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| author | Robert Morris <rtm@csail.mit.edu> | 2019-09-17 06:07:58 -0400 |
|---|---|---|
| committer | Robert Morris <rtm@csail.mit.edu> | 2019-09-17 06:07:58 -0400 |
| commit | 2df42355f7bf63b7c4344094955330048b5090f6 (patch) | |
| tree | 563e25f0eb66a0dfaefa926eaa941ff0b7cf4f6a /kernel/riscv.h | |
| parent | 036b5edf12fccc06a11287ad58565f253ab2eef6 (diff) | |
| download | xv6-labs-2df42355f7bf63b7c4344094955330048b5090f6.tar.gz xv6-labs-2df42355f7bf63b7c4344094955330048b5090f6.tar.bz2 xv6-labs-2df42355f7bf63b7c4344094955330048b5090f6.zip | |
all of PTE_FLAGS
Diffstat (limited to 'kernel/riscv.h')
| -rw-r--r-- | kernel/riscv.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/riscv.h b/kernel/riscv.h index 9df3cc0..f46ba59 100644 --- a/kernel/riscv.h +++ b/kernel/riscv.h @@ -338,7 +338,7 @@ sfence_vma() #define PTE2PA(pte) (((pte) >> 10) << 12) -#define PTE_FLAGS(pte) ((pte) & (PTE_V|PTE_R|PTE_W|PTE_X|PTE_U)) +#define PTE_FLAGS(pte) ((pte) & 0x3FF) // extract the three 9-bit page table indices from a virtual address. #define PXMASK 0x1FF // 9 bits |