From: Sonang Patel <sonangp@nvidia.com>
To: "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
Cc: <linux-coco@lists.linux.dev>, <iommu@lists.linux.dev>,
<linux-kernel@vger.kernel.org>, <kvm@vger.kernel.org>,
Jason Gunthorpe <jgg@ziepe.ca>,
Alexey Kardashevskiy <aik@amd.com>,
Bjorn Helgaas <helgaas@kernel.org>,
Joerg Roedel <joro@8bytes.org>,
Jonathan Cameron <jic23@kernel.org>,
Kevin Tian <kevin.tian@intel.com>,
Nicolin Chen <nicolinc@nvidia.com>,
Samuel Ortiz <sameo@rivosinc.com>,
Steven Price <steven.price@arm.com>,
Suzuki K Poulose <Suzuki.Poulose@arm.com>,
"Will Deacon" <will@kernel.org>,
Xu Yilun <yilun.xu@linux.intel.com>,
"Shameer Kolothum" <shameerali.kolothum.thodi@huawei.com>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [RFC PATCH v6 11/11] PCI/TSM: Add reference-counted contexts for vdevice providers
Date: Tue, 29 Sep 2026 00:17:30 +0530 [thread overview]
Message-ID: <arq2Ql3-q9EApe3X@sonangrm.nvidia.com> (raw)
In-Reply-To: <20260917140159.1163281-12-aneesh.kumar@kernel.org>
On Thu, 17 Sep 2026 19:31:59 +0530, Aneesh Kumar K.V (Arm) wrote:
> + if (is_pci_tsm_pf0(pdev)) {
> + if (pci_tsm_disconnect(pdev))
> + pci_warn(pdev, "TSM connection is still in use\n");
> + } else {
> + tsm_remove(pdev->tsm);
> + }
What happens if the PCI device is removed (e.g. sysfs remove, surprise
hot-unplug) while the vDEVICE/TDI still exists?
Since removal cannot be refused, should the remove path still force
the unbind/unlock?
Thanks,
Sonang Patel
next prev parent reply other threads:[~2026-09-28 18:48 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 14:01 [RFC PATCH v6 00/11] iommufd: Infrastructure for vIOMMU creation for confidential guests and guest TSM requests Aneesh Kumar K.V (Arm)
2026-09-17 14:01 ` [RFC PATCH v6 01/11] vfio: cache KVM VM file references instead of raw struct kvm pointers Aneesh Kumar K.V (Arm)
2026-09-24 19:41 ` Jason Gunthorpe
2026-09-30 7:19 ` Aneesh Kumar K.V
2026-09-17 14:01 ` [RFC PATCH v6 02/11] vfio: cdev: Reject duplicate bind before updating KVM file Aneesh Kumar K.V (Arm)
2026-09-24 7:53 ` Tian, Kevin
2026-09-25 5:49 ` Aneesh Kumar K.V
2026-09-17 14:01 ` [RFC PATCH v6 03/11] iommufd/device: Associate KVM file pointer with iommufd_device Aneesh Kumar K.V (Arm)
2026-09-17 14:01 ` [RFC PATCH v6 04/11] iommufd/viommu: Keep a reference to the KVM file Aneesh Kumar K.V (Arm)
2026-09-30 13:28 ` Vasant Hegde
2026-10-02 5:26 ` Aneesh Kumar K.V
2026-09-17 14:01 ` [RFC PATCH v6 05/11] iommu: Add a helper to validate a vIOMMU parent Aneesh Kumar K.V (Arm)
2026-09-24 19:41 ` Jason Gunthorpe
2026-09-25 5:48 ` Aneesh Kumar K.V
