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Re: [Qemu-devel] [Qemu-arm] [PATCH v4 0/5] virtio-iommu: VFIO integratio
From: |
Auger Eric |
Subject: |
Re: [Qemu-devel] [Qemu-arm] [PATCH v4 0/5] virtio-iommu: VFIO integration |
Date: |
Wed, 27 Sep 2017 10:55:07 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 |
Hi Linu,
On 27/09/2017 10:30, Bharat Bhushan wrote:
> Hi,
>
>> -----Original Message-----
>> From: Linu Cherian [mailto:address@hidden
>> Sent: Wednesday, September 27, 2017 1:11 PM
>> To: Bharat Bhushan <address@hidden>
>> Cc: address@hidden; address@hidden;
>> address@hidden; address@hidden; address@hidden;
>> address@hidden; address@hidden; address@hidden;
>> address@hidden; address@hidden; address@hidden;
>> address@hidden; address@hidden; address@hidden;
>> address@hidden
>> Subject: Re: [Qemu-arm] [PATCH v4 0/5] virtio-iommu: VFIO integration
>>
>> Hi,
>>
>> On Wed Sep 