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sortix--sortix/sortix/x86-family/memorymanagement.h

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/******************************************************************************
COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
This file is part of Sortix.
Sortix is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along
with Sortix. If not, see <http://www.gnu.org/licenses/>.
memorymanagement.h
Handles memory for the x86 family of architectures.
******************************************************************************/
#ifndef SORTIX_X86_FAMILY_MEMORYMANAGEMENT_H
#define SORTIX_X86_FAMILY_MEMORYMANAGEMENT_H
namespace Sortix
{
struct PML
{
addr_t entry[4096 / sizeof(addr_t)];
};
namespace Memory
{
const addr_t PML_PRESENT = (1<<0);
const addr_t PML_WRITABLE = (1<<1);
const addr_t PML_USERSPACE = (1<<2);
const addr_t PML_AVAILABLE1 = (1<<9);
const addr_t PML_AVAILABLE2 = (1<<10);
const addr_t PML_AVAILABLE3 = (1<<11);
const addr_t PML_FORK = PML_AVAILABLE1;
const addr_t PML_FLAGS = (0xFFFUL); // Bits used for the flags.
const addr_t PML_ADDRESS = (~0xFFFUL); // Bits used for the address.
}
}
#ifdef PLATFORM_X86
#include "../x86/memorymanagement.h"
#endif
#ifdef PLATFORM_X64
#include "../x64/memorymanagement.h"
#endif
#endif