diff options
Diffstat (limited to 'i386/intel/pmap.h')
| -rw-r--r-- | i386/intel/pmap.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/i386/intel/pmap.h b/i386/intel/pmap.h index 1c6a0d30..34c7cc89 100644 --- a/i386/intel/pmap.h +++ b/i386/intel/pmap.h @@ -74,16 +74,14 @@ typedef phys_addr_t pt_entry_t; #ifdef __x86_64__ #define L4SHIFT 39 /* L4 shift */ #define L4MASK 0x1ff /* mask for L4 index */ -#endif -#define PDPSHIFT 30 /* page directory pointer */ -#ifdef __x86_64__ -/* Enough for 8GiB addressing space. */ -#define PDPNUM 8 /* number of page directory pointers */ +#define PDPNUM_KERNEL (((VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS) >> PDPSHIFT) + 1) +#define PDPNUM_USER (((VM_MAX_USER_ADDRESS - VM_MIN_USER_ADDRESS) >> PDPSHIFT) + 1) #define PDPMASK 0x1ff /* mask for page directory pointer index */ #else #define PDPNUM 4 /* number of page directory pointers */ #define PDPMASK 3 /* mask for page directory pointer index */ #endif +#define PDPSHIFT 30 /* page directory pointer */ #define PDESHIFT 21 /* page descriptor shift */ #define PDEMASK 0x1ff /* mask for page descriptor index */ #define PTESHIFT 12 /* page table shift */ |