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Diffstat (limited to 'arch/x86/kvm/lapic.c')
-rw-r--r--arch/x86/kvm/lapic.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index ae99d83f81a..4bfd458a4f3 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -522,10 +522,15 @@ static u32 __apic_read(struct kvm_lapic *apic, unsigned int offset)
return val;
}
+static inline struct kvm_lapic *to_lapic(struct kvm_io_device *dev)
+{
+ return container_of(dev, struct kvm_lapic, dev);
+}
+
static void apic_mmio_read(struct kvm_io_device *this,
gpa_t address, int len, void *data)
{
- struct kvm_lapic *apic = (struct kvm_lapic *)this->private;
+ struct kvm_lapic *apic = to_lapic(this);
unsigned int offset = address - apic->base_address;
unsigned char alignment = offset & 0xf;
u32 result;
@@ -606,7 +611,7 @@ static void apic_manage_nmi_watchdog(struct kvm_lapic *apic, u32 lvt0_val)
static void apic_mmio_write(struct kvm_io_device *this,
gpa_t address, int len, const void *data)
{
- struct kvm_lapic *apic = (struct kvm_lapic *)this->private;
+ struct kvm_lapic *apic = to_lapic(this);
unsigned int offset = address - apic->base_address;
unsigned char alignment = offset & 0xf;
u32 val;
@@ -723,7 +728,7 @@ static void apic_mmio_write(struct kvm_io_device *this,
static int apic_mmio_range(struct kvm_io_device *this, gpa_t addr,
int len, int size)
{
- struct kvm_lapic *apic = (struct kvm_lapic *)this->private;
+ struct kvm_lapic *apic = to_lapic(this);
int ret = 0;
@@ -917,6 +922,12 @@ static struct kvm_timer_ops lapic_timer_ops = {
.is_periodic = lapic_is_periodic,
};
+static const struct kvm_io_device_ops apic_mmio_ops = {
+ .read = apic_mmio_read,
+ .write = apic_mmio_write,
+ .in_range = apic_mmio_range,
+};
+
int kvm_create_lapic(struct kvm_vcpu *vcpu)
{
struct kvm_lapic *apic;
@@ -951,10 +962,7 @@ int kvm_create_lapic(struct kvm_vcpu *vcpu)
vcpu->arch.apic_base = APIC_DEFAULT_PHYS_BASE;
kvm_lapic_reset(vcpu);
- apic->dev.read = apic_mmio_read;
- apic->dev.write = apic_mmio_write;
- apic->dev.in_range = apic_mmio_range;
- apic->dev.private = apic;
+ kvm_iodevice_init(&apic->dev, &apic_mmio_ops);
return 0;
nomem_free_apic: