Re: [PATCH v2 0/5] stubdom: remove grub-pv

Juergen Gross <[email protected]> Wed, 12 Aug 2026 10:16:58 +0200
Newsgroups	org.xenproject.lists.xen-devel
Message-ID	<[email protected]>
Any feedback?

On 20.07.26 10:18, Juergen Gross wrote:
> The grub-pv stubdoms (32- and 64-bit) are disabled by default since
> several years now.
> 
> Remove them in order to enable removing quite some more code from Xen.
> In case someone is really depending on grub-pv, they can easily take it
> from an older Xen build, as there is no Xen version dependency in
> grub-pv (a version built 3 years ago has been tested to still work
> with current 4.23 staging Xen).
> 
> Note that after this series has been committed, some additional
> cleanup is possible by removing stubdom libpci and zlib support, but
> this will require a modification of Mini-OS depending on these patches.
> 
> Changes in V2:
> - moved one hunk from patch 2 to patch 1
> 
> Juergen Gross (5):
>    stubdom: remove support for grub-pv
>    stubdom: remove support for building in 32-bit mode
>    stubdom: remove building of libxenguest and libxenctrl
>    docs: remove stale stubdom entries from stubdom.txt
>    tools/libxenguest: remove Mini-OS specific parts
> 
>   Makefile                                      |    6 -
>   config/Stubdom.mk.in                          |    3 -
>   docs/misc/stubdom.txt                         |   69 -
>   stubdom/.gitignore                            |    1 -
>   stubdom/Makefile                              |   69 +-
>   stubdom/configure                             |   65 -
>   stubdom/configure.ac                          |    2 -
>   stubdom/grub.patches/00cvs                    | 1022 -----
>   stubdom/grub.patches/10graphics.diff          | 2297 -----------
>   stubdom/grub.patches/11graphics-keyboard.diff |   13 -
>   stubdom/grub.patches/20print_func.diff        |   52 -
>   stubdom/grub.patches/30savedefault.diff       |  186 -
>   .../grub.patches/40ext3_256byte_inode.diff    |  114 -
>   stubdom/grub.patches/50fs_fulldisk.diff       |   72 -
>   stubdom/grub.patches/60ext4.diff              |  474 ---
>   stubdom/grub.patches/61btrfs.diff             | 3499 -----------------
>   stubdom/grub.patches/70compiler_warnings.diff |   45 -
>   stubdom/grub.patches/99minios                 | 1570 --------
>   stubdom/grub/Makefile                         |   88 -
>   stubdom/grub/boot-x86_32.S                    |  112 -
>   stubdom/grub/boot-x86_64.S                    |  108 -
>   stubdom/grub/config.h                         |   12 -
>   stubdom/grub/kexec.c                          |  434 --
>   stubdom/grub/mini-os.c                        |  771 ----
>   stubdom/grub/mini-os.h                        |    7 -
>   stubdom/grub/minios.cfg                       |    4 -
>   stubdom/grub/osdep.h                          |   30 -
>   tools/libs/guest/Makefile.common              |   15 -
>   tools/libs/guest/xg_dom_decompress_unsafe.c   |   48 -
>   tools/libs/guest/xg_dom_decompress_unsafe.h   |   28 -
>   .../guest/xg_dom_decompress_unsafe_bzip2.c    |   14 -
>   .../libs/guest/xg_dom_decompress_unsafe_lz4.c |   39 -
>   .../guest/xg_dom_decompress_unsafe_lzma.c     |   14 -
>   .../guest/xg_dom_decompress_unsafe_lzo1x.c    |   44 -
>   .../libs/guest/xg_dom_decompress_unsafe_xz.c  |   46 -
>   .../guest/xg_dom_decompress_unsafe_zstd.c     |   44 -
>   36 files changed, 1 insertion(+), 11416 deletions(-)
>   delete mode 100644 stubdom/grub.patches/00cvs
>   delete mode 100644 stubdom/grub.patches/10graphics.diff
>   delete mode 100644 stubdom/grub.patches/11graphics-keyboard.diff
>   delete mode 100644 stubdom/grub.patches/20print_func.diff
>   delete mode 100644 stubdom/grub.patches/30savedefault.diff
>   delete mode 100644 stubdom/grub.patches/40ext3_256byte_inode.diff
>   delete mode 100644 stubdom/grub.patches/50fs_fulldisk.diff
>   delete mode 100644 stubdom/grub.patches/60ext4.diff
>   delete mode 100644 stubdom/grub.patches/61btrfs.diff
>   delete mode 100644 stubdom/grub.patches/70compiler_warnings.diff
>   delete mode 100644 stubdom/grub.patches/99minios
>   delete mode 100644 stubdom/grub/Makefile
>   delete mode 100644 stubdom/grub/boot-x86_32.S
>   delete mode 100644 stubdom/grub/boot-x86_64.S
>   delete mode 100644 stubdom/grub/config.h
>   delete mode 100644 stubdom/grub/kexec.c
>   delete mode 100644 stubdom/grub/mini-os.c
>   delete mode 100644 stubdom/grub/mini-os.h
>   delete mode 100644 stubdom/grub/minios.cfg
>   delete mode 100644 stubdom/grub/osdep.h
>   delete mode 100644 tools/libs/guest/xg_dom_decompress_unsafe.c
>   delete mode 100644 tools/libs/guest/xg_dom_decompress_unsafe.h
>   delete mode 100644 tools/libs/guest/xg_dom_decompress_unsafe_bzip2.c
>   delete mode 100644 tools/libs/guest/xg_dom_decompress_unsafe_lz4.c
>   delete mode 100644 tools/libs/guest/xg_dom_decompress_unsafe_lzma.c
>   delete mode 100644 tools/libs/guest/xg_dom_decompress_unsafe_lzo1x.c
>   delete mode 100644 tools/libs/guest/xg_dom_decompress_unsafe_xz.c
>   delete mode 100644 tools/libs/guest/xg_dom_decompress_unsafe_zstd.c
>
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