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Subject[PATCH] Fix 56-bit addresses in Documentation/x86/x86_64/mm.txt
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This fixes a PT typo, and the following 56-bit address-space
addresses:
* the hole extends from 0100000000000000 to feffffffffffffff
* the KASAN shadow memory area stops at fffffbffffffffff (see kasan.h)

Signed-off-by: Stephen Kitt <steve@sk2.org>
---
Documentation/x86/x86_64/mm.txt | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/x86/x86_64/mm.txt b/Documentation/x86/x86_64/mm.txt
index 804f9426ed17..6cbe652d7a49 100644
--- a/Documentation/x86/x86_64/mm.txt
+++ b/Documentation/x86/x86_64/mm.txt
@@ -72,7 +72,7 @@ Complete virtual memory map with 5-level page tables
Notes:

- With 56-bit addresses, user-space memory gets expanded by a factor of 512x,
- from 0.125 PB to 64 PB. All kernel mappings shift down to the -64 PT starting
+ from 0.125 PB to 64 PB. All kernel mappings shift down to the -64 PB starting
offset and many of the regions expand to support the much larger physical
memory supported.

@@ -83,7 +83,7 @@ Notes:
0000000000000000 | 0 | 00ffffffffffffff | 64 PB | user-space virtual memory, different per mm
__________________|____________|__________________|_________|___________________________________________________________
| | | |
- 0000800000000000 | +64 PB | ffff7fffffffffff | ~16K PB | ... huge, still almost 64 bits wide hole of non-canonical
+ 0100000000000000 | +64 PB | feffffffffffffff | ~16K PB | ... huge, still almost 64 bits wide hole of non-canonical
| | | | virtual memory addresses up to the -64 PB
| | | | starting offset of kernel mappings.
__________________|____________|__________________|_________|___________________________________________________________
@@ -99,7 +99,7 @@ ____________________________________________________________|___________________
ffd2000000000000 | -11.5 PB | ffd3ffffffffffff | 0.5 PB | ... unused hole
ffd4000000000000 | -11 PB | ffd5ffffffffffff | 0.5 PB | virtual memory map (vmemmap_base)
ffd6000000000000 | -10.5 PB | ffdeffffffffffff | 2.25 PB | ... unused hole
- ffdf000000000000 | -8.25 PB | fffffdffffffffff | ~8 PB | KASAN shadow memory
+ ffdf000000000000 | -8.25 PB | fffffbffffffffff | ~8 PB | KASAN shadow memory
__________________|____________|__________________|_________|____________________________________________________________
|
| Identical layout to the 47-bit one from here on:
--
2.11.0
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