mxcsr = env->mxcsr;
998 return hax_sync_fpu(env, &fpu, 1);
1001 static int hax_arch_get_registers(CPUArchState *env)
1005 ret = hax_sync_vcpu_register(env, 0);
1010 ret = hax_get_fpu(env);
1015 ret = hax_get_msrs(env);
1020 x86_update_hflags(env);
1024 static int hax_arch_set_registers(CPUArchState *env)
1027 ret = hax_sync_vcpu_register(env, 1);
1030 fprintf(stderr, "Failed to sync vcpu reg\n");
1033 ret = hax_set_fpu(env);
1035 fprintf(stderr, "FPU failed\n");
1038 ret = hax_set_msrs(env);
1040 fprintf(stderr, "MSR failed\n");
1047 static void hax_vcpu_sync_state(CPUArchState *env, int modified)
1049 if (hax_enabled()) {
1051 hax_arch_set_registers(env);
1053 hax_arch_get_registers(env);
1059 * much simpler than kvm, at least in first stage because:
1060 * We don't need consider the device pass-through, we don't need
1061 * consider the framebuffer, and we may even remove the bios at all
1063 int hax_sync_vcpus(void)
1065 if (hax_enabled()) {
1073 for (; cpu != NULL; cpu = CPU_NEXT(cpu)) {
1076 ret = hax_arch_set_registers(cpu->env_ptr);
1086 void hax_reset_vcpu_state(void *opaque)
1089 for (cpu = first_cpu; cpu != NULL; cpu = CPU_NEXT(cpu)) {
1090 cpu->hax_vcpu->tunnel->user_event_pending = 0;
1091 cpu->hax_vcpu->tunnel->ready_for_interrupt_injection = 0;
1095 static void hax_accel_class_init(ObjectClass *oc, void *data)
1097 AccelClass *ac = ACCEL_CLASS(oc);
1099 ac->init_machine = hax_accel_init;
1100 ac->allowed = &hax_allowed;
1103 static const TypeInfo hax_accel_type = {
1104 .name = ACCEL_CLASS_NAME("hax"),
1105 .parent = TYPE_ACCEL,
1106 .class_init = hax_accel_class_init,
1109 static void hax_type_init(void)
1111 type_register_static(&hax_accel_type);
1114 type_init(hax_type_init);