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[PATCH 0/1] Allow to build virtiofsd without the entire tools

From: Wainer dos Santos Moschetta
Subject: [PATCH 0/1] Allow to build virtiofsd without the entire tools
Date: Mon, 1 Feb 2021 18:14:55 -0300

Not too long ago (QEMU 5.0) it was possible to configure with --disable-tools
and still have virtiofsd built. With the recent port of the build system to
Meson, it is now built together with the tools though.

The Kata Containers [1] project build QEMU with --disable-tools to decrease the
attack surface, apart from the fact that tools (except for virtiofsd) aren't
used at all. So the ability to build only virtiofsd is appreciated.

On commit cece116c939 it was introduced the --enable-virtiofsd option. One
might think that option will enable the virtiofsd build regardless of 
--disable-tools but it isn't the current behavior. So the patch that I am
sending allows to disable all tools but virtiofsd.

Side note: in a private chat with Stefan Hajnoczi he come up with the idea
that perhaps --disable-tools could be like --without-default-features where
one can add back on feature-by-feature basis. This is outside the scope of this
series but I thought in sharing because IMHO it is deserves a discussion.

[1] https://katacontainers.io

Wainer dos Santos Moschetta (1):
  virtiofsd: Allow to build it without the tools

 tools/meson.build | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)


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