From ebde8820a04dd73a09f50ba84b8cf8ec3773d6ba Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Fri, 6 Oct 2017 06:12:41 +0200 Subject: dts: update to v4.14-rc1 Signed-off-by: Sascha Hauer --- dts/Bindings/chosen.txt | 26 ++++++++++++++++++++++++-- 1 file changed, 24 insertions(+), 2 deletions(-) (limited to 'dts/Bindings/chosen.txt') diff --git a/dts/Bindings/chosen.txt b/dts/Bindings/chosen.txt index dee3f5d9df..e3b13ea7d2 100644 --- a/dts/Bindings/chosen.txt +++ b/dts/Bindings/chosen.txt @@ -5,9 +5,31 @@ The chosen node does not represent a real device, but serves as a place for passing data between firmware and the operating system, like boot arguments. Data in the chosen node does not represent the hardware. +The following properties are recognized: -stdout-path property --------------------- + +kaslr-seed +----------- + +This property is used when booting with CONFIG_RANDOMIZE_BASE as the +entropy used to randomize the kernel image base address location. Since +it is used directly, this value is intended only for KASLR, and should +not be used for other purposes (as it may leak information about KASLR +offsets). It is parsed as a u64 value, e.g. + +/ { + chosen { + kaslr-seed = <0xfeedbeef 0xc0def00d>; + }; +}; + +Note that if this property is set from UEFI (or a bootloader in EFI +mode) when EFI_RNG_PROTOCOL is supported, it will be overwritten by +the Linux EFI stub (which will populate the property itself, using +EFI_RNG_PROTOCOL). + +stdout-path +----------- Device trees may specify the device to be used for boot console output with a stdout-path property under /chosen, as described in the Devicetree -- cgit v1.2.3