On Mon, Aug 8, 2016 at 4:03 PM, John Stultz <john.stultz@xxxxxxxxxx> wrote:
> This patch reserves some memory in the DTS and sets up a
> pstore device tree node to enable pstore support on HiKey.
>
> Cc: Kees Cook <keescook@xxxxxxxxxxxx>
> Cc: Guodong Xu <guodong.xu@xxxxxxxxxx>
> Cc: Haojian Zhuang <haojian.zhuang@xxxxxxxxxx>
> Cc: Wei Xu <xuwei5@xxxxxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Mark Rutland <mark.rutland@xxxxxxx>
> Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
> Cc: Will Deacon <will.deacon@xxxxxxx>
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Cc: devicetree@xxxxxxxxxxxxxxx
> Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
> ---
> arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 17 ++++++++++++++++-
> 1 file changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
> index b2683e4..9140306 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
> +++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
> @@ -32,6 +32,7 @@
> * 0x05f0,1000 - 0x05f0,1fff: Reboot reason
> * 0x06df,f000 - 0x06df,ffff: Mailbox message data
> * 0x0740,f000 - 0x0740,ffff: MCU firmware section
> + * 0x21f0,0000 - 0x21ff,ffff: pstore/ramoops buffer
> * 0x3e00,0000 - 0x3fff,ffff: OP-TEE
> */
> memory@0 {
> @@ -40,7 +41,21 @@
> <0x00000000 0x05f00000 0x00000000 0x00001000>,
> <0x00000000 0x05f02000 0x00000000 0x00efd000>,
> <0x00000000 0x06e00000 0x00000000 0x0060f000>,
> - <0x00000000 0x07410000 0x00000000 0x36bf0000>;
> + <0x00000000 0x07410000 0x00000000 0x1aaf0000>,
> + <0x00000000 0x22000000 0x00000000 0x1c000000>;
> + };
> +
> + pstore: pstore@0x21f00000 {
> + no-map;
> + reg = <0x0 0x21f00000 0x0 0x00100000>; /* pstore buffer */
> + };
> +
> + ramoops {
> + compatible = "ramoops";
> + memory-region = <&pstore>;
> + record-size = <0x0 0x00020000>;
> + console-size = <0x0 0x00020000>;
> + ftrace-size = <0x0 0x00020000>;
> };
>
> reboot-mode-syscon@5f01000 {
Heh, sorry, we changed the pstore DT format out from under you. :)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=529182e204db083cb7bda832d1c5c6d9278ba1cb
But otherwise, sure!
-Kees
--
Kees Cook
Nexus Security
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