Added devices, device manager, and nvram device

[palacios.git] / palacios / include / palacios / vmm_dev_mgr.h

diff --git a/palacios/include/palacios/vmm_dev_mgr.h b/palacios/include/palacios/vmm_dev_mgr.h
new file mode 100644 (file)
index 0000000..5f1e96e
--- /dev/null
+++ b/palacios/include/palacios/vmm_dev_mgr.h
@@ -0,0 +1,93 @@
+#ifndef _vmm_dev_mgr
+#define _vmm_dev_mgr
+
+#include <palacios/vmm_types.h>
+#include <palacios/vmm_device_types.h>
+
+struct vm_device;
+struct guest_info;
+
+
+struct vmm_dev_mgr {
+  struct guest_info   *vm;
+  struct vm_device  *dev_list;
+  uint_t             num_devices;
+};
+
+
+enum access_control {DEVICE_EMULATED, DEVICE_PASSTHROUGH} ;
+enum access_type {DEVICE_READ, DEVICE_WRITE, DEVICE_READWRITE} ;
+
+struct vm_device_io_hook {
+  enum access_control control;
+  enum access_type    atype;
+
+  ushort_t            guest_port;
+
+  // Do not touch anything below this
+  
+  struct vm_device_io_hook *next, *prev;
+};
+
+struct vm_device_mem_hook {
+  enum access_control control;
+  enum access_type    atype;
+
+  void             *guest_physical_start;
+  void             *guest_physical_end;
+
+  // Do not touch anything below this
+  
+  struct vm_device_mem_hook *next, *prev;
+
+};
+
+
+
+// Registration of devices
+
+//
+// The following device manager functions should only be called
+// when the guest is stopped
+//
+
+int dev_mgr_init(struct vmm_dev_mgr *mgr, struct guest_info *vm);
+int dev_mgr_deinit(struct vmm_dev_mgr *mgr);
+
+int dev_mgr_attach_device(struct guest_info *vm, 
+                         struct vm_device *device);
+int dev_mgr_detach_device(struct guest_info *vm, 
+                         struct vm_device *device);
+
+
+int dev_mgr_hook_io(struct guest_info    *vm,
+                   struct vm_device   *device,
+                   ushort_t            portno,
+                   enum access_control control,
+                   enum access_type    atype);
+
+int dev_mgr_unhook_io(struct guest_info    *vm,
+                     struct vm_device   *device,
+                     ushort_t            portno);
+
+int dev_mgr_hook_mem(struct guest_info    *vm,
+                    struct vm_device   *device,
+                    void               *guest_physical_address_start,
+                    void               *guest_physical_address_end,
+                    enum access_control control,
+                    enum access_type    atype);
+
+int dev_mgr_unhook_mem(struct guest_info    *vm,
+                      struct vm_device   *device,
+                      void               *guest_physical_address_start,
+                      void               *guest_physical_address_end);
+
+//
+// Strictly a helper - the device is resposible for unhooking on disconnect
+//
+
+int dev_mgr_unhook_device(struct guest_info  *vm,
+                         struct vm_device *device);
+
+
+#endif