[PATCH 0/3] block: Introduce the 'zeroes-co' driver to help security reports

[Philippe Mathieu-Daudé]

Hi,

This is an alternative approach to changing null-co driver
default 'read-zeroes' option to true:
https://www.mail-archive.com/qemu-block@nongnu.org/msg80873.html

Instead we introduce yet another block driver with an explicit
name: 'zeroes-co'. We then clarify in secure-coding-practices.rst
that security reports have to be sent using this new driver.

The 2nd patch is RFC because I won't spend time converting the
tests until the first patch is discussed, as I already spent enough
time doing that in the previous mentioned series.

Regards,

Phil.

Philippe Mathieu-Daudé (3):
  block: Introduce the 'zeroes-co' driver
  tests/test-blockjob: Use zeroes-co instead of null-co,read-zeroes=on
  docs/secure-coding-practices: Describe null-co/zeroes-co block drivers

 docs/devel/secure-coding-practices.rst |   7 +
 block/zeroes.c                         | 306 +++++++++++++++++++++++++
 tests/test-blockjob.c                  |   4 +-
 block/meson.build                      |   1 +
 4 files changed, 315 insertions(+), 3 deletions(-)
 create mode 100644 block/zeroes.c

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2.26.2