220 lines
4.8 KiB
C++
220 lines
4.8 KiB
C++
/*
|
|
* \brief Platform specific part of a Genode protection domain
|
|
* \author Martin Stein
|
|
* \author Stefan Kalkowski
|
|
* \date 2012-02-12
|
|
*/
|
|
|
|
/*
|
|
* 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 <translation_table.h>
|
|
#include <platform.h>
|
|
#include <address_space.h>
|
|
#include <translation_table_allocator.h>
|
|
#include <object.h>
|
|
#include <kernel/configuration.h>
|
|
#include <kernel/object.h>
|
|
#include <kernel/pd.h>
|
|
|
|
namespace Hw
|
|
{
|
|
using namespace Kernel;
|
|
using namespace Genode;
|
|
|
|
/**
|
|
* Memory virtualization interface of a protection domain
|
|
*/
|
|
class Address_space;
|
|
}
|
|
|
|
namespace Genode
|
|
{
|
|
class Platform_thread; /* forward declaration */
|
|
|
|
class Cap_space;
|
|
|
|
/**
|
|
* Platform specific part of a Genode protection domain
|
|
*/
|
|
class Platform_pd;
|
|
|
|
/**
|
|
* Platform specific part of Core's protection domain
|
|
*/
|
|
class Core_platform_pd;
|
|
}
|
|
|
|
|
|
class Hw::Address_space : public Genode::Address_space
|
|
{
|
|
private:
|
|
|
|
friend class Genode::Platform;
|
|
friend class Genode::Mapped_mem_allocator;
|
|
|
|
using Table_allocator =
|
|
Translation_table_allocator_tpl<DEFAULT_TRANSLATION_TABLE_MAX>;
|
|
|
|
Genode::Lock _lock; /* table lock */
|
|
Genode::Translation_table * _tt; /* table virt addr */
|
|
Genode::Translation_table * _tt_phys; /* table phys addr */
|
|
Genode::Translation_table_allocator * _tt_alloc; /* table allocator */
|
|
Kernel::Pd * _kernel_pd;
|
|
|
|
static inline Genode::Core_mem_allocator * _cma();
|
|
static inline void * _table_alloc();
|
|
|
|
protected:
|
|
|
|
|
|
/**
|
|
* Core-specific constructor
|
|
*
|
|
* \param pd pointer to kernel's pd object
|
|
* \param tt pointer to translation table
|
|
* \param tt_alloc pointer to translation table allocator
|
|
*/
|
|
Address_space(Kernel::Pd * pd,
|
|
Genode::Translation_table * tt,
|
|
Genode::Translation_table_allocator * tt_alloc);
|
|
|
|
public:
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* \param pd pointer to kernel's pd object
|
|
*/
|
|
Address_space(Kernel::Pd* pd);
|
|
|
|
~Address_space();
|
|
|
|
/**
|
|
* Insert memory mapping into translation table of the address space
|
|
*
|
|
* \param virt virtual start address
|
|
* \param phys physical start address
|
|
* \param size size of memory region
|
|
* \param flags translation table flags (e.g. caching attributes)
|
|
*/
|
|
bool insert_translation(Genode::addr_t virt, Genode::addr_t phys,
|
|
Genode::size_t size, Genode::Page_flags flags);
|
|
|
|
|
|
/*****************************
|
|
** Address-space interface **
|
|
*****************************/
|
|
|
|
void flush(Genode::addr_t, Genode::size_t);
|
|
|
|
|
|
/***************
|
|
** Accessors **
|
|
***************/
|
|
|
|
Kernel::Pd * kernel_pd() { return _kernel_pd; }
|
|
Genode::Translation_table * translation_table() { return _tt; }
|
|
Genode::Translation_table * translation_table_phys() {
|
|
return _tt_phys; }
|
|
};
|
|
|
|
|
|
class Genode::Cap_space
|
|
{
|
|
private:
|
|
|
|
enum { SLAB_SIZE = 2 * get_page_size() };
|
|
|
|
using Cap_slab = Tslab<Kernel::Object_identity_reference,
|
|
SLAB_SIZE>;
|
|
|
|
uint8_t _initial_sb[SLAB_SIZE];
|
|
Cap_slab _slab;
|
|
|
|
public:
|
|
|
|
Cap_space();
|
|
|
|
Cap_slab & capability_slab() { return _slab; }
|
|
|
|
void upgrade_slab(Allocator &alloc);
|
|
};
|
|
|
|
|
|
class Genode::Platform_pd : public Hw::Address_space,
|
|
public Genode::Cap_space,
|
|
public Kernel_object<Kernel::Pd>
|
|
{
|
|
private:
|
|
|
|
Native_capability _parent;
|
|
bool _thread_associated = false;
|
|
char const * const _label;
|
|
|
|
protected:
|
|
|
|
/**
|
|
* Constructor for core pd
|
|
*
|
|
* \param tt translation table address
|
|
* \param tt_alloc translation table allocator
|
|
*/
|
|
Platform_pd(Translation_table * tt,
|
|
Translation_table_allocator * tt_alloc);
|
|
|
|
public:
|
|
|
|
/**
|
|
* Constructor for non-core pd
|
|
*
|
|
* \param label name of protection domain
|
|
*/
|
|
Platform_pd(Allocator * md_alloc, char const *label);
|
|
|
|
/**
|
|
* Destructor
|
|
*/
|
|
~Platform_pd();
|
|
|
|
/**
|
|
* Bind thread 't' to protection domain
|
|
*/
|
|
bool bind_thread(Platform_thread * t);
|
|
|
|
/**
|
|
* Unbind thread 't' from protection domain
|
|
*/
|
|
void unbind_thread(Platform_thread *t);
|
|
|
|
|
|
/**
|
|
* Assign parent interface to protection domain
|
|
*/
|
|
void assign_parent(Native_capability parent);
|
|
|
|
|
|
/***************
|
|
** Accessors **
|
|
***************/
|
|
|
|
char const * const label() { return _label; }
|
|
Native_capability parent() { return _parent; }
|
|
};
|
|
|
|
|
|
struct Genode::Core_platform_pd : Genode::Platform_pd
|
|
{
|
|
Core_platform_pd();
|
|
};
|
|
|
|
#endif /* _CORE__INCLUDE__PLATFORM_PD_H_ */
|