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| author | Ian Moffett <ian@osmora.org> | 2024-01-12 14:13:19 -0500 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2024-01-12 14:13:19 -0500 |
| commit | 3438080f00d3c82b8a9776bcf725ebbbce677b35 (patch) | |
| tree | 55a3e825c408289018cc7d20cdcf835a80084b3a /sys | |
| parent | eec633d16fe2ce6e740c1848209ebb8b6d9b60bd (diff) | |
kernel/amd64: pmap: Document PTE flags further
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/amd64/amd64/pmap.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/arch/amd64/amd64/pmap.c b/sys/arch/amd64/amd64/pmap.c index 3cae745..cc9c2e8 100644 --- a/sys/arch/amd64/amd64/pmap.c +++ b/sys/arch/amd64/amd64/pmap.c @@ -33,6 +33,11 @@ #include <machine/asm/tlb.h> #include <assert.h> +/* + * Page-Table Entry (PTE) flags + * + * See Intel SDM Vol 3A, Section 4.5, Table 4-19 + */ #define PTE_ADDR_MASK 0x000FFFFFFFFFF000 #define PTE_P __BIT(0) /* Present */ #define PTE_RW __BIT(1) /* Writable */ |