KVM: Add support for in-kernel PIC emulation

Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index a42a6f314a85..d71712ddebee 100644
--- a/drivers/kvm/kvm.h
+++ b/drivers/kvm/kvm.h
@@ -408,8 +408,19 @@ struct kvm {
         struct file *filp;
         struct kvm_io_bus mmio_bus;
         struct kvm_io_bus pio_bus;
+        struct kvm_pic *vpic;
 };
 
+static inline struct kvm_pic *pic_irqchip(struct kvm *kvm)
+{
+        return kvm->vpic;
+}
+
+static inline int irqchip_in_kernel(struct kvm *kvm)
+{
+        return pic_irqchip(kvm) != 0;
+}
+
 struct descriptor_table {
         u16 limit;
         unsigned long base;