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a="365824443" X-IronPort-AV: E=Sophos;i="6.01,170,1684825200"; d="scan'208";a="365824443" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10756"; a="841770774" X-IronPort-AV: E=Sophos;i="6.01,170,1684825200"; d="scan'208";a="841770774" From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, joao.m.martins@oracle.com, avihaih@nvidia.com, chao.p.peng@intel.com Subject: [PATCH v5 3/7] vfio/pci: Disable INTx in vfio_realize error path Date: Fri, 30 Jun 2023 15:36:33 +0800 Message-Id: <20230630073637.124234-2-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230630073637.124234-1-zhenzhong.duan@intel.com> References: <20230630073637.124234-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=134.134.136.65; envelope-from=zhenzhong.duan@intel.com; helo=mga03.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action 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 @intel.com) X-ZM-MESSAGEID: 1688111472112100001 Content-Type: text/plain; charset="utf-8" When vfio realize fails, INTx isn't disabled if it has been enabled. This may confuse host side with unhandled interrupt report. Fixes: c5478fea27ac ("vfio/pci: Respond to KVM irqchip change notifier") Signed-off-by: Zhenzhong Duan Reviewed-by: C=C3=A9dric Le Goater Reviewed-by: Joao Martins --- hw/vfio/pci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index ab6645ba60af..31c4ab250fbe 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3220,6 +3220,9 @@ static void vfio_realize(PCIDevice *pdev, Error **err= p) return; =20 out_deregister: + if (vdev->interrupt =3D=3D VFIO_INT_INTx) { + vfio_intx_disable(vdev); + } pci_device_set_intx_routing_notifier(&vdev->pdev, NULL); if (vdev->irqchip_change_notifier.notify) { kvm_irqchip_remove_change_notifier(&vdev->irqchip_change_notifier); --=20 2.34.1