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[83.57.175.68]) by smtp.gmail.com with ESMTPSA id jj16sm9783407ejc.19.2021.03.10.03.43.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Mar 2021 03:43:16 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH 0/3] block: Introduce the 'zeroes-co' driver to help security reports Date: Wed, 10 Mar 2021 12:43:11 +0100 Message-Id: <20210310114314.1068957-1-philmd@redhat.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=216.205.24.124; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.251, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fam Zheng , Kevin Wolf , Vladimir Sementsov-Ogievskiy , qemu-block@nongnu.org, Markus Armbruster , Max Reitz , Bandan Das , Prasad J Pandit , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi,=0D =0D This is an alternative approach to changing null-co driver=0D default 'read-zeroes' option to true:=0D https://www.mail-archive.com/qemu-block@nongnu.org/msg80873.html=0D =0D Instead we introduce yet another block driver with an explicit=0D name: 'zeroes-co'. We then clarify in secure-coding-practices.rst=0D that security reports have to be sent using this new driver.=0D =0D The 2nd patch is RFC because I won't spend time converting the=0D tests until the first patch is discussed, as I already spent enough=0D time doing that in the previous mentioned series.=0D =0D Regards,=0D =0D Phil.=0D =0D Philippe Mathieu-Daud=C3=A9 (3):=0D block: Introduce the 'zeroes-co' driver=0D tests/test-blockjob: Use zeroes-co instead of null-co,read-zeroes=3Don=0D docs/secure-coding-practices: Describe null-co/zeroes-co block drivers=0D =0D docs/devel/secure-coding-practices.rst | 7 +=0D block/zeroes.c | 306 +++++++++++++++++++++++++=0D tests/test-blockjob.c | 4 +-=0D block/meson.build | 1 +=0D 4 files changed, 315 insertions(+), 3 deletions(-)=0D create mode 100644 block/zeroes.c=0D =0D --=20=0D 2.26.2=0D =0D