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Date:   Tue, 22 Dec 2020 21:57:25 -0300
From:   Thiago Jung Bauermann <>
To:     Lakshmi Ramasubramanian <>
Subject: Re: [PATCH v13 3/6] kexec: Use fdt_appendprop_addrrange() to add
 ima buffer to FDT

Lakshmi Ramasubramanian <> writes:

> fdt_appendprop_addrrange() function adds a property, with the given name,
> to the device tree at the given node offset, and also sets the address
> and size of the property. This function should be used to add
> "linux,ima-kexec-buffer" property to the device tree and set the address
> and size of the IMA measurement buffer, instead of using custom function.
> Use fdt_appendprop_addrrange() to add  "linux,ima-kexec-buffer" property
> to the device tree. This property holds the address and size of
> the IMA measurement buffer that needs to be passed from the current
> kernel to the next kernel across kexec system call.
> Remove custom code that is used in setup_ima_buffer() to add
> "linux,ima-kexec-buffer" property to the device tree.
> Co-developed-by: Prakhar Srivastava <>
> Signed-off-by: Prakhar Srivastava <>
> Signed-off-by: Lakshmi Ramasubramanian <>
> ---
>  drivers/of/kexec.c | 57 ++++------------------------------------------
>  1 file changed, 5 insertions(+), 52 deletions(-)

This is a nice improvement, thanks.

Reviewed-by: Thiago Jung Bauermann <>

Thiago Jung Bauermann
IBM Linux Technology Center

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