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[Qemu-devel] [PATCH-for-4.2 v3 0/5] ARM SMMUv3: Fix spurious notificatio
From: |
Eric Auger |
Subject: |
[Qemu-devel] [PATCH-for-4.2 v3 0/5] ARM SMMUv3: Fix spurious notification errors and assert with vfio |
Date: |
Thu, 11 Jul 2019 08:18:52 +0200 |
As of today when a guest is assigned with a host PCI device and
an SMMUv3, VFIO calls memory_region_iommu_replay() default
implementation. This translates the whole address range and
completely stalls the execution. As VFIO/SMMUv3 integration
is not supported yet (it requires SMMUv3 HW nested paging), let's
recognize this situation and simply assert.
Also the series silences some spurious translation configuration
decoding errors (STE out of span or invalid STE) that may happen
on guest IOVA invalidation notifications.
Best Regards
Eric
Eric Auger (5):
memory: Remove unused memory_region_iommu_replay_all()
memory: Add IOMMU_ATTR_VFIO_NESTED IOMMU memory region attribute
hw/vfio/common: Assert in case of nested mode
hw/arm/smmuv3: Log a guest error when decoding an invalid STE
hw/arm/smmuv3: Remove spurious error messages on IOVA invalidations
hw/arm/smmuv3-internal.h | 1 +
hw/arm/smmuv3.c | 26 ++++++++++++++++++++------
hw/vfio/common.c | 8 ++++++++
include/exec/memory.h | 13 ++-----------
memory.c | 9 ---------
5 files changed, 31 insertions(+), 26 deletions(-)
--
2.20.1
- [Qemu-devel] [PATCH-for-4.2 v3 0/5] ARM SMMUv3: Fix spurious notification errors and assert with vfio,
Eric Auger <=
- [Qemu-devel] [PATCH-for-4.2 v3 1/5] memory: Remove unused memory_region_iommu_replay_all(), Eric Auger, 2019/07/11
- [Qemu-devel] [PATCH-for-4.2 v3 2/5] memory: Add IOMMU_ATTR_VFIO_NESTED IOMMU memory region attribute, Eric Auger, 2019/07/11
- [Qemu-devel] [PATCH-for-4.2 v3 3/5] hw/vfio/common: Assert in case of nested mode, Eric Auger, 2019/07/11
- [Qemu-devel] [PATCH-for-4.2 v3 4/5] hw/arm/smmuv3: Log a guest error when decoding an invalid STE, Eric Auger, 2019/07/11
- [Qemu-devel] [PATCH-for-4.2 v3 5/5] hw/arm/smmuv3: Remove spurious error messages on IOVA invalidations, Eric Auger, 2019/07/11