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Tsirkin" , Stefano Stabellini , "Richard Henderson" , Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= , Chuck Zmudzinski Subject: Re: [PATCH v3 2/6] hw/isa/piix3: Reuse piix3_realize() in piix3_xen_realize() Message-ID: References: <20230312120221.99183-1-shentey@gmail.com> <20230312120221.99183-3-shentey@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20230312120221.99183-3-shentey@gmail.com> Received-SPF: pass client-ip=216.71.145.155; envelope-from=prvs=446aa7e4f=anthony.perard@citrix.com; helo=esa3.hc3370-68.iphmx.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_PASS=-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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Anthony PERARD From: Anthony PERARD via Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Sun, Mar 12, 2023 at 01:02:17PM +0100, Bernhard Beschow wrote: > This is a preparational patch for the next one to make the following > more obvious: > > First, pci_bus_irqs() is now called twice in case of Xen where the > second call overrides the pci_set_irq_fn with the Xen variant. pci_bus_irqs() does allocates pci_bus->irq_count, so the second call in piix3_xen_realize() will leak `pci_bus->irq_count`. Could you look if pci_bus_irqs_cleanup() can be called before the second pci_bus_irqs() call, or maybe some other way to avoid the leak? > Second, pci_bus_set_route_irq_fn() is now also called in Xen mode. > > Signed-off-by: Bernhard Beschow > Reviewed-by: Michael S. Tsirkin Beside the leak which I think can happen only once, patch is fine: Reviewed-by: Anthony PERARD Thanks, -- Anthony PERARD