58 lines
1.6 KiB
C++
58 lines
1.6 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 x86 family of architectures.
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******************************************************************************/
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#ifndef SORTIX_X86_FAMILY_MEMORYMANAGEMENT_H
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#define SORTIX_X86_FAMILY_MEMORYMANAGEMENT_H
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namespace Sortix
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{
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struct PML
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{
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addr_t entry[4096 / sizeof(addr_t)];
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};
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namespace Memory
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{
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const addr_t PML_PRESENT = (1<<0);
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const addr_t PML_WRITABLE = (1<<1);
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const addr_t PML_USERSPACE = (1<<2);
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const addr_t PML_AVAILABLE1 = (1<<9);
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const addr_t PML_AVAILABLE2 = (1<<10);
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const addr_t PML_AVAILABLE3 = (1<<11);
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const addr_t PML_FORK = PML_AVAILABLE1;
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const addr_t PML_FLAGS = (0xFFFUL); // Bits used for the flags.
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const addr_t PML_ADDRESS = (~0xFFFUL); // Bits used for the address.
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}
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}
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#ifdef PLATFORM_X86
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#include "../x86/memorymanagement.h"
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#endif
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#ifdef PLATFORM_X64
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#include "../x64/memorymanagement.h"
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#endif
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#endif
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