2026-09-25 12:23 ` Jason Gunthorpe
2026-09-28 10:36 ` Aneesh Kumar K.V
2026-09-28 12:11 ` Jason Gunthorpe
2026-09-28 15:39 ` Aneesh Kumar K.V
2026-09-28 16:17 ` Jason Gunthorpe
2026-09-28 18:08 ` Jacob Pan
2026-09-28 18:20 ` Jason Gunthorpe
2026-09-28 22:24 ` Jacob Pan
2026-09-28 23:03 ` Jason Gunthorpe
2026-09-29 5:55 ` Jacob Pan
2026-09-29 12:30 ` Jason Gunthorpe
2026-09-29 23:15 ` Jacob Pan
2026-09-29 23:30 ` Jason Gunthorpe
2026-09-17 14:01 ` [RFC PATCH v6 06/11] iommu: Add a helper to query vIOMMU hardware parameters Aneesh Kumar K.V (Arm)
2026-09-24 19:41 ` Jason Gunthorpe
2026-09-25 5:59 ` Aneesh Kumar K.V
2026-09-25 12:29 ` Jason Gunthorpe
2026-09-17 14:01 ` [RFC PATCH v6 07/11] coco: tsm: Expose active-user lifetime references Aneesh Kumar K.V (Arm)
2026-09-17 14:01 ` [RFC PATCH v6 08/11] iommufd: Add vIOMMU provider support Aneesh Kumar K.V (Arm)
2026-09-24 19:41 ` Jason Gunthorpe
2026-09-25 6:08 ` Aneesh Kumar K.V
2026-09-25 12:39 ` Jason Gunthorpe
2026-09-28 3:41 ` Tian, Kevin
2026-09-29 6:14 ` Aneesh Kumar K.V
2026-09-29 12:17 ` Jason Gunthorpe
2026-09-29 12:45 ` Aneesh Kumar K.V
2026-09-29 13:06 ` Jason Gunthorpe
2026-09-29 15:58 ` Aneesh Kumar K.V
2026-09-29 19:10 ` Jason Gunthorpe
2026-09-28 10:51 ` Aneesh Kumar K.V
2026-09-17 14:01 ` [RFC PATCH v6 09/11] iommufd: Add the vdevice TSM request ioctl Aneesh Kumar K.V (Arm)
2026-09-18 13:09 ` Alexey Kardashevskiy
2026-09-18 13:13 ` Jason Gunthorpe
2026-09-24 19:41 ` Jason Gunthorpe
2026-09-30 8:03 ` Aneesh Kumar K.V
2026-09-30 13:26 ` Vasant Hegde
2026-09-30 14:03 ` Jason Gunthorpe
2026-09-30 14:08 ` Jason Gunthorpe
2026-09-17 14:01 ` [RFC PATCH v6 10/11] PCI/TSM: Remove the legacy guest request interface Aneesh Kumar K.V (Arm)
2026-09-17 14:01 ` [RFC PATCH v6 11/11] PCI/TSM: Add reference-counted contexts for vdevice providers Aneesh Kumar K.V (Arm)
2026-09-24 8:17 ` Tian, Kevin
2026-09-24 19:41 ` Jason Gunthorpe
2026-09-25 8:15 ` Aneesh Kumar K.V
2026-09-28 18:47 ` Sonang Patel [this message]
2026-09-28 23:08 ` Jason Gunthorpe
2026-10-02 6:14 ` Aneesh Kumar K.V
2026-10-02 13:06 ` Jason Gunthorpe
2026-09-17 14:17 ` [RFC PATCH v6 00/11] iommufd: Infrastructure for vIOMMU creation for confidential guests and guest TSM requests Aneesh Kumar K.V
2026-09-24 7:48 ` Tian, Kevin
2026-09-24 19:20 ` Jason Gunthorpe
2026-09-28 3:35 ` Tian, Kevin
2026-09-28 13:08 ` Jason Gunthorpe
2026-09-25 8:29 ` Aneesh Kumar K.V
2026-09-28 3:41 ` Tian, Kevin
2026-09-28 3:55 ` Tian, Kevin
2026-09-24 19:09 ` Jason Gunthorpe
2026-09-25 6:46 ` Aneesh Kumar K.V
2026-09-25 12:45 ` Jason Gunthorpe
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