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-rw-r--r--Documentation/arm64/booting.txt7
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/arm64/booting.txt b/Documentation/arm64/booting.txt
index 369a4f48eb0d..701d39d3171a 100644
--- a/Documentation/arm64/booting.txt
+++ b/Documentation/arm64/booting.txt
@@ -104,7 +104,12 @@ Header notes:
- The flags field (introduced in v3.17) is a little-endian 64-bit field
composed as follows:
Bit 0: Kernel endianness. 1 if BE, 0 if LE.
- Bits 1-63: Reserved.
+ Bit 1-2: Kernel Page size.
+ 0 - Unspecified.
+ 1 - 4K
+ 2 - 16K
+ 3 - 64K
+ Bits 3-63: Reserved.
- When image_size is zero, a bootloader should attempt to keep as much
memory as possible free for use by the kernel immediately after the