Public bug reported:
Description:
VFIO (Virtual Function I/O) is an IOMMU/device agnostic framework for
exposing direct device access to user space in a secure IOMMU protected
environment. VFIO/MDEV(mediated device) is based on VFIO to provide a
generic framework for mediated devices simulated by a real physical
device. Current vfio/mdev doesn’t implement full iommu support. With
scalable mode supported by IOMMU hardware, each mediated device could be
isolated and protected by IOMMU. Hence all IOMMU ops could be handled in
vfio/mdev (no dependency on the parent device).
7bd50f0cd2fd 8ac13175cbe9 be068fa236c3
Target Release: 19.10
Target Kernel: 5.2
** Affects: intel
Importance: Undecided
Status: Fix Committed
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: intel-kernel-19.10
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: intel
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1835334
Title:
[IOMMU] vfio/vfio-mdev enhancement for full-iommu support
Status in intel:
Fix Committed
Status in linux package in Ubuntu:
New
Bug description:
Description:
VFIO (Virtual Function I/O) is an IOMMU/device agnostic framework for
exposing direct device access to user space in a secure IOMMU
protected environment. VFIO/MDEV(mediated device) is based on VFIO to
provide a generic framework for mediated devices simulated by a real
physical device. Current vfio/mdev doesn’t implement full iommu
support. With scalable mode supported by IOMMU hardware, each mediated
device could be isolated and protected by IOMMU. Hence all IOMMU ops
could be handled in vfio/mdev (no dependency on the parent device).
7bd50f0cd2fd 8ac13175cbe9 be068fa236c3
Target Release: 19.10
Target Kernel: 5.2
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