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Mon, 06 Oct 2025 15:27:02 -0700 (PDT) Date: Mon, 6 Oct 2025 22:26:42 +0000 Mime-Version: 1.0 X-Mailer: git-send-email 2.51.0.618.g983fd99d29-goog Message-ID: <20251006222642.691067-1-navidem@google.com> Subject: [PATCH] tests/qtest/fuzz: Add generic fuzzer for pcie-root-port From: Navid Emamdoost To: qemu-devel@nongnu.org Cc: navidem@google.com, zsm@google.com, Alexander Bulekov , Paolo Bonzini , Bandan Das , Stefan Hajnoczi , Fabiano Rosas , Darren Kenny , Qiuhao Li , Laurent Vivier Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::449; envelope-from=3NkLkaAcKCpkG3OB67F9HH9E7.5HFJ7FN-67O7EGHG9GN.HK9@flex--navidem.bounces.google.com; helo=mail-pf1-x449.google.com X-Spam_score_int: -95 X-Spam_score: -9.6 X-Spam_bar: --------- X-Spam_report: (-9.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Mon, 06 Oct 2025 18:41:55 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @google.com) X-ZM-MESSAGEID: 1759790552619116600 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add a new generic fuzz target for the 'pcie-root-port' device. This allows the generic fuzzer to directly target the device's interfaces, which is not sufficiently covered by existing fuzz targets. Reviewed-by: Alexander Bulekov --- This new target significantly improves code coverage for the PCIe Root Port implementation. The baseline coverage shown below was generated by running all existing fuzz targets with the oss-fuzz corpus. File New Target Baseline Change ----------------------------------------------------------------- pcie_root_port.c 67.7% (86/127) 10.2% (13/127) +73 lines gen_pcie_root_port.c 68.2% (45/66) 28.8% (19/66) +26 lines Signed-off-by: Navid Emamdoost --- tests/qtest/fuzz/generic_fuzz_configs.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tests/qtest/fuzz/generic_fuzz_configs.h b/tests/qtest/fuzz/gen= eric_fuzz_configs.h index ef0ad95712..fd2ae47ca4 100644 --- a/tests/qtest/fuzz/generic_fuzz_configs.h +++ b/tests/qtest/fuzz/generic_fuzz_configs.h @@ -247,6 +247,10 @@ const generic_fuzz_config predefined_configs[] =3D { .args =3D "-machine q35 -nodefaults " "-parallel file:/dev/null", .objects =3D "parallel*", + },{ + .name =3D "pcie-root-port", + .args =3D "-machine q35 -nodefaults -device pcie-root-port", + .objects =3D "pcie-root*", } }; =20 --=20 2.51.0.618.g983fd99d29-goog