Re: [v1 PATCH 2/2] Add Documentation regarding the ima-kexec-buffer node in the chosen node documentation
From: Rob Herring <robh@kernel.org>
Date: 2020-06-17 20:43:30
Also in:
linux-arm-kernel, linux-devicetree, linux-integrity, linuxppc-dev, lkml
On Sun, Jun 07, 2020 at 04:33:23PM -0700, Prakhar Srivastava wrote:
Add Documentation regarding the ima-kexec-buffer node in the chosen node documentation
Run 'git log --oneline Documentation/devicetree/bindings/chosen.txt' and write $subject using the dominate format used. For the commit message, answer why you need the change, not what the change is. I can read the diff for that.
Signed-off-by: Prakhar Srivastava <redacted> --- Documentation/devicetree/bindings/chosen.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
This file has moved to a schema here[1]. You need to update it.
quoted hunk ↗ jump to hunk
diff --git a/Documentation/devicetree/bindings/chosen.txt b/Documentation/devicetree/bindings/chosen.txt index 45e79172a646..a15f70c007ef 100644 --- a/Documentation/devicetree/bindings/chosen.txt +++ b/Documentation/devicetree/bindings/chosen.txt@@ -135,3 +135,20 @@ e.g. linux,initrd-end = <0x82800000>; }; }; + +linux,ima-kexec-buffer +---------------------- + +This property(currently used by powerpc, arm64) holds the memory range, +the address and the size, of the IMA measurement logs that are being carried +over to the kexec session.
What's IMA?
+
+/ {
+ chosen {
+ linux,ima-kexec-buffer = <0x9 0x82000000 0x0 0x00008000>;
+ };
+};
+
+This porperty does not represent real hardware, but the memory allocated fortypo
+carrying the IMA measurement logs. The address and the suze are expressed in
typo
+#address-cells and #size-cells, respectively of the root node. -- 2.25.1
[1] https://github.com/devicetree-org/dt-schema/blob/master/schemas/chosen.yaml