48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
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#ifndef _PAGETABLE_H
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#define _PAGETABLE_H 1
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#include <stdint.h>
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#include <machine/vm.h>
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#include "vm.h"
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/* Mapping flags. */
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#define PTF_WRITE I386_VM_WRITE
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#define PTF_READ I386_VM_READ
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#define PTF_PRESENT I386_VM_PRESENT
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#define PTF_USER I386_VM_USER
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#define PTF_GLOBAL I386_VM_GLOBAL
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#define PTF_NOCACHE (I386_VM_PWT | I386_VM_PCD)
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#define ARCH_VM_DIR_ENTRIES I386_VM_DIR_ENTRIES
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#define ARCH_BIG_PAGE_SIZE I386_BIG_PAGE_SIZE
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#define ARCH_VM_ADDR_MASK I386_VM_ADDR_MASK
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#define ARCH_VM_PAGE_PRESENT I386_VM_PRESENT
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#define ARCH_VM_PDE_MASK I386_VM_PDE_MASK
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#define ARCH_VM_PDE_PRESENT I386_VM_PRESENT
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#define ARCH_VM_PTE_PRESENT I386_VM_PRESENT
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#define ARCH_VM_PTE_USER I386_VM_USER
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#define ARCH_VM_PTE_RW I386_VM_WRITE
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#define ARCH_PAGEDIR_SIZE I386_PAGE_SIZE
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#define ARCH_VM_BIGPAGE I386_VM_BIGPAGE
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#define ARCH_VM_PT_ENTRIES I386_VM_PT_ENTRIES
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/* For arch-specific PT routines to check if no bits outside
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* the regular flags are set.
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*/
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#define PTF_ALLFLAGS (PTF_READ|PTF_WRITE|PTF_PRESENT|PTF_USER|PTF_GLOBAL|PTF_NOCACHE)
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#define PFERR_NOPAGE(e) (!((e) & I386_VM_PFE_P))
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#define PFERR_PROT(e) (((e) & I386_VM_PFE_P))
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#define PFERR_WRITE(e) ((e) & I386_VM_PFE_W)
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#define PFERR_READ(e) (!((e) & I386_VM_PFE_W))
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#define VM_PAGE_SIZE I386_PAGE_SIZE
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/* virtual address -> pde, pte macros */
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#define ARCH_VM_PTE(v) I386_VM_PTE(v)
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#define ARCH_VM_PDE(v) I386_VM_PDE(v)
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#endif
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