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-rw-r--r--Documentation/arm64/memory.txt29
1 files changed, 27 insertions, 2 deletions
diff --git a/Documentation/arm64/memory.txt b/Documentation/arm64/memory.txt
index 78a377124ef0..5e054bfe4dde 100644
--- a/Documentation/arm64/memory.txt
+++ b/Documentation/arm64/memory.txt
@@ -21,7 +21,7 @@ The swapper_pgd_dir address is written to TTBR1 and never written to
TTBR0.
-AArch64 Linux memory layout:
+AArch64 Linux memory layout with 4KB pages:
Start End Size Use
-----------------------------------------------------------------------
@@ -39,13 +39,38 @@ ffffffbffbc00000 ffffffbffbdfffff 2MB earlyprintk device
ffffffbffbe00000 ffffffbffbe0ffff 64KB PCI I/O space
-ffffffbbffff0000 ffffffbcffffffff ~2MB [guard]
+ffffffbffbe10000 ffffffbcffffffff ~2MB [guard]
ffffffbffc000000 ffffffbfffffffff 64MB modules
ffffffc000000000 ffffffffffffffff 256GB kernel logical memory map
+AArch64 Linux memory layout with 64KB pages:
+
+Start End Size Use
+-----------------------------------------------------------------------
+0000000000000000 000003ffffffffff 4TB user
+
+fffffc0000000000 fffffdfbfffeffff ~2TB vmalloc
+
+fffffdfbffff0000 fffffdfbffffffff 64KB [guard page]
+
+fffffdfc00000000 fffffdfdffffffff 8GB vmemmap
+
+fffffdfe00000000 fffffdfffbbfffff ~8GB [guard, future vmmemap]
+
+fffffdfffbc00000 fffffdfffbdfffff 2MB earlyprintk device
+
+fffffdfffbe00000 fffffdfffbe0ffff 64KB PCI I/O space
+
+fffffdfffbe10000 fffffdfffbffffff ~2MB [guard]
+
+fffffdfffc000000 fffffdffffffffff 64MB modules
+
+fffffe0000000000 ffffffffffffffff 2TB kernel logical memory map
+
+
Translation table lookup with 4KB pages:
+--------+--------+--------+--------+--------+--------+--------+--------+