Re: [PATCH v1 08/22] drop libxml2 checks since libxml is not actually used (for parallels)

[Vladimir Sementsov-Ogievskiy]

24.01.2022 23:15, Alex Bennée wrote:
> From: Michael Tokarev <mjt@tls.msk.ru>
>
> For a long time, we assumed that libxml2 is necessary for parallels
> block format support (block/parallels*). However, this format actually
> does not use libxml [*]. Since this is the only user of libxml2 in
> whole QEMU tree, we can drop all libxml2 checks and dependencies too.
>
> It is even more: --enable-parallels configure option was the only
> option which was silently ignored when it's (fake) dependency
> (libxml2) isn't installed.
>
> Drop all mentions of libxml2.
>
> [*] Actually the basis for libxml use were introduced in commit
>      ed279a06c53 ("configure: add dependency") but the implementation
>      was never merged:
>      
> https://lore.kernel.org/qemu-devel/70227bbd-a517-70e9-714f-e6e0ec431be9@openvz.org/
>
> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
> Message-Id: <20220119090423.149315-1-mjt@msgid.tls.msk.ru>
> Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> [PMD: Updated description and adapted to use lcitool]
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> Message-Id: <20220121154134.315047-5-f4bug@amsat.org>

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>

Parallels format includes xml disk descriptor format, which was never merged to 
Qemu. Yes, the introduced dependency was premature, sorry for that :(

The implementation of xml part was sent, but only for someone other who want to 
continue this work, Virtuozzo don't have such plans now:

https://lists.gnu.org/archive/html/qemu-devel/2020-11/msg03601.html

--
Best regards,
Vladimir