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authorAndre Mueller <am@emlix.com>2022-06-21 11:16:51 +0300
committerWill Deacon <will@kernel.org>2022-06-23 20:35:40 +0300
commit5bed6a93920dea85b1828cbe3aa3e333ed663ea3 (patch)
treefd9006d09b12338543777970cf395a58ae7bf31f /Documentation/arm64/memory.rst
parenta111daf0c53ae91e71fd2bfe7497862d14132e3e (diff)
downloadlinux-5bed6a93920dea85b1828cbe3aa3e333ed663ea3.tar.xz
Documentation/arm64: update memory layout table.
Commit b89ddf4cca43("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: Andre Mueller <am@emlix.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20220621081651.61755-1-am@emlix.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/arm64/memory.rst')
-rw-r--r--Documentation/arm64/memory.rst10
1 files changed, 4 insertions, 6 deletions
diff --git a/Documentation/arm64/memory.rst b/Documentation/arm64/memory.rst
index 901cd094f4ec..2a641ba7be3b 100644
--- a/Documentation/arm64/memory.rst
+++ b/Documentation/arm64/memory.rst
@@ -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