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sortix--sortix/sortix/x86/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 x64 architecture.
******************************************************************************/
#ifndef SORTIX_X64_MEMORYMANAGEMENT_H
#define SORTIX_X64_MEMORYMANAGEMENT_H
namespace Sortix
{
namespace Memory
{
const size_t TOPPMLLEVEL = 2;
const size_t ENTRIES = 4096UL / sizeof(addr_t);
const size_t TRANSBITS = 10;
PML* const PMLS[TOPPMLLEVEL + 1] =
{
(PML* const) 0x0,
(PML* const) 0xFFC00000UL,
(PML* const) 0xFFBFF000UL,
};
PML* const FORKPML = (PML* const) 0xFF800000UL;
}
namespace Page
{
addr_t* const STACK = (addr_t* const) 0xFF400000UL;
const size_t MAXSTACKSIZE = (4UL*1024UL*1024UL);
const size_t MAXSTACKLENGTH = MAXSTACKSIZE / sizeof(addr_t);
}
}
#endif