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[34.105.23.239]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b06e5f12d9sm62873345ad.39.2026.03.19.11.29.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Mar 2026 11:29:50 -0700 (PDT) Date: Thu, 19 Mar 2026 18:29:46 +0000 From: David Matlack To: Rubin Du Cc: Alex Williamson , Shuah Khan , kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v9 1/2] selftests/vfio: Skip MSI tests for drivers that cannot raise interrupts Message-ID: References: <20260317214239.124857-1-rubind@nvidia.com> <20260317214239.124857-2-rubind@nvidia.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260317214239.124857-2-rubind@nvidia.com> On 2026-03-17 02:42 PM, Rubin Du wrote: > Some device drivers may not have the capability to trigger MSI/MSI-X > interrupts from software. Add checks to skip the send_msi test and > the MSI portion of the mix_and_match test when the driver's send_msi > callback is NULL, allowing these drivers to still run the DMA tests. I would prefer not to make send_msi() optional if possible. We sould need changes like this in all future tests that want to use send_msi(). Is there really no way for the nv_falcon to do something to cause the NV GPU to send an MSI?