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Message-Id: <20250627033809.1730752-1-yilun.xu@linux.intel.com>
Date: Fri, 27 Jun 2025 11:38:04 +0800
From: Xu Yilun <yilun.xu@...ux.intel.com>
To: jgg@...dia.com,
jgg@...pe.ca,
kevin.tian@...el.com,
will@...nel.org,
aneesh.kumar@...nel.org
Cc: iommu@...ts.linux.dev,
linux-kernel@...r.kernel.org,
joro@...tes.org,
robin.murphy@....com,
shuah@...nel.org,
nicolinc@...dia.com,
aik@....com,
dan.j.williams@...el.com,
baolu.lu@...ux.intel.com,
yilun.xu@...el.com
Subject: [PATCH v3 0/5] iommufd: Destroy vdevice on device unbind
It is to solve the lifecycle issue that vdevice may outlive idevice. It
is a prerequisite for TIO, to ensure extra secure configurations (e.g.
TSM Bind/Unbind) against vdevice could be rolled back on idevice unbind,
so that VFIO could still work on the physical device without surprise.
Changelog:
v3:
- No bother clean each tombstone in iommufd_fops_release().
- Drop vdev->ictx initialization fix patch.
- Optimize control flow in iommufd_device_remove_vdev().
- Make iommufd_vdevice_abort() reentrant.
- Call iommufd_vdevice_abort() directly instead of waiting for it.
- Rephrase/fix some comments.
- A new patch to remove vdev->dev.
- A new patch to explicitly skip existing viommu tests for no_iommu.
- Also skip vdevice tombstone test for no_iommu.
- Allow me to add SoB from Aneesh.
v2: https://lore.kernel.org/linux-iommu/20250623094946.1714996-1-yilun.xu@linux.intel.com/
v1/rfc: https://lore.kernel.org/linux-iommu/20250610065146.1321816-1-aneesh.kumar@kernel.org/
The series is based on v6.16-rc1
Xu Yilun (5):
iommufd: Add iommufd_object_tombstone_user() helper
iommufd: Destroy vdevice on idevice destroy
iommufd/vdevice: Remove struct device reference from struct vdevice
iommufd/selftest: Explicitly skip tests for inapplicable variant
iommufd/selftest: Add coverage for vdevice tombstone
drivers/iommu/iommufd/device.c | 42 +++
drivers/iommu/iommufd/driver.c | 4 +-
drivers/iommu/iommufd/iommufd_private.h | 35 ++-
drivers/iommu/iommufd/main.c | 20 +-
drivers/iommu/iommufd/viommu.c | 47 ++-
tools/testing/selftests/iommu/iommufd.c | 388 ++++++++++++------------
6 files changed, 337 insertions(+), 199 deletions(-)
base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
--
2.25.1
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