linux-kernel - Re: [PATCH v17 07/10] powerpc: Move arch independent ima kexec functions to drivers/of/kexec.c

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Date:   Thu, 11 Feb 2021 02:07:09 -0300
From:   Thiago Jung Bauermann <bauerman@...ux.ibm.com>
To:     Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>
Cc:     zohar@...ux.ibm.com, robh@...nel.org, takahiro.akashi@...aro.org,
        gregkh@...uxfoundation.org, will@...nel.org, joe@...ches.com,
        catalin.marinas@....com, mpe@...erman.id.au, james.morse@....com,
        sashal@...nel.org, benh@...nel.crashing.org, paulus@...ba.org,
        frowand.list@...il.com, vincenzo.frascino@....com,
        mark.rutland@....com, dmitry.kasatkin@...il.com, jmorris@...ei.org,
        serge@...lyn.com, pasha.tatashin@...een.com, allison@...utok.net,
        masahiroy@...nel.org, mbrugger@...e.com, hsinyi@...omium.org,
        tao.li@...o.com, christophe.leroy@....fr,
        prsriva@...ux.microsoft.com, balajib@...ux.microsoft.com,
        linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v17 07/10] powerpc: Move arch independent ima kexec
 functions to drivers/of/kexec.c


Lakshmi Ramasubramanian <nramas@...ux.microsoft.com> writes:

> The functions defined in "arch/powerpc/kexec/ima.c" handle setting up
> and freeing the resources required to carry over the IMA measurement
> list from the current kernel to the next kernel across kexec system call.
> These functions do not have architecture specific code, but are
> currently limited to powerpc.
>
> Move remove_ima_buffer() and setup_ima_buffer() calls into
> of_kexec_alloc_and_setup_fdt() defined in "drivers/of/kexec.c".
>
> Move the remaining architecture independent functions from
> "arch/powerpc/kexec/ima.c" to "drivers/of/kexec.c".
> Delete "arch/powerpc/kexec/ima.c" and "arch/powerpc/include/asm/ima.h".
> Remove references to the deleted files and functions in powerpc and
> in ima.
>
> Co-developed-by: Prakhar Srivastava <prsriva@...ux.microsoft.com>
> Signed-off-by: Prakhar Srivastava <prsriva@...ux.microsoft.com>
> Signed-off-by: Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>
> ---
>  arch/powerpc/include/asm/ima.h    |  27 ----
>  arch/powerpc/include/asm/kexec.h  |   3 -
>  arch/powerpc/kexec/Makefile       |   7 -
>  arch/powerpc/kexec/file_load.c    |  25 ----
>  arch/powerpc/kexec/file_load_64.c |   4 -
>  arch/powerpc/kexec/ima.c          | 202 -------------------------
>  drivers/of/kexec.c                | 239 ++++++++++++++++++++++++++++++
>  include/linux/of.h                |   2 +
>  security/integrity/ima/ima.h      |   4 -
>  9 files changed, 241 insertions(+), 272 deletions(-)
>  delete mode 100644 arch/powerpc/include/asm/ima.h
>  delete mode 100644 arch/powerpc/kexec/ima.c

Reviewed-by: Thiago Jung Bauermann <bauerman@...ux.ibm.com>
Tested-by: Thiago Jung Bauermann <bauerman@...ux.ibm.com>

-- 
Thiago Jung Bauermann
IBM Linux Technology Center