{
cr0 |= X86_CR0_ET;
- if (cr0 & CR0_RESERVED_BITS) {
+#ifdef CONFIG_X86_64
+ if (cr0 & 0xffffffff00000000UL) {
printk(KERN_DEBUG "set_cr0: 0x%lx #GP, reserved bits 0x%lx\n",
cr0, kvm_read_cr0(vcpu));
kvm_inject_gp(vcpu, 0);
return;
}
+#endif
+
+ cr0 &= ~CR0_RESERVED_BITS;
if ((cr0 & X86_CR0_NW) && !(cr0 & X86_CR0_CD)) {
printk(KERN_DEBUG "set_cr0: #GP, CD == 0 && NW == 1\n");
if (!is_paging(vcpu) && (cr0 & X86_CR0_PG)) {
#ifdef CONFIG_X86_64
- if ((vcpu->arch.shadow_efer & EFER_LME)) {
+ if ((vcpu->arch.efer & EFER_LME)) {
int cs_db, cs_l;
if (!is_pae(vcpu)) {
}
if (is_paging(vcpu)
- && (vcpu->arch.shadow_efer & EFER_LME) != (efer & EFER_LME)) {
+ && (vcpu->arch.efer & EFER_LME) != (efer & EFER_LME)) {
printk(KERN_DEBUG "set_efer: #GP, change LME while paging\n");
kvm_inject_gp(vcpu, 0);
return;
kvm_x86_ops->set_efer(vcpu, efer);
efer &= ~EFER_LMA;
- efer |= vcpu->arch.shadow_efer & EFER_LMA;
+ efer |= vcpu->arch.efer & EFER_LMA;
- vcpu->arch.shadow_efer = efer;
+ vcpu->arch.efer = efer;
vcpu->arch.mmu.base_role.nxe = (efer & EFER_NX) && !tdp_enabled;
kvm_mmu_reset_context(vcpu);
data |= (((uint64_t)4ULL) << 40);
break;
case MSR_EFER:
- data = vcpu->arch.shadow_efer;
+ data = vcpu->arch.efer;
break;
case MSR_KVM_WALL_CLOCK:
data = vcpu->kvm->arch.wall_clock;
case KVM_CAP_HYPERV:
case KVM_CAP_HYPERV_VAPIC:
case KVM_CAP_HYPERV_SPIN:
+ case KVM_CAP_PCI_SEGMENT:
r = 1;
break;
case KVM_CAP_COALESCED_MMIO:
if (vpic) {
r = kvm_ioapic_init(kvm);
if (r) {
+ kvm_io_bus_unregister_dev(kvm, KVM_PIO_BUS,
+ &vpic->dev);
kfree(vpic);
goto create_irqchip_unlock;
}
r = kvm_setup_default_irq_routing(kvm);
if (r) {
mutex_lock(&kvm->irq_lock);
- kfree(kvm->arch.vpic);
- kfree(kvm->arch.vioapic);
- kvm->arch.vpic = NULL;
- kvm->arch.vioapic = NULL;
+ kvm_ioapic_destroy(kvm);
+ kvm_destroy_pic(kvm);
mutex_unlock(&kvm->irq_lock);
}
create_irqchip_unlock:
int emulate_clts(struct kvm_vcpu *vcpu)
{
kvm_x86_ops->set_cr0(vcpu, kvm_read_cr0_bits(vcpu, ~X86_CR0_TS));
+ kvm_x86_ops->fpu_activate(vcpu);
return X86EMUL_CONTINUE;
}
int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr, unsigned long *dest)
{
- struct kvm_vcpu *vcpu = ctxt->vcpu;
-
- switch (dr) {
- case 0 ... 3:
- *dest = kvm_x86_ops->get_dr(vcpu, dr);
- return X86EMUL_CONTINUE;
- default:
- pr_unimpl(vcpu, "%s: unexpected dr %u\n", __func__, dr);
- return X86EMUL_UNHANDLEABLE;
- }
+ return kvm_x86_ops->get_dr(ctxt->vcpu, dr, dest);
}
int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, unsigned long value)
{
unsigned long mask = (ctxt->mode == X86EMUL_MODE_PROT64) ? ~0ULL : ~0U;
- int exception;
- kvm_x86_ops->set_dr(ctxt->vcpu, dr, value & mask, &exception);
- if (exception) {
- /* FIXME: better handling */
- return X86EMUL_UNHANDLEABLE;
- }
- return X86EMUL_CONTINUE;
+ return kvm_x86_ops->set_dr(ctxt->vcpu, dr, value & mask);
}
void kvm_report_emulation_failure(struct kvm_vcpu *vcpu, const char *context)
vcpu->arch.emulate_ctxt.vcpu = vcpu;
vcpu->arch.emulate_ctxt.eflags = kvm_get_rflags(vcpu);
vcpu->arch.emulate_ctxt.mode =
+ (!is_protmode(vcpu)) ? X86EMUL_MODE_REAL :
(vcpu->arch.emulate_ctxt.eflags & X86_EFLAGS_VM)
- ? X86EMUL_MODE_REAL : cs_l
+ ? X86EMUL_MODE_VM86 : cs_l
? X86EMUL_MODE_PROT64 : cs_db
? X86EMUL_MODE_PROT32 : X86EMUL_MODE_PROT16;
trace_kvm_pio(vcpu->run->io.direction == KVM_EXIT_IO_OUT, port,
size, 1);
- val = kvm_register_read(vcpu, VCPU_REGS_RAX);
- memcpy(vcpu->arch.pio_data, &val, 4);
+ if (!vcpu->arch.pio.in) {
+ val = kvm_register_read(vcpu, VCPU_REGS_RAX);
+ memcpy(vcpu->arch.pio_data, &val, 4);
+ }
if (!kernel_pio(vcpu, vcpu->arch.pio_data)) {
complete_pio(vcpu);
* hypercall generates UD from non zero cpl and real mode
* per HYPER-V spec
*/
- if (kvm_x86_ops->get_cpl(vcpu) != 0 ||
- !kvm_read_cr0_bits(vcpu, X86_CR0_PE)) {
