Re: [PATCH v2 0/4] kexec/arm64: Add support for zlib compressed kernel images (Image.gz)

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On Mon, Jul 15, 2019 at 11:32:52AM +0530, Bhupesh Sharma wrote:
> Changes since v1:
> ----------------
> (v1 can be viewed here: http://lists.infradead.org/pipermail/kexec/2019-July/023288.html)
>  - Fixed the potential file descriptor leakage code legs pointed out by
>    Simon.
>  - Ran Valgrind to make sure no potential memory leakage issues are
>    introduced by this patchset.
> 
> This patchset adds the support for zlib compressed kernel images
> (Image.gz) for arm64 kexec-tools.
> 
> This was discussed a bit with the arm64 kernel maintainers (see [0]) and
> after discussing the pros and cons of adding this support in
> kernel-space v/s in user-space, we decided it makes more sense to add
> this support to the user-space kexec-tools.
> 
> Note that this series adds support for unsigned arm64 Image.gz files
> only as signing an Image.gz type file is not a easy implementation from
> kexec-tools p-o-v. Also even standard signing tools like sbsign fail to
> recongize the Image.gz format:
> 
>  $ sbsign --key certs/signing_key.pem  --cert certs/signing_key.pem Image.gz
>    Invalid DOS header magic
> 
> ... because that gzip file isn't a PE32+ that can be loaded by UEFI.
> So I will work on the same in coming days and try to send a RFC
> patchset for the same later on.
> 
> [0]. http://lists.infradead.org/pipermail/kexec/2019-June/023156.html

Thanks, applied for inclusion in v2.0.20.

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