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Tsirkin" To: David Vrabel Cc: "qemu-devel@nongnu.org" , Zhao Liu , Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= , Paolo Bonzini , Pierrick Bouvier Subject: Re: [PATCH v3 0/4] hw/pci-bridge: Configurable apparent bandwidth for the PCIe topology Message-ID: <20261027074859-mutt-send-email-mst@kernel.org> References: <20260928152431.310363-1-david.vrabel@nutanix.com> <6fa1a07f-afbb-4c65-85e0-ddcebd9bddec@nutanix.com> <20261015101016-mutt-send-email-mst@kernel.org> <712fbce9-8b13-47c1-b0cb-b9f20807f05f@nutanix.com> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <712fbce9-8b13-47c1-b0cb-b9f20807f05f@nutanix.com> Received-SPF: pass client-ip=170.10.133.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: qemu development List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org X-Spam-Status: No, score=-6.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Tue, Oct 27, 2026 at 11:18:27AM +0000, David Vrabel wrote: > Hi Michael, > > On 15/10/2026 15:10, Michael S. Tsirkin wrote: > > > > On Thu, Oct 15, 2026 at 02:41:55PM +0100, David Vrabel wrote: > > > > > > ping? > > > On 28/09/2026 16:24, David Vrabel wrote: > > > > When a VM has been assigned a number of PCIe devices behind a common > > > > PCIe switch and the VM intends to use peer-to-peer (P2P) transfers > > > > between the devices, it is useful to be able to more report the > > > > apparent PCIe bandwidth so it reflects the real handwidth of the > > > > underlying hardware. This allows software in the VM (such as NCCL[1]) > > > > to make better decisions about whether to use P2P or not. > > > > will merge, thanks! > > I appreciate you might be swamped by a pile of AI-generated security work, > or perhaps I'm missing some QEMU-specific process (merge window?), but can > you estimate when this might be merged, thanks? > > If it helps I can prepare a gitlab pull request. > > David This week, sorry about the delay. -- MST