genode/repos/base/include/vm_session/vm_session.h
2019-01-30 13:35:28 +01:00

106 lines
2.7 KiB
C++

/*
* \brief VM-session interface
* \author Stefan Kalkowski
* \date 2012-10-02
*/
/*
* Copyright (C) 2012-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
#ifndef _INCLUDE__VM_SESSION__VM_SESSION_H_
#define _INCLUDE__VM_SESSION__VM_SESSION_H_
/* Genode includes */
#include <base/rpc_args.h>
#include <base/signal.h>
#include <session/session.h>
#include <ram_session/ram_session.h>
namespace Genode { struct Vm_session; }
struct Genode::Vm_session : Session
{
static const char *service_name() { return "VM"; }
enum { CAP_QUOTA = 3 };
class Invalid_dataspace : Exception { };
/**
* Destructor
*/
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) {}
/**
* Stop execution of the VM
*/
virtual void pause(void) {}
/**
* Attach dataspace to the guest-physical memory address space
*
* \param ds dataspace to be attached
* \param vm_addr address in guest-physical memory address space
*/
virtual void attach(Dataspace_capability ds, addr_t vm_addr) = 0;
/**
* Invalidate region of the guest-physical memory address space
*
* \param vm_addr address in guest-physical memory address space
* \param size size of the region to invalidate
*/
virtual void detach(addr_t vm_addr, size_t size) = 0;
/**
* Attach cpu-local interrupt-controller's interface to
* guest-physical memory address space.
*
* \param vm_addr address in guest-physical memory address space
*
* Note: this is currently only support for ARM interrupt-controller
* hardware virtualization
*/
virtual void attach_pic(addr_t vm_addr) = 0;
/*********************
** 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(Rpc_pause, void, pause);
GENODE_RPC_THROW(Rpc_attach, void, attach,
GENODE_TYPE_LIST(Invalid_dataspace),
Dataspace_capability, addr_t);
GENODE_RPC(Rpc_detach, void, detach, addr_t, size_t);
GENODE_RPC(Rpc_attach_pic, void, attach_pic, addr_t);
GENODE_RPC_INTERFACE(Rpc_cpu_state, Rpc_exception_handler,
Rpc_run, Rpc_pause, Rpc_attach, Rpc_detach,
Rpc_attach_pic);
};
#endif /* _INCLUDE__VM_SESSION__VM_SESSION_H_ */