Imbus/xv6-riscv-kernel
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PTE flag comments

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Imbus 2025-01-13 16:33:30 +01:00
parent 1d3036da7a
commit eb6dd2be2c
1 changed files with 10 additions and 0 deletions
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10
kernel/riscv.h
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@ -429,6 +429,16 @@ typedef u64 *pagetable_t; // 512 PTEs
/** /**
* Page Table Entry Flags * Page Table Entry Flags
*/ */
/** Valid */
#define PTE_V (1L << 0)
/** Readable */
#define PTE_R (1L << 1)
/** Writable */
#define PTE_W (1L << 2)
/** Executable */
#define PTE_X (1L << 3)
/** User-accessible */
#define PTE_U (1L << 4)
#define PTE_V (1L << 0) /** PTE Valid */ #define PTE_V (1L << 0) /** PTE Valid */
#define PTE_R (1L << 1) /** PTE Readable */ #define PTE_R (1L << 1) /** PTE Readable */