+ if (kvm_x86_ops->get_cpl(vcpu) != 0 || !is_protmode(vcpu)) {
kvm_queue_exception(vcpu, UD_VECTOR);
return 0;
}
int kvm_fix_hypercall(struct kvm_vcpu *vcpu)
{
char instruction[3];
- int ret = 0;
unsigned long rip = kvm_rip_read(vcpu);
-
/*
* Blow out the MMU to ensure that no other VCPU has an active mapping
* to ensure that the updated hypercall appears atomically across all
kvm_mmu_zap_all(vcpu->kvm);
kvm_x86_ops->patch_hypercall(vcpu, instruction);
- if (emulator_write_emulated(rip, instruction, 3, vcpu)
- != X86EMUL_CONTINUE)
- ret = -EFAULT;
- return ret;
+ return emulator_write_emulated(rip, instruction, 3, vcpu);
}
static u64 mk_cr_64(u64 curr_cr, u32 new_val)
preempt_disable();
kvm_x86_ops->prepare_guest_switch(vcpu);
- kvm_load_guest_fpu(vcpu);
+ if (vcpu->fpu_active)
+ kvm_load_guest_fpu(vcpu);
local_irq_disable();
sregs->cr3 = vcpu->arch.cr3;
sregs->cr4 = kvm_read_cr4(vcpu);
sregs->cr8 = kvm_get_cr8(vcpu);
- sregs->efer = vcpu->arch.shadow_efer;
+ sregs->efer = vcpu->arch.efer;
sregs->apic_base = kvm_get_apic_base(vcpu);
memset(sregs->interrupt_bitmap, 0, sizeof sregs->interrupt_bitmap);
if (dtable.limit < index * 8 + 7) {
kvm_queue_exception_e(vcpu, GP_VECTOR, selector & 0xfffc);
- return 1;
+ return X86EMUL_PROPAGATE_FAULT;
}
return kvm_read_guest_virt(dtable.base + index*8, seg_desc, sizeof(*seg_desc), vcpu);
}
return kvm_seg.selector;
}
-static int load_segment_descriptor_to_kvm_desct(struct kvm_vcpu *vcpu,
- u16 selector,
- struct kvm_segment *kvm_seg)
-{
- struct desc_struct seg_desc;
-
- if (load_guest_segment_descriptor(vcpu, selector, &seg_desc))
- return 1;
- seg_desct_to_kvm_desct(&seg_desc, selector, kvm_seg);
- return 0;
-}
-
static int kvm_load_realmode_segment(struct kvm_vcpu *vcpu, u16 selector, int seg)
{
struct kvm_segment segvar = {
int type_bits, int seg)
{
struct kvm_segment kvm_seg;
+ struct desc_struct seg_desc;
- if (is_vm86_segment(vcpu, seg) || !(kvm_read_cr0_bits(vcpu, X86_CR0_PE)))
+ if (is_vm86_segment(vcpu, seg) || !is_protmode(vcpu))
return kvm_load_realmode_segment(vcpu, selector, seg);
- if (load_segment_descriptor_to_kvm_desct(vcpu, selector, &kvm_seg))
+
+ if (load_guest_segment_descriptor(vcpu, selector, &seg_desc))
return 1;
+ seg_desct_to_kvm_desct(&seg_desc, selector, &kvm_seg);
kvm_check_segment_descriptor(vcpu, seg, selector);
kvm_seg.type |= type_bits;
kvm_seg.unusable = 1;
kvm_set_segment(vcpu, &kvm_seg, seg);
+ if (selector && !kvm_seg.unusable && kvm_seg.s) {
+ /* mark segment as accessed */
+ seg_desc.type |= 1;
+ save_guest_segment_descriptor(vcpu, selector, &seg_desc);
+ }
return 0;
}
kvm_set_cr8(vcpu, sregs->cr8);
- mmu_reset_needed |= vcpu->arch.shadow_efer != sregs->efer;
+ mmu_reset_needed |= vcpu->arch.efer != sregs->efer;
kvm_x86_ops->set_efer(vcpu, sregs->efer);
kvm_set_apic_base(vcpu, sregs->apic_base);
/* Older userspace won't unhalt the vcpu on reset. */
if (kvm_vcpu_is_bsp(vcpu) && kvm_rip_read(vcpu) == 0xfff0 &&
sregs->cs.selector == 0xf000 && sregs->cs.base == 0xffff0000 &&
- !(kvm_read_cr0_bits(vcpu, X86_CR0_PE)))
+ !is_protmode(vcpu))
vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
vcpu_put(vcpu);
void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
{
- if (!vcpu->fpu_active || vcpu->guest_fpu_loaded)
+ if (vcpu->guest_fpu_loaded)
return;
vcpu->guest_fpu_loaded = 1;
kvm_fx_save(&vcpu->arch.host_fx_image);
kvm_fx_restore(&vcpu->arch.guest_fx_image);
+ trace_kvm_fpu(1);
}
-EXPORT_SYMBOL_GPL(kvm_load_guest_fpu);
void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
{
kvm_fx_restore(&vcpu->arch.host_fx_image);
++vcpu->stat.fpu_reload;
set_bit(KVM_REQ_DEACTIVATE_FPU, &vcpu->requests);
+ trace_kvm_fpu(0);
}
-EXPORT_SYMBOL_GPL(kvm_put_guest_fpu);
void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
{
projects / karo-tx-linux.git / blobdiff