511acad507
This patch integrates three region maps into each PD session to reduce the session overhead and to simplify the PD creation procedure. Please refer to the issue cited below for an elaborative discussion. Note the API change: With this patch, the semantics of core's RM service have changed. Now, the service is merely a tool for creating and destroying managed dataspaces, which are rarely needed. Regular components no longer need a RM session. For this reason, the corresponding argument for the 'Process' and 'Child' constructors has been removed. The former interface of the 'Rm_session' is not named 'Region_map'. As a minor refinement, the 'Fault_type' enum values are now part of the 'Region_map::State' struct. Issue #1938
79 lines
1.7 KiB
C++
79 lines
1.7 KiB
C++
/*
|
|
* \brief Hook functions for bootstrapping the component
|
|
* \author Norman Feske
|
|
* \date 2015-12-17
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2015 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__BASE__COMPONENT_H_
|
|
#define _INCLUDE__BASE__COMPONENT_H_
|
|
|
|
#include <base/stdint.h>
|
|
#include <parent/parent.h>
|
|
#include <base/entrypoint.h>
|
|
#include <ram_session/capability.h>
|
|
#include <cpu_session/capability.h>
|
|
#include <rm_session/rm_session.h>
|
|
#include <pd_session/pd_session.h>
|
|
|
|
|
|
namespace Genode { struct Environment; }
|
|
|
|
|
|
/**
|
|
* Interface to be provided by the component implementation
|
|
*/
|
|
namespace Component
|
|
{
|
|
Genode::size_t stack_size();
|
|
char const *name();
|
|
void construct(Genode::Environment &);
|
|
}
|
|
|
|
|
|
struct Genode::Environment
|
|
{
|
|
virtual Parent &parent() = 0;
|
|
|
|
/**
|
|
* RAM session of the component
|
|
*
|
|
* The RAM Session represents a budget of memory (quota) that is available
|
|
* to the component. This budget can be used to allocate RAM dataspaces.
|
|
*/
|
|
virtual Ram_session &ram() = 0;
|
|
|
|
/**
|
|
* CPU session of the component
|
|
*
|
|
* This session is used to create the threads of the component.
|
|
*/
|
|
virtual Cpu_session &cpu() = 0;
|
|
|
|
/**
|
|
* Region map of the component's address space
|
|
*/
|
|
virtual Region_map &rm() = 0;
|
|
|
|
/**
|
|
* PD session of the component as created by the parent
|
|
*/
|
|
virtual Pd_session &pd() = 0;
|
|
|
|
/**
|
|
* Entrypoint for handling RPC requests and signals
|
|
*/
|
|
virtual Entrypoint &ep() = 0;
|
|
|
|
virtual Ram_session_capability ram_session_cap() = 0;
|
|
virtual Cpu_session_capability cpu_session_cap() = 0;
|
|
};
|
|
|
|
#endif /* _INCLUDE__BASE__COMPONENT_H_ */
|