base-hw: introduce VM session interface

The VM session interface is meant to be generic, but first will be used in the context
of TrustZone only.

base-hw/include/vm_session/capability.h

@@ -0,0 +1,22 @@
+/*
+ * \brief  VM-session capability type
+ * \author Stefan Kalkowski
+ * \date   2012-10-02
+ */
+
+/*
+ * Copyright (C) 2012 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#ifndef _INCLUDE__VM_SESSION__CAPABILITY_H_
+#define _INCLUDE__VM_SESSION__CAPABILITY_H_
+
+#include <base/capability.h>
+#include <vm_session/vm_session.h>
+
+namespace Genode { typedef Capability<Vm_session> Vm_session_capability; }
+
+#endif /* _INCLUDE__VM_SESSION__CAPABILITY_H_ */

base-hw/include/vm_session/client.h

@@ -0,0 +1,38 @@
+/*
+ * \brief  Client-side vm session interface
+ * \author Stefan Kalkowski
+ * \date   2012-10-02
+ */
+
+/*
+ * Copyright (C) 2012 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#ifndef _INCLUDE__VM_SESSION__CLIENT_H_
+#define _INCLUDE__VM_SESSION__CLIENT_H_
+
+#include <vm_session/capability.h>
+#include <base/rpc_client.h>
+
+namespace Genode {
+
+	struct Vm_session_client : Rpc_client<Vm_session>
+	{
+		explicit Vm_session_client(Vm_session_capability session)
+		: Rpc_client<Vm_session>(session) { }
+
+		Dataspace_capability cpu_state() {
+			return call<Rpc_cpu_state>(); }
+
+		void exception_handler(Signal_context_capability handler) {
+			call<Rpc_exception_handler>(handler); }
+
+		void run() {
+			call<Rpc_run>(); }
+	};
+}
+
+#endif /* _INCLUDE__VM_SESSION__CLIENT_H_ */

base-hw/include/vm_session/connection.h

@@ -0,0 +1,42 @@
+/*
+ * \brief  Connection to VM service
+ * \author Stefan Kalkowski
+ * \date   2012-10-02
+ */
+
+/*
+ * Copyright (C) 2012 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#ifndef _INCLUDE__VM_SESSION__CONNECTION_H_
+#define _INCLUDE__VM_SESSION__CONNECTION_H_
+
+#include <vm_session/client.h>
+#include <cpu_session/cpu_session.h>
+#include <base/connection.h>
+
+namespace Genode {
+
+	struct Vm_connection : Connection<Vm_session>, Vm_session_client
+	{
+		/**
+		 * Constructor
+		 *
+		 * \param label     initial session label
+		 * \param priority  designated priority of the VM
+		 * \param affinity  which physical CPU the VM should run on top of
+		 */
+		Vm_connection(const char *label = "",
+		              long priority = Cpu_session::DEFAULT_PRIORITY,
+		              unsigned long affinity = 0)
+		: Connection<Vm_session>(
+			session("priority=0x%lx, affinity=0x%lx, ram_quota=8K, label=\"%s\"",
+			        priority, affinity, label)),
+		  Vm_session_client(cap()) { }
+	};
+}
+
+#endif /* _INCLUDE__VM_SESSION__CONNECTION_H_ */

base-hw/include/vm_session/vm_session.h

@@ -0,0 +1,57 @@
+ /*
+ * \brief  Vm session interface
+ * \author Stefan Kalkowski
+ * \date   2012-10-02
+ */
+
+/*
+ * Copyright (C) 2012 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#ifndef _INCLUDE__VM_SESSION__VM_SESSION_H_
+#define _INCLUDE__VM_SESSION__VM_SESSION_H_
+
+#include <base/rpc_args.h>
+#include <base/signal.h>
+#include <session/session.h>
+#include <ram_session/ram_session.h>
+
+namespace Genode {
+
+	struct Vm_session : Session
+	{
+			static const char *service_name() { return "VM"; }
+
+			virtual ~Vm_session() { }
+
+			/**
+			 * Get dataspace of the CPU state of the VM
+			 */
+			virtual Dataspace_capability cpu_state(void) = 0;
+
+			/**
+			 * Register signal handler for exceptions of the Vm
+			 */
+			virtual void exception_handler(Signal_context_capability handler) = 0;
+
+			/**
+			 * (Re-)Start execution of the VM
+			 */
+			virtual void run(void) {}
+
+			/*********************
+			 ** RPC declaration **
+			 *********************/
+
+			GENODE_RPC(Rpc_cpu_state, Dataspace_capability, cpu_state);
+			GENODE_RPC(Rpc_exception_handler, void, exception_handler,
+			           Signal_context_capability);
+			GENODE_RPC(Rpc_run, void, run);
+			GENODE_RPC_INTERFACE(Rpc_cpu_state, Rpc_exception_handler, Rpc_run);
+	};
+}
+
+#endif /* _INCLUDE__VM_SESSION__VM_SESSION_H_ */