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sortix--sortix/kernel/x64/memorymanagement.h
2014-03-01 14:37:40 +01:00

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/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2014.
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/>.
x64/memorymanagement.h
Handles memory for the x64 architecture.
*******************************************************************************/
#ifndef SORTIX_X64_MEMORYMANAGEMENT_H
#define SORTIX_X64_MEMORYMANAGEMENT_H
namespace Sortix {
namespace Memory {
const size_t TOPPMLLEVEL = 4;
const size_t ENTRIES = 4096UL / sizeof(addr_t);
const size_t TRANSBITS = 9;
PML* const PMLS[TOPPMLLEVEL + 1] =
{
(PML* const) 0x0,
(PML* const) 0xFFFFFF8000000000UL,
(PML* const) 0xFFFFFF7FC0000000UL,
(PML* const) 0XFFFFFF7FBFE00000UL,
(PML* const) 0xFFFFFF7FBFDFF000UL,
};
PML* const FORKPML = (PML* const) 0xFFFFFF0000000000UL;
} // namespace Memory
} // namespace Sortix
namespace Sortix {
namespace Page {
addr_t* const STACK = (addr_t* const) 0xFFFFFE8000000000UL;
const size_t MAXSTACKSIZE = (512UL*1024UL*1024UL*1024UL);
const size_t MAXSTACKLENGTH = MAXSTACKSIZE / sizeof(addr_t);
} // namespace Page
} // namespace Sortix
#endif