From: Jason Gunthorpe <jgg@nvidia.com>
To: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>,
Nathan Chen <nathanc@nvidia.com>,
"qemu-arm@nongnu.org" <qemu-arm@nongnu.org>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"eric.auger@redhat.com" <eric.auger@redhat.com>,
"peter.maydell@linaro.org" <peter.maydell@linaro.org>,
"ddutile@redhat.com" <ddutile@redhat.com>,
Linuxarm <linuxarm@huawei.com>,
"Wangzhou (B)" <wangzhou1@hisilicon.com>,
jiangkunkun <jiangkunkun@huawei.com>,
Jonathan Cameron <jonathan.cameron@huawei.com>,
"zhangfei.gao@linaro.org" <zhangfei.gao@linaro.org>,
Nicolin Chen <nicolinc@nvidia.com>
Subject: Re: [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable nested SMMUv3
Date: Fri, 13 Dec 2024 08:43:46 -0400 [thread overview]
Message-ID: <Z1wsAkZ7LUTv4HRv@nvidia.com> (raw)
In-Reply-To: <Z1whSkMS_TVyYGsW@redhat.com>
On Fri, Dec 13, 2024 at 11:58:02AM +0000, Daniel P. Berrangé wrote:
> Libvirt does not rquire use of pcie-switch. It supports them, but in the
> absence of app requested configs, libvirt will always just populate
> pcie-root-port devices. switches are something that has to be explicitly
> asked for, and I don't see much need todo that.
If you are assigning all VFIO devices within a multi-device iommu
group there are good reasons to show the switch, and the switch has to
reflect certain ACS properties. We have some systems like this..
Jason
next prev parent reply other threads:[~2024-12-13 12:44 UTC|newest]
Thread overview: 150+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-08 12:52 [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable nested SMMUv3 Shameer Kolothum via
2024-11-08 12:52 ` [RFC PATCH 1/5] hw/arm/virt: Add an SMMU_IO_LEN macro Shameer Kolothum via
2024-11-13 16:48 ` Eric Auger
2024-11-08 12:52 ` [RFC PATCH 2/5] hw/arm/smmuv3: Add initial support for SMMUv3 Nested device Shameer Kolothum via
2024-11-13 17:12 ` Eric Auger
2024-11-13 18:05 ` Nicolin Chen
2024-11-26 18:28 ` Donald Dutile
2024-11-27 10:21 ` Shameerali Kolothum Thodi via
2024-11-27 16:00 ` Jason Gunthorpe
2024-11-27 16:05 ` Eric Auger
2024-11-28 3:25 ` Zhangfei Gao
2024-11-28 8:06 ` Eric Auger
2024-11-28 8:28 ` Shameerali Kolothum Thodi via
2024-11-28 8:41 ` Eric Auger
2024-11-28 12:52 ` Jason Gunthorpe
2024-11-27 23:03 ` Donald Dutile
2024-11-28 12:51 ` Jason Gunthorpe
2024-11-28 4:29 ` Donald Dutile
2024-11-28 4:44 ` Nicolin Chen
2024-11-28 12:54 ` Jason Gunthorpe
2024-11-28 18:22 ` Nicolin Chen
2024-12-02 18:53 ` Donald Dutile
2024-11-28 8:17 ` Shameerali Kolothum Thodi via
2024-11-14 8:20 ` Shameerali Kolothum Thodi via
2024-11-14 8:41 ` Eric Auger
2024-11-14 13:27 ` Shameerali Kolothum Thodi via
2024-11-15 22:32 ` Nicolin Chen
2024-11-13 18:00 ` Eric Auger
2024-11-08 12:52 ` [RFC PATCH 3/5] hw/arm/smmuv3: Associate a pci bus with a " Shameer Kolothum via
2024-11-13 17:58 ` Eric Auger
2024-11-14 8:30 ` Shameerali Kolothum Thodi via
2025-01-30 16:29 ` Daniel P. Berrangé
2025-01-30 18:19 ` Shameerali Kolothum Thodi via
2024-11-08 12:52 ` [RFC PATCH 4/5] hw/arm/virt-acpi-build: Build IORT with multiple SMMU nodes Shameer Kolothum via
2024-11-18 10:01 ` Eric Auger
2024-11-18 11:44 ` Shameerali Kolothum Thodi via
2024-11-18 13:45 ` Eric Auger
2024-11-18 15:00 ` Shameerali Kolothum Thodi via
2024-11-18 18:09 ` Eric Auger
2024-11-20 14:16 ` Shameerali Kolothum Thodi via
2024-11-20 16:10 ` Eric Auger
2024-11-20 16:26 ` Shameerali Kolothum Thodi via
2024-11-21 9:46 ` Shameerali Kolothum Thodi via
2024-12-10 20:48 ` Nicolin Chen
2024-12-11 15:21 ` Shameerali Kolothum Thodi via
2024-12-13 0:28 ` Nicolin Chen
2024-11-08 12:52 ` [RFC PATCH 5/5] hw/arm/virt-acpi-build: Add IORT RMR regions to handle MSI nested binding Shameer Kolothum via
2024-11-13 18:31 ` Nicolin Chen
2024-11-14 8:48 ` Shameerali Kolothum Thodi via
2024-11-14 10:41 ` Eric Auger
2024-11-15 22:12 ` Nicolin Chen
