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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2e8422b8cc1sm76306455ad.54.2026.10.15.00.54.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 15 Oct 2026 00:54:30 -0700 (PDT) Message-ID: <56832d7b-e7a1-49c6-8995-4b17a442e4e6@oss.qualcomm.com> Date: Thu, 15 Oct 2026 15:54:25 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/7] Enable Qualcomm WiFi PCIe passthrough to VMs To: Jason Gunthorpe , Jeff Johnson Cc: Jose Ignacio Tornos Martinez , alex@shazbot.org, bhelgaas@google.com, jjohnson@kernel.org, johannes@sipsolutions.net, mani@kernel.org, yishaih@nvidia.com, skolothumtho@nvidia.com, kevin.tian@intel.com, linux-pci@vger.kernel.org, kvm@vger.kernel.org, linux-wireless@vger.kernel.org, ath11k@lists.infradead.org, ath12k@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Rameshkumar Sundaram References: <20261011074514.515894-1-jtornosm@redhat.com> <20261012144835.GG14213@ziepe.ca> From: Baochen Qiang Content-Language: en-US In-Reply-To: <20261012144835.GG14213@ziepe.ca> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDE1MDAzMSBTYWx0ZWRfX5uiMdwUxlp9x rrn0RubUd+QIOmIwVF4t7lnSdFT8wfSYWKAKALr41Tr9KN3uJ9VLAB4ov6SsvewX4GE4PdCzKD7 6IwK36blk3uausuwMQwp3UzQpkyRQpGj560uYPXSgGm5u+hoEJTF/ffT4F8glUW5W+6gwgRe/eg n6UCN1lmAStzUqTFv1r5imJ8f2kPzFCRAIypZUYkDh2TmHvdcLTFM11ELvKsQGYTxXu1Z/fyorD sLbUF0XC5BtVVYv9OG+8jOierWMjV647znrGkmhr36w1+qQaQQ/b/m9fEy1cz/e+f5ExImU6ysT YbuPDuGkVtAnIARqzpDD7uExXihQGoVYTja174AidA62HHbKo1O3Ya/JKtk64fnv1JPckd9H2hZ BuFFN5mtcrNOqrB9ygAjOQwdGXLPVuo4kvcTgrCFQFRUZzzR1kcQFWDFxf7yYJclST+LyjBINPt ADsVpn0q1F5T80aSCTQ== X-Proofpoint-GUID: KY-9Tf58EYFOFOwCIEh68U6G1F7dSWPt X-Proofpoint-Spam-Info: AW1haW4tMjYxMDE1MDAzMSBTYWx0ZWRfX3/W9PbBdTtox VW8Hy/m4h7dW224dtnA4fBZT7TGjpshFScz6n24ADmnscuP6cRY1yFgFFblng1aW7rd217iHcD4 OcLDHTXpiOz0LFj4q6ohtxHXILvABLs= X-Proofpoint-ORIG-GUID: KY-9Tf58EYFOFOwCIEh68U6G1F7dSWPt X-Authority-Analysis: v=2.4 cv=V/noQuni c=1 sm=1 tr=0 ts=6ad086b8 cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=n56IT1IzDtYYEsRGsiEA:9 a=QEXdDO2ut3YA:10 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-13_01,2026-10-14_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 adultscore=0 clxscore=1015 phishscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610150031 On 10/12/2026 10:48 PM, Jason Gunthorpe wrote: > On Sun, Oct 11, 2026 at 11:22:26AM -0700, Jeff Johnson wrote: > >> Thank you for providing this level of detail in your cover letter. I've raised >> this issue with the engineering team in the past, but I've once again raised >> the issue with your in-depth analysis. > > The main issue here is the driver can't use a normal MSI-X in the > normal MSI-X table. to be accurate, it is MSI :) > > "private" MSI registers don't work for virtualization. > > Jason