63 lines
1.3 KiB
C++
63 lines
1.3 KiB
C++
/*
|
|
* \brief Common kernel initialization
|
|
* \author Martin Stein
|
|
* \author Stefan Kalkowski
|
|
* \date 2015-12-20
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2015-2017 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.
|
|
*/
|
|
|
|
/* core includes */
|
|
#include <kernel/pd.h>
|
|
#include <kernel/kernel.h>
|
|
#include <platform_pd.h>
|
|
#include <pic.h>
|
|
#include <board.h>
|
|
#include <platform_thread.h>
|
|
|
|
/* base includes */
|
|
#include <base/internal/unmanaged_singleton.h>
|
|
|
|
using namespace Kernel;
|
|
|
|
static_assert(sizeof(Genode::sizet_arithm_t) >= 2 * sizeof(size_t),
|
|
"Bad result type for size_t arithmetics.");
|
|
|
|
Pd * Kernel::core_pd() {
|
|
return &unmanaged_singleton<Genode::Core_platform_pd>()->kernel_pd(); }
|
|
|
|
|
|
Pic * Kernel::pic() { return unmanaged_singleton<Pic>(); }
|
|
|
|
extern "C" void kernel_init();
|
|
|
|
/**
|
|
* Setup kernel environment
|
|
*/
|
|
extern "C" void kernel_init()
|
|
{
|
|
static volatile bool initialized = false;
|
|
if (Cpu::executing_id()) while (!initialized) ;
|
|
else {
|
|
Genode::log("");
|
|
Genode::log("kernel initialized");
|
|
}
|
|
|
|
/* initialize cpu pool */
|
|
cpu_pool();
|
|
|
|
/* initialize current cpu */
|
|
cpu_pool()->cpu(Cpu::executing_id())->init(*pic());
|
|
|
|
Core_thread::singleton();
|
|
|
|
if (!Cpu::executing_id()) initialized = true;
|
|
|
|
kernel();
|
|
}
|