2024-12-10 23:01 ` Nicolin Chen
2024-12-11 0:48 ` Jason Gunthorpe
2024-12-11 1:28 ` Nicolin Chen
2024-12-11 13:11 ` Jason Gunthorpe
2024-12-11 17:20 ` Nicolin Chen
2024-12-11 18:01 ` Jason Gunthorpe
2024-11-12 22:59 ` [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable nested SMMUv3 Nicolin Chen
2024-11-14 7:56 ` Shameerali Kolothum Thodi via
2024-11-20 23:59 ` Nathan Chen
2024-11-21 10:12 ` Shameerali Kolothum Thodi via
2024-11-22 1:41 ` Nathan Chen
2024-11-22 17:38 ` Shameerali Kolothum Thodi via
2024-11-22 18:53 ` Nathan Chen
2025-02-04 14:00 ` Eric Auger
2024-12-13 11:58 ` Daniel P. Berrangé
2024-12-13 12:43 ` Jason Gunthorpe [this message]
2024-12-12 23:54 ` Nathan Chen
2024-12-13 1:01 ` Nathan Chen
2024-12-16 9:31 ` Shameerali Kolothum Thodi via
2025-01-25 2:43 ` Nathan Chen
2025-01-27 15:26 ` Shameerali Kolothum Thodi via
2025-01-27 23:35 ` Nathan Chen
2024-11-13 16:16 ` Mostafa Saleh
2024-11-14 8:01 ` Shameerali Kolothum Thodi via
2024-11-14 11:49 ` Mostafa Saleh
2024-11-13 21:42 ` Nicolin Chen
2024-11-14 9:11 ` Shameerali Kolothum Thodi via
2024-11-18 10:50 ` Eric Auger
2025-01-30 16:41 ` Daniel P. Berrangé
2024-12-13 12:00 ` Daniel P. Berrangé
2024-12-13 12:46 ` Jason Gunthorpe
2024-12-13 13:19 ` Daniel P. Berrangé
2024-12-16 9:38 ` Shameerali Kolothum Thodi via
2024-12-17 18:36 ` Donald Dutile
2024-12-13 13:33 ` Peter Maydell
2024-12-16 10:01 ` Shameerali Kolothum Thodi via
2025-01-09 4:45 ` Nicolin Chen
2025-01-11 4:05 ` Donald Dutile
2025-01-23 4:10 ` Nicolin Chen
2025-01-23 8:28 ` Shameerali Kolothum Thodi via
2025-01-23 8:40 ` Nicolin Chen
2025-01-23 11:07 ` Duan, Zhenzhong
2025-02-17 9:17 ` Duan, Zhenzhong
2025-02-18 6:52 ` Shameerali Kolothum Thodi via
2025-03-06 17:59 ` Eric Auger
2025-03-06 18:27 ` Shameerali Kolothum Thodi via
2025-03-06 18:40 ` Eric Auger
2025-01-31 16:54 ` Eric Auger
2025-02-03 18:50 ` Nicolin Chen
2025-02-04 17:49 ` Eric Auger
2025-02-05 0:08 ` Nicolin Chen
2025-02-05 10:43 ` Shameerali Kolothum Thodi via
2025-02-05 12:35 ` Eric Auger
2025-02-06 10:34 ` Shameerali Kolothum Thodi via
2025-02-06 18:58 ` Nicolin Chen
2025-03-03 15:21 ` Shameerali Kolothum Thodi via
2025-03-03 17:04 ` Nicolin Chen
2025-03-04 9:30 ` Shameerali Kolothum Thodi via
2025-01-30 16:00 ` Daniel P. Berrangé
2025-01-30 18:09 ` Shameerali Kolothum Thodi via
2025-01-31 9:33 ` Shameerali Kolothum Thodi via
2025-01-31 10:07 ` Eric Auger
2025-01-31 14:24 ` Jason Gunthorpe
2025-01-31 14:39 ` Shameerali Kolothum Thodi via
2025-01-31 14:54 ` Jason Gunthorpe
2025-01-31 15:23 ` Shameerali Kolothum Thodi via
2025-01-31 16:08 ` Eric Auger
2025-02-05 20:53 ` Nathan Chen
2025-02-06 8:54 ` Daniel P. Berrangé
2025-02-06 8:53 ` Daniel P. Berrangé
2025-02-06 16:44 ` Eric Auger
2025-01-31 21:41 ` Daniel P. Berrangé
2025-02-06 10:02 ` Shameerali Kolothum Thodi via
2025-02-06 10:37 ` Daniel P. Berrangé
2025-02-06 13:51 ` Shameerali Kolothum Thodi via
2025-02-06 14:46 ` Daniel P. Berrangé
2025-02-06 15:07 ` Shameerali Kolothum Thodi via
2025-02-06 17:02 ` Jason Gunthorpe
2025-02-06 17:10 ` Daniel P. Berrangé
2025-02-06 17:46 ` Jason Gunthorpe
2025-02-06 17:54 ` Daniel P. Berrangé
2025-02-06 17:58 ` Jason Gunthorpe
2025-02-06 18:04 ` Shameerali Kolothum Thodi via
2025-02-06 18:13 ` Jason Gunthorpe
2025-02-06 18:18 ` Shameerali Kolothum Thodi via
2025-02-06 18:22 ` Jason Gunthorpe
2025-02-06 20:33 ` Nicolin Chen
2025-02-06 20:38 ` Jason Gunthorpe
2025-02-06 20:48 ` Nicolin Chen
2025-02-06 21:11 ` Jason Gunthorpe
2025-02-06 22:46 ` Nicolin Chen
2025-02-07 0:08 ` Jason Gunthorpe
2025-02-07 10:21 ` Shameerali Kolothum Thodi via
2025-02-07 10:31 ` Daniel P. Berrangé
2025-02-07 12:21 ` Shameerali Kolothum Thodi via
2025-02-07 12:53 ` Jason Gunthorpe
2025-02-06 18:18 ` Daniel P. Berrangé
2025-02-06 17:57 ` Shameerali Kolothum Thodi via
2025-02-06 17:59 ` Jason Gunthorpe
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