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AKwUvBwrUw8kAI1hugK+U4SEOsyFAjwCd17mxZ/6wUWrGyHAJcBEtxboQkF9pgDdTai3oMVzehthWtI=@lists.infradead.org X-Gm-Message-State: APuU4Z9KK3w/emBbfLS6Fr2/qj8QEBpczxAcLVLeXldwYL50ykPmQ9ud wCTC7G/YYS3lSwazq5HaeVjv8JgIZxijpp2XKJrb65Ni2T1rfjqmhLR/Nnrso6Xo/R8x/nDQFep Xhl6ocQ== X-Received: from plnl5.prod.google.com ([2002:a17:902:fd85:b0:2ea:44fa:2c44]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:f691:b0:2e2:d39f:182f with SMTP id d9443c01a7336-2eb3643d489mr99134825ad.28.1793631529137; Mon, 02 Nov 2026 06:58:49 -0800 (PST) Date: Mon, 2 Nov 2026 06:58:48 -0800 In-Reply-To: <20261102074657.27715-1-jtornosm@redhat.com> X-Archived-By: Mime-Version: 1.0 References: <20261029165845.GQ1685504@ziepe.ca> <20261102074657.27715-1-jtornosm@redhat.com> Message-ID: Subject: Re: [PATCH v3 2/8] KVM: add PCI MSI hypercall for VFIO passthrough From: Sean Christopherson To: Jose Ignacio Tornos Martinez Cc: jgg@ziepe.ca, alex@shazbot.org, ath11k@lists.infradead.org, ath12k@lists.infradead.org, bhelgaas@google.com, jjohnson@kernel.org, johannes@sipsolutions.net, kevin.tian@intel.com, kvm@vger.kernel.org, kwilczynski@kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-wireless@vger.kernel.org, lpieralisi@kernel.org, mani@kernel.org, pbonzini@redhat.com, robh@kernel.org, vkuznets@redhat.com Content-Type: text/plain; charset="us-ascii" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261102_065850_894638_0B7F95CD X-CRM114-Status: GOOD ( 11.87 ) X-Spam-Score: -9.5 (---------) X-BeenThere: ath12k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "ath12k" X-Spam-Status: No, score=-13.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIMWL_WL_MED,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_IN_DEF_DKIM_WL 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 Mon, Nov 02, 2026, Jose Ignacio Tornos Martinez wrote: > > I probably would not have selected this, it is why I suggested > > virtio-msi or something that could be optional and seperate from the > > core KVM guest ABI. > > > > But maybe there is interest in doing it this way? > > Since there was no feedback from KVM maintainers, NAK to adding any KVM-handled hypercall, and probably NAK to any approach that requires KVM changes. With regard to timing, please show a little patience and awareness. It's Monday. You posted a fairly large series on a Thursday, during a merge window. If you change direction after ~2 days for a series of this natures (touchs multiple subsystems and introduces guest/host ABI), you're likely going to end up with severe whiplash.