42db1e112b
* introduces central memory map for core/kernel * on 32-bit platforms the kernel/core starts at 0x80000000 * on 64-bit platforms the kernel/core starts at 0xffffffc000000000 * mark kernel/core mappings as global ones (tagged TLB) * move the exception vector to begin of core's binary, thereby bootstrap knows from where to map it appropriately * do not map boot modules into core anymore * constrain core's virtual heap memory area * differentiate in between user's and core's main thread's UTCB, which now resides inside the kernel segment Ref #2091
63 lines
1.3 KiB
C++
63 lines
1.3 KiB
C++
/*
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* \brief Common kernel initialization
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* \author Martin Stein
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* \author Stefan Kalkowski
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* \date 2015-12-20
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*/
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/*
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* Copyright (C) 2015-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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/* core includes */
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#include <kernel/pd.h>
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#include <kernel/kernel.h>
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#include <platform_pd.h>
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#include <pic.h>
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#include <board.h>
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#include <platform_thread.h>
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/* base includes */
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#include <base/internal/unmanaged_singleton.h>
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using namespace Kernel;
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static_assert(sizeof(Genode::sizet_arithm_t) >= 2 * sizeof(size_t),
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"Bad result type for size_t arithmetics.");
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Pd * Kernel::core_pd() {
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return &unmanaged_singleton<Genode::Core_platform_pd>()->kernel_pd(); }
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Pic * Kernel::pic() { return unmanaged_singleton<Pic>(); }
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extern "C" void _start();
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/**
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* Setup kernel environment
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*/
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extern "C" void _start()
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{
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static volatile bool initialized = false;
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if (Cpu::executing_id()) while (!initialized) ;
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else {
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Genode::log("");
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Genode::log("kernel initialized");
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}
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/* initialize cpu pool */
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cpu_pool();
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/* initialize current cpu */
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cpu_pool()->cpu(Cpu::executing_id())->init(*pic());
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Core_thread::singleton();
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if (!Cpu::executing_id()) initialized = true;
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kernel();
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}
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