Commit 5bed6a93 authored by Andre Mueller's avatar Andre Mueller Committed by Will Deacon
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Documentation/arm64: update memory layout table. 



Commit b89ddf4c("arm64/bpf: Remove 128MB limit for BPF JIT programs")
removes the bpf jit region from the memory layout of the Aarch64
architecture. However, it forgets to update the documentation
accordingly.

- Remove the bpf jit region.
- Fix the Start and End addresses of the modules region.
- Fix the Start address of the vmalloc region.

Signed-off-by: default avatarAndre Mueller <am@emlix.com>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220621081651.61755-1-am@emlix.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent a111daf0

Documentation/arm64/memory.rst

+4 −6
Original line number Diff line number Diff line
@@ -33,9 +33,8 @@ AArch64 Linux memory layout with 4KB pages + 4 levels (48-bit):: 
  0000000000000000	0000ffffffffffff	 256TB		user

  ffff000000000000	ffff7fffffffffff	 128TB		kernel logical memory map

 [ffff600000000000	ffff7fffffffffff]	  32TB		[kasan shadow region]

  ffff800000000000	ffff800007ffffff	 128MB		bpf jit region

  ffff800008000000	ffff80000fffffff	 128MB		modules

  ffff800010000000	fffffbffefffffff	 124TB		vmalloc

  ffff800000000000	ffff800007ffffff	 128MB		modules

  ffff800008000000	fffffbffefffffff	 124TB		vmalloc

  fffffbfff0000000	fffffbfffdffffff	 224MB		fixed mappings (top down)

  fffffbfffe000000	fffffbfffe7fffff	   8MB		[guard region]

  fffffbfffe800000	fffffbffff7fffff	  16MB		PCI I/O space
@@ -51,9 +50,8 @@ AArch64 Linux memory layout with 64KB pages + 3 levels (52-bit with HW support): 
  0000000000000000	000fffffffffffff	   4PB		user

  fff0000000000000	ffff7fffffffffff	  ~4PB		kernel logical memory map

 [fffd800000000000	ffff7fffffffffff]	 512TB		[kasan shadow region]

  ffff800000000000	ffff800007ffffff	 128MB		bpf jit region

  ffff800008000000	ffff80000fffffff	 128MB		modules

  ffff800010000000	fffffbffefffffff	 124TB		vmalloc

  ffff800000000000	ffff800007ffffff	 128MB		modules

  ffff800008000000	fffffbffefffffff	 124TB		vmalloc

  fffffbfff0000000	fffffbfffdffffff	 224MB		fixed mappings (top down)

  fffffbfffe000000	fffffbfffe7fffff	   8MB		[guard region]

  fffffbfffe800000	fffffbffff7fffff	  16MB		PCI I/O space