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path: root/drivers/kvm/ioapic.c
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Diffstat (limited to 'drivers/kvm/ioapic.c')
-rw-r--r--drivers/kvm/ioapic.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/kvm/ioapic.c b/drivers/kvm/ioapic.c
index e14b7c724e67..cf1d50b3549b 100644
--- a/drivers/kvm/ioapic.c
+++ b/drivers/kvm/ioapic.c
@@ -371,18 +371,27 @@ static void ioapic_mmio_write(struct kvm_io_device *this, gpa_t addr, int len,
}
}
+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;