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yaml
---
r: 215907
b: refs/heads/master
c: a92601b
h: refs/heads/master
i:
  215905: c39235c
  215903: f15d970
v: v3
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Mohammed Gamal authored and Avi Kivity committed Oct 24, 2010
1 parent 02f92b2 commit 8134c67
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Showing 2 changed files with 7 additions and 60 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 63995653ade16deacaea5b49ceaf6376314593ac
refs/heads/master: a92601bb707f6f49fd5563ef3d09928e70cc222e
65 changes: 6 additions & 59 deletions trunk/arch/x86/kvm/vmx.c
Original file line number Diff line number Diff line change
Expand Up @@ -155,11 +155,6 @@ struct vcpu_vmx {
u32 limit;
u32 ar;
} tr, es, ds, fs, gs;
struct {
bool pending;
u8 vector;
unsigned rip;
} irq;
} rmode;
int vpid;
bool emulation_required;
Expand Down Expand Up @@ -1028,16 +1023,8 @@ static void vmx_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
}

if (vmx->rmode.vm86_active) {
vmx->rmode.irq.pending = true;
vmx->rmode.irq.vector = nr;
vmx->rmode.irq.rip = kvm_rip_read(vcpu);
if (kvm_exception_is_soft(nr))
vmx->rmode.irq.rip +=
vmx->vcpu.arch.event_exit_inst_len;
intr_info |= INTR_TYPE_SOFT_INTR;
vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, intr_info);
vmcs_write32(VM_ENTRY_INSTRUCTION_LEN, 1);
kvm_rip_write(vcpu, vmx->rmode.irq.rip - 1);
if (kvm_inject_realmode_interrupt(vcpu, nr) != EMULATE_DONE)
kvm_make_request(KVM_REQ_TRIPLE_FAULT, vcpu);
return;
}

Expand Down Expand Up @@ -2816,16 +2803,8 @@ static void vmx_inject_irq(struct kvm_vcpu *vcpu)

++vcpu->stat.irq_injections;
if (vmx->rmode.vm86_active) {
vmx->rmode.irq.pending = true;
vmx->rmode.irq.vector = irq;
vmx->rmode.irq.rip = kvm_rip_read(vcpu);
if (vcpu->arch.interrupt.soft)
vmx->rmode.irq.rip +=
vmx->vcpu.arch.event_exit_inst_len;
vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
irq | INTR_TYPE_SOFT_INTR | INTR_INFO_VALID_MASK);
vmcs_write32(VM_ENTRY_INSTRUCTION_LEN, 1);
kvm_rip_write(vcpu, vmx->rmode.irq.rip - 1);
if (kvm_inject_realmode_interrupt(vcpu, irq) != EMULATE_DONE)
kvm_make_request(KVM_REQ_TRIPLE_FAULT, vcpu);
return;
}
intr = irq | INTR_INFO_VALID_MASK;
Expand Down Expand Up @@ -2857,14 +2836,8 @@ static void vmx_inject_nmi(struct kvm_vcpu *vcpu)

++vcpu->stat.nmi_injections;
if (vmx->rmode.vm86_active) {
vmx->rmode.irq.pending = true;
vmx->rmode.irq.vector = NMI_VECTOR;
vmx->rmode.irq.rip = kvm_rip_read(vcpu);
vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
NMI_VECTOR | INTR_TYPE_SOFT_INTR |
INTR_INFO_VALID_MASK);
vmcs_write32(VM_ENTRY_INSTRUCTION_LEN, 1);
kvm_rip_write(vcpu, vmx->rmode.irq.rip - 1);
if (kvm_inject_realmode_interrupt(vcpu, NMI_VECTOR) != EMULATE_DONE)
kvm_make_request(KVM_REQ_TRIPLE_FAULT, vcpu);
return;
}
vmcs_write32(VM_ENTRY_INTR_INFO_FIELD,
Expand Down Expand Up @@ -3826,29 +3799,6 @@ static void vmx_recover_nmi_blocking(struct vcpu_vmx *vmx)
ktime_to_ns(ktime_sub(ktime_get(), vmx->entry_time));
}

/*
* Failure to inject an interrupt should give us the information
* in IDT_VECTORING_INFO_FIELD. However, if the failure occurs
* when fetching the interrupt redirection bitmap in the real-mode
* tss, this doesn't happen. So we do it ourselves.
*/
static void fixup_rmode_irq(struct vcpu_vmx *vmx, u32 *idt_vectoring_info)
{
vmx->rmode.irq.pending = 0;
if (kvm_rip_read(&vmx->vcpu) + 1 != vmx->rmode.irq.rip)
return;
kvm_rip_write(&vmx->vcpu, vmx->rmode.irq.rip);
if (*idt_vectoring_info & VECTORING_INFO_VALID_MASK) {
*idt_vectoring_info &= ~VECTORING_INFO_TYPE_MASK;
*idt_vectoring_info |= INTR_TYPE_EXT_INTR;
return;
}
*idt_vectoring_info =
VECTORING_INFO_VALID_MASK
| INTR_TYPE_EXT_INTR
| vmx->rmode.irq.vector;
}

static void __vmx_complete_interrupts(struct vcpu_vmx *vmx,
u32 idt_vectoring_info,
int instr_len_field,
Expand All @@ -3858,9 +3808,6 @@ static void __vmx_complete_interrupts(struct vcpu_vmx *vmx,
int type;
bool idtv_info_valid;

if (vmx->rmode.irq.pending)
fixup_rmode_irq(vmx, &idt_vectoring_info);

idtv_info_valid = idt_vectoring_info & VECTORING_INFO_VALID_MASK;

vmx->vcpu.arch.nmi_injected = false;
Expand Down

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