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25 lines
766 B
C
25 lines
766 B
C
/* Copyright (C) 2021,2022 fef <owo@fef.moe>. All rights reserved. */
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#pragma once
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#ifndef _ARCH_VMPARAM_H_
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#error "This file is not meant to be included directly, use <arch/vmparam.h>"
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#endif
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/** @brief Userland memory region */
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#define USER_OFFSET 0x00000000
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#define USER_LENGTH 0x80000000
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/** @brief Direct (contiguous) mapping of physical memory, also used as heap */
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#define DMAP_OFFSET 0x80000000
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/* this gives us ~ 1.7 GB of effectively usable RAM for *everything*, much wow */
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#define DMAP_LENGTH 0x70000000
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/** @brief Kernel image (code + data) */
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#define KERN_OFFSET 0xf0000000
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#define KERN_LENGTH 0x0f000000
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#define KERNBASE KERN_OFFSET
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/** @brief Recursive Page Directory map */
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#define X86_PD_OFFSET 0xffc00000
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#define X86_PD_LENGTH 0x00400000
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