82 lines
1.7 KiB
C++
82 lines
1.7 KiB
C++
/*
|
|
* \brief Protection-domain facility
|
|
* \author Norman Feske
|
|
* \date 2009-10-02
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2009-2013 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 _CORE__INCLUDE__PLATFORM_PD_H_
|
|
#define _CORE__INCLUDE__PLATFORM_PD_H_
|
|
|
|
/* core includes */
|
|
#include <platform_thread.h>
|
|
#include <address_space.h>
|
|
|
|
/* Codezero includes */
|
|
#include <codezero/syscalls.h>
|
|
|
|
namespace Genode {
|
|
|
|
class Platform_thread;
|
|
class Platform_pd : public Address_space
|
|
{
|
|
private:
|
|
|
|
enum { MAX_THREADS_PER_PD = 32 };
|
|
enum { UTCB_VIRT_BASE = 0x30000000 };
|
|
enum { UTCB_AREA_SIZE = MAX_THREADS_PER_PD*sizeof(struct Codezero::utcb) };
|
|
|
|
unsigned _space_id;
|
|
|
|
bool utcb_in_use[MAX_THREADS_PER_PD];
|
|
|
|
public:
|
|
|
|
/**
|
|
* Constructors
|
|
*/
|
|
Platform_pd(bool core);
|
|
Platform_pd(char const *, signed pd_id = -1, bool create = true);
|
|
|
|
/**
|
|
* Destructor
|
|
*/
|
|
~Platform_pd();
|
|
|
|
/**
|
|
* Bind thread to protection domain
|
|
*
|
|
* \return 0 on success or
|
|
* -1 if thread ID allocation failed.
|
|
*/
|
|
int bind_thread(Platform_thread *thread);
|
|
|
|
/**
|
|
* Unbind thread from protection domain
|
|
*
|
|
* Free the thread's slot and update thread object.
|
|
*/
|
|
void unbind_thread(Platform_thread *thread);
|
|
|
|
/**
|
|
* Assign parent interface to protection domain
|
|
*/
|
|
int assign_parent(Native_capability parent) { return 0; }
|
|
|
|
|
|
/*****************************
|
|
** Address-space interface **
|
|
*****************************/
|
|
|
|
void flush(addr_t, size_t) { PDBG("not implemented"); }
|
|
};
|
|
}
|
|
|
|
#endif /* _CORE__INCLUDE__PLATFORM_PD_H_ */
|