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[metal] Minor corrections to constants for paging structures (#751)

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tkchia 2023-02-25 03:49:08 +08:00 • committed by GitHub
parent 5923d483a4
commit ae365928c5
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1 changed files with 4 additions and 5 deletions
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9
libc/runtime/pc.internal.h
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@ -141,8 +141,8 @@
│ Page-level Cache Disable - PCD┐││││
│ Set if has been read - Accessed┐│││││
│ Set if has been written - Dirty┐││││││
│ IsPage (if PDPTE/PDE) or PAT (if PT)┐│││││││
│ (If this maps 2MB/1GB page and CR4.PGE) Global┐││││││││
│ IsPage 2MB/1GB (if PDPTE/PDE) or PAT (if PT)┐│││││││
│ (If this maps page and CR4.PGE) Global┐││││││││
│ (If IsPage 2MB/1GB, see Intel V3A § 11.12) PAT │││││││││
│ │ │││││││││
│ ┌─────────────────────────────────────┤ │││││││││
@ -159,9 +159,8 @@
#define PAGE_V /* */ 0b000000000001
#define PAGE_RW /* */ 0b000000000010
#define PAGE_U /* */ 0b000000000100
#define PAGE_4KB /* */ 0b000010000000
#define PAGE_2MB /* */ 0b000110000000
#define PAGE_1GB /* */ 0b000110000000
#define PAGE_PS /* */ 0b000010000000
#define PAGE_G /* */ 0b000100000000
#define PAGE_IGN1 /* */ 0b111000000000
#define PAGE_RSRV /* blinkenlights/libc reservation */ 0b001000000000
#define PAGE_GROD /* blinkenlights MAP_GROWSDOWN */ 0b010000000000