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From:   Ard Biesheuvel <ardb@kernel.org>
Date:   Wed, 15 Jun 2022 12:03:50 +0200
Message-ID: <CAMj1kXG+UgWeAVyh8CD5S0M4n2SKFGcP0ayOn41bKmyoVb8QXQ@mail.gmail.com>
Subject: Re: [PATCH v5 1/5] efi: arm64: Introduce ability to find mirrored
 memory ranges
To:     Catalin Marinas <catalin.marinas@arm.com>
Cc:     Wupeng Ma <mawupeng1@huawei.com>, Jonathan Corbet <corbet@lwn.net>,
        Will Deacon <will@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
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        Mike Rapoport <rppt@kernel.org>,
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On Wed, 15 Jun 2022 at 12:02, Catalin Marinas <catalin.marinas@arm.com> wrote:
>
> On Tue, Jun 14, 2022 at 05:21:52PM +0800, Wupeng Ma wrote:
> > From: Ma Wupeng <mawupeng1@huawei.com>
> >
> > Commit b05b9f5f9dcf ("x86, mirror: x86 enabling - find mirrored memory
> > ranges") introduce the efi_find_mirror() function on x86. In order to reuse
> > the API we make it public.
> >
> > Arm64 can support mirrored memory too, so function efi_find_mirror() is added to
> > efi_init() to this support for arm64.
> >
> > Since efi_init() is shared by ARM, arm64 and riscv, this patch will bring
> > mirror memory support for these architectures, but this support is only tested
> > in arm64.
> >
> > Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
> > ---
> >  arch/x86/include/asm/efi.h      |  4 ----
> >  arch/x86/platform/efi/efi.c     | 23 -----------------------
> >  drivers/firmware/efi/efi-init.c |  1 +
> >  drivers/firmware/efi/efi.c      | 23 +++++++++++++++++++++++
> >  include/linux/efi.h             |  3 +++
>
> The subject prefix says "efi: arm64: " but it looks like x86 diffstat
> here. You may want to get an ack from the x86 maintainers.
>

This just moves efi code around, and this is going through the EFI
tree, so that should be fine. I'll fix the subject in any case,
though.