KVM: Add support for in-kernel pio handlers
Useful for the PIC and PIT.
Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index 31846b1..a7c5e6b 100644
--- a/drivers/kvm/kvm.h
+++ b/drivers/kvm/kvm.h
@@ -241,6 +241,7 @@
struct page *guest_pages[2];
unsigned guest_page_offset;
int in;
+ int port;
int size;
int string;
int down;
@@ -303,7 +304,8 @@
static inline void kvm_iodevice_destructor(struct kvm_io_device *dev)
{
- dev->destructor(dev);
+ if (dev->destructor)
+ dev->destructor(dev);
}
/*
@@ -453,6 +455,7 @@
struct list_head vm_list;
struct file *filp;
struct kvm_io_bus mmio_bus;
+ struct kvm_io_bus pio_bus;
};
struct descriptor_table {