55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
/******************************************************************************
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
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This file is part of Sortix.
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Sortix is free software: you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version.
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Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with Sortix. If not, see <http://www.gnu.org/licenses/>.
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memorymanagement.h
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Handles memory for the x64 architecture.
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******************************************************************************/
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#ifndef SORTIX_X64_MEMORYMANAGEMENT_H
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#define SORTIX_X64_MEMORYMANAGEMENT_H
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namespace Sortix
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{
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namespace Memory
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{
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const size_t TOPPMLLEVEL = 2;
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const size_t ENTRIES = 4096UL / sizeof(addr_t);
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const size_t TRANSBITS = 10;
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PML* const PMLS[TOPPMLLEVEL + 1] =
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{
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(PML* const) 0x0,
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(PML* const) 0xFFC00000UL,
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(PML* const) 0xFFBFF000UL,
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};
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PML* const FORKPML = (PML* const) 0xFF800000UL;
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}
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namespace Page
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{
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addr_t* const STACK = (addr_t* const) 0xFF400000UL;
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const size_t MAXSTACKSIZE = (4UL*1024UL*1024UL);
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const size_t MAXSTACKLENGTH = MAXSTACKSIZE / sizeof(addr_t);
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}
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}
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#endif
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