KVM: Split IOAPIC reset function and export for kernel RESET
Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/drivers/kvm/ioapic.c b/drivers/kvm/ioapic.c
index e14b7c7..cf1d50b 100644
--- a/drivers/kvm/ioapic.c
+++ b/drivers/kvm/ioapic.c
@@ -371,18 +371,27 @@
}
}
+void kvm_ioapic_reset(struct kvm_ioapic *ioapic)
+{
+ int i;
+
+ for (i = 0; i < IOAPIC_NUM_PINS; i++)
+ ioapic->redirtbl[i].fields.mask = 1;
+ ioapic->base_address = IOAPIC_DEFAULT_BASE_ADDRESS;
+ ioapic->ioregsel = 0;
+ ioapic->irr = 0;
+ ioapic->id = 0;
+}
+
int kvm_ioapic_init(struct kvm *kvm)
{
struct kvm_ioapic *ioapic;
- int i;
ioapic = kzalloc(sizeof(struct kvm_ioapic), GFP_KERNEL);
if (!ioapic)
return -ENOMEM;
kvm->vioapic = ioapic;
- for (i = 0; i < IOAPIC_NUM_PINS; i++)
- ioapic->redirtbl[i].fields.mask = 1;
- ioapic->base_address = IOAPIC_DEFAULT_BASE_ADDRESS;
+ kvm_ioapic_reset(ioapic);
ioapic->dev.read = ioapic_mmio_read;
ioapic->dev.write = ioapic_mmio_write;
ioapic->dev.in_range = ioapic_in_range;
diff --git a/drivers/kvm/irq.h b/drivers/kvm/irq.h
index e08ae10..5ad3cfd 100644
--- a/drivers/kvm/irq.h
+++ b/drivers/kvm/irq.h
@@ -140,6 +140,7 @@
int kvm_create_lapic(struct kvm_vcpu *vcpu);
void kvm_lapic_reset(struct kvm_vcpu *vcpu);
void kvm_pic_reset(struct kvm_kpic_state *s);
+void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
void kvm_free_lapic(struct kvm_vcpu *vcpu);
u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu);
void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8);