linux-kernel - Re: [PATCH v5 1/5] efi: arm64: Introduce ability to find mirrored memory ranges

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Message-ID: <YqmuQIpkY7TJHAh6@arm.com>
Date:   Wed, 15 Jun 2022 11:02:40 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Wupeng Ma <mawupeng1@...wei.com>
Cc:     corbet@....net, will@...nel.org, ardb@...nel.org,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
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Subject: Re: [PATCH v5 1/5] efi: arm64: Introduce ability to find mirrored
 memory ranges

On Tue, Jun 14, 2022 at 05:21:52PM +0800, Wupeng Ma wrote:
> From: Ma Wupeng <mawupeng1@...wei.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@...wei.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.

-- 
Catalin