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Diffstat (limited to 'arch/x86/kvm/i8259.c')
-rw-r--r--arch/x86/kvm/i8259.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 1ccb50c74f1..2520922282d 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -444,10 +444,15 @@ static int picdev_in_range(struct kvm_io_device *this, gpa_t addr,
}
}
+static inline struct kvm_pic *to_pic(struct kvm_io_device *dev)
+{
+ return container_of(dev, struct kvm_pic, dev);
+}
+
static void picdev_write(struct kvm_io_device *this,
gpa_t addr, int len, const void *val)
{
- struct kvm_pic *s = this->private;
+ struct kvm_pic *s = to_pic(this);
unsigned char data = *(unsigned char *)val;
if (len != 1) {
@@ -474,7 +479,7 @@ static void picdev_write(struct kvm_io_device *this,
static void picdev_read(struct kvm_io_device *this,
gpa_t addr, int len, void *val)
{
- struct kvm_pic *s = this->private;
+ struct kvm_pic *s = to_pic(this);
unsigned char data = 0;
if (len != 1) {
@@ -516,6 +521,12 @@ static void pic_irq_request(void *opaque, int level)
}
}
+static const struct kvm_io_device_ops picdev_ops = {
+ .read = picdev_read,
+ .write = picdev_write,
+ .in_range = picdev_in_range,
+};
+
struct kvm_pic *kvm_create_pic(struct kvm *kvm)
{
struct kvm_pic *s;
@@ -534,10 +545,7 @@ struct kvm_pic *kvm_create_pic(struct kvm *kvm)
/*
* Initialize PIO device
*/
- s->dev.read = picdev_read;
- s->dev.write = picdev_write;
- s->dev.in_range = picdev_in_range;
- s->dev.private = s;
+ kvm_iodevice_init(&s->dev, &picdev_ops);
kvm_io_bus_register_dev(&kvm->pio_bus, &s->dev);
return s;
}