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hw_vea9x4: re-enable TrustZone support

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Stefan Kalkowski 2013-11-27 16:32:12 +01:00 committed by Norman Feske
parent 7bf73fb0c1
commit 23ce6dad50
5 changed files with 102 additions and 6 deletions
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33
base-hw/include/platform/vea9x4/drivers/trustzone.h Normal file
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@ -0,0 +1,33 @@
/*
* \brief TrustZone specific definitions for the Versatile Express board
* \author Stefan Kalkowski
* \date 2013-11-15
*/
/*
* Copyright (C) 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 _INCLUDE__PLATFORM__VEA9X4__DRIVERS__TRUSTZONE_H_
#define _INCLUDE__PLATFORM__VEA9X4__DRIVERS__TRUSTZONE_H_
/* Genode includes */
#include <drivers/board_base.h>
namespace Trustzone
{
enum {
VM_STATE_SIZE = 1 << 20,
SECURE_RAM_BASE = Genode::Board_base::RAM_3_BASE,
SECURE_RAM_SIZE = Genode::Board_base::RAM_3_SIZE - VM_STATE_SIZE,
VM_STATE_BASE = SECURE_RAM_BASE + SECURE_RAM_SIZE,
NONSECURE_RAM_BASE = Genode::Board_base::RAM_1_BASE,
NONSECURE_RAM_SIZE = 0x40000000,
};
}
#endif /* _INCLUDE__PLATFORM__VEA9X4__DRIVERS__TRUSTZONE_H_ */

0
base-hw/src/core/vea9x4/tlb.h → base-hw/src/core/vea9x4/no_trustzone/tlb.h
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11
base-hw/src/core/vea9x4/trustzone/platform_services.cc
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@ -13,6 +13,7 @@
/* Genode includes */
#include <base/service.h>
#include <drivers/trustzone.h>
/* Core includes */
#include <platform.h>
@ -29,7 +30,15 @@ void Genode::platform_add_local_services(Genode::Rpc_entrypoint *ep,
{
using namespace Genode;
static Vm_root vm_root(ep, sh, platform()->ram_alloc());
/*
* We use an extra portion of RAM for the VM state,
* so we can map it non-cached to core instead of normal, cached RAM.
* In future, when core only maps memory on demand, this extra allocator,
* can be eliminated.
*/
static Synchronized_range_allocator<Allocator_avl> vm_alloc(0);
vm_alloc.add_range(Trustzone::VM_STATE_BASE, Trustzone::VM_STATE_SIZE);
static Vm_root vm_root(ep, sh, &vm_alloc);
static Local_service vm_ls(Vm_session::service_name(), &vm_root);
ls->insert(&vm_ls);
}

13
base-hw/src/core/vea9x4/trustzone/platform_support.cc
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@ -11,6 +11,8 @@
* under the terms of the GNU General Public License version 2.
*/
#include <drivers/trustzone.h>
/* core includes */
#include <board.h>
#include <cpu.h>
@ -60,7 +62,7 @@ Native_region * Platform::_ram_regions(unsigned const i)
{
static Native_region _regions[] =
{
{ Board::RAM_3_BASE, Board::RAM_3_SIZE }
{ Trustzone::SECURE_RAM_BASE, Trustzone::SECURE_RAM_SIZE },
};
return i < sizeof(_regions)/sizeof(_regions[0]) ? &_regions[i] : 0;
}
@ -72,9 +74,7 @@ Native_region * Platform::_mmio_regions(unsigned const i)
{
{ Board::MMIO_0_BASE, Board::MMIO_0_SIZE },
{ Board::MMIO_1_BASE, Board::MMIO_1_SIZE },
{ 0x60000000, 0x40000000 },
{ Board::TZASC_MMIO_BASE, Board::TZASC_MMIO_SIZE },
{ Board::TZPC_MMIO_BASE, Board::TZPC_MMIO_SIZE },
{ Trustzone::NONSECURE_RAM_BASE, Trustzone::NONSECURE_RAM_SIZE },
};
return i < sizeof(_regions)/sizeof(_regions[0]) ? &_regions[i] : 0;
}
@ -89,7 +89,10 @@ Native_region * Platform::_core_only_mmio_regions(unsigned const i)
Board::CORTEX_A9_PRIVATE_MEM_SIZE },
/* Core UART */
{ Board::PL011_0_MMIO_BASE, Board::PL011_0_MMIO_SIZE }
{ Board::PL011_0_MMIO_BASE, Board::PL011_0_MMIO_SIZE },
/* vm state memory */
{ Trustzone::VM_STATE_BASE, Trustzone::VM_STATE_SIZE },
};
return i < sizeof(_regions)/sizeof(_regions[0]) ? &_regions[i] : 0;
}

51
base-hw/src/core/vea9x4/trustzone/tlb.h Normal file
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@ -0,0 +1,51 @@
/*
* \brief Translation lookaside buffer
* \author Martin Stein
* \author Stefan Kalkowski
* \date 2012-04-23
*/
/*
* Copyright (C) 2012-2013 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 _VEA9X4__TLB_H_
#define _VEA9X4__TLB_H_
#include <drivers/trustzone.h>
/* core includes */
#include <board.h>
#include <tlb/arm_v7.h>
namespace Genode
{
struct Page_flags : Arm::Page_flags { };
class Tlb : public Arm_v7::Section_table { };
/**
* Translation lookaside buffer of core
*/
class Core_tlb : public Tlb
{
public:
/**
* Constructor - ensures that core never gets a pagefault
*/
Core_tlb()
{
map_core_area(Trustzone::SECURE_RAM_BASE, Trustzone::SECURE_RAM_SIZE, 0);
map_core_area(Board::MMIO_0_BASE, Board::MMIO_0_SIZE, 1);
map_core_area(Board::MMIO_1_BASE, Board::MMIO_1_SIZE, 1);
map_core_area(Trustzone::VM_STATE_BASE, Trustzone::VM_STATE_SIZE, 1);
}
};
}
#endif /* _VEA9X4__TLB_H_ */