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| author | Richard Qin <richard.qin.x@gmail.com> | 2026-01-03 02:19:57 +0800 |
|---|---|---|
| committer | Richard Qin <richard.qin.x@gmail.com> | 2026-01-03 02:19:57 +0800 |
| commit | 210025560c80b48af4875af199f183ad709e3bf0 (patch) | |
| tree | eb11aeb7b641187f207e3b572c5184cf3526b463 /include/kernel/riscv.h | |
| parent | bde87490d61135dcaa94d9b1489ff6c39876d169 (diff) | |
| parent | 10614e04929a6d109a5e90524e446b637aaf0c13 (diff) | |
| download | lume-210025560c80b48af4875af199f183ad709e3bf0.tar.gz lume-210025560c80b48af4875af199f183ad709e3bf0.tar.xz | |
Merge pull request #4 from Richard-Qin-001/dev/shell
Rebuilt the system's underlying structure; it is now stable enough to merge.
The system now supports a read-only file system and has a simple shell implemented.
Diffstat (limited to 'include/kernel/riscv.h')
| -rw-r--r-- | include/kernel/riscv.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/kernel/riscv.h b/include/kernel/riscv.h index 4b3d323..0c586a9 100644 --- a/include/kernel/riscv.h +++ b/include/kernel/riscv.h @@ -79,6 +79,7 @@ w_sip(uint64 x) // Supervisor Interrupt Enable #define SIE_SEIE (1L << 9) // external #define SIE_STIE (1L << 5) // timer +#define SIE_SSIE (1L << 1) // software static inline uint64 r_sie() { @@ -375,7 +376,8 @@ typedef uint64 *pagetable_t; // 512 PTEs #define PTE_X (1L << 3) #define PTE_U (1L << 4) // user can access - +// COW Flag (PTE bit 8) +#define PTE_COW (1L << 8) #if defined(LAB_MMAP) || defined(LAB_PGTBL) || defined(LAB_COW) #define PTE_LEAF(pte) (((pte) & PTE_R) | ((pte) & PTE_W) | ((pte) & PTE_X)) |