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[Qemu-arm] [PATCH v1 0/6] Allow memory_region_register_iommu_notifier()
From: |
Eric Auger |
Subject: |
[Qemu-arm] [PATCH v1 0/6] Allow memory_region_register_iommu_notifier() to fail |
Date: |
Fri, 13 Sep 2019 10:36:09 +0200 |
This series allows the memory_region_register_iommu_notifier()
to fail. As of now, when a MAP notifier is attempted to be
registered along with SMMUv3, Intel iommu without caching mode
or AMD IOMMU, we exit in the IOMMU MR notify_flag_changed()
callback. In case of VFIO assigned device hotplug, this could be
handled more nicely directly within the VFIO code, simply rejecting
the hotplug without exiting. This is what the series achieves
by handling the memory_region_register_iommu_notifier() returned
value.
Best Regards
Eric
This series can be found at:
https://github.com/eauger/qemu/tree/v4.1.0_register_iommu_notifier_fail_v1
History:
Follow-up of "VFIO/SMMUv3: Fail on VFIO/HW nested paging detection"
https://patchew.org/QEMU/address@hidden/
Eric Auger (6):
memory: allow memory_region_register_iommu_notifier() to fail
vfio/common: Handle memory_region_register_iommu_notifier() failure
exec: assert on memory_region_register_iommu_notifier() failure
vhost: assert on memory_region_register_iommu_notifier() failure
intel_iommu: Let vtd_iommu_notify_flag_changed() fail
amd_iommu: Let amdvi_iommu_notify_flag_changed() fail
exec.c | 3 ++-
hw/arm/smmuv3.c | 8 +++++---
hw/i386/amd_iommu.c | 9 +++++----
hw/i386/intel_iommu.c | 9 +++++----
hw/ppc/spapr_iommu.c | 7 ++++---
hw/vfio/common.c | 8 ++++++--
hw/virtio/vhost.c | 2 +-
include/exec/memory.h | 18 +++++++++++++-----
memory.c | 28 ++++++++++++++++++----------
9 files changed, 59 insertions(+), 33 deletions(-)
--
2.20.1
- [Qemu-arm] [PATCH v1 0/6] Allow memory_region_register_iommu_notifier() to fail,
Eric Auger <=
- [Qemu-arm] [PATCH v1 1/6] memory: allow memory_region_register_iommu_notifier() to fail, Eric Auger, 2019/09/13
- [Qemu-arm] [PATCH v1 2/6] vfio/common: Handle memory_region_register_iommu_notifier() failure, Eric Auger, 2019/09/13
- [Qemu-arm] [PATCH v1 3/6] exec: assert on memory_region_register_iommu_notifier() failure, Eric Auger, 2019/09/13
- [Qemu-arm] [PATCH v1 4/6] vhost: assert on memory_region_register_iommu_notifier() failure, Eric Auger, 2019/09/13
- [Qemu-arm] [PATCH v1 5/6] intel_iommu: Let vtd_iommu_notify_flag_changed() fail, Eric Auger, 2019/09/13
- [Qemu-arm] [PATCH v1 6/6] amd_iommu: Let amdvi_iommu_notify_flag_changed() fail, Eric Auger, 2019/09/13