30 lines
794 B
C
30 lines
794 B
C
#ifndef _KERNEL_PLATFORM_X86_I386_VMM_CONSTS_H
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#define _KERNEL_PLATFORM_X86_I386_VMM_CONSTS_H
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static inline int vm_page_mask()
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{
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return 0xfff;
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}
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#define VMM_LV0_ENTITY_COUNT (1024)
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#define VMM_LV1_ENTITY_COUNT (1024)
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#define VMM_PAGE_SIZE (4096)
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#define VMM_OFFSET_IN_DIRECTORY(a) (((a) >> 22) & 0x3ff)
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#define VMM_OFFSET_IN_TABLE(a) (((a) >> 12) & 0x3ff)
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#define VMM_OFFSET_IN_PAGE(a) ((a)&0xfff)
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#define TABLE_START(vaddr) ((vaddr >> 22) << 22)
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#define PAGE_START(vaddr) ((vaddr >> 12) << 12)
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#define FRAME(addr) (addr / VMM_PAGE_SIZE)
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#define PTABLE_TOP_KERNEL_OFFSET 768
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#define PTABLE_LV_TOP (1)
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#define PTABLE_LV0_VADDR_OFFSET (12)
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#define PTABLE_LV1_VADDR_OFFSET (22)
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#define USER_HIGH 0xbfffffff
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#define KERNEL_BASE 0xc0000000
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#endif //_KERNEL_PLATFORM_X86_I386_VMM_CONSTS_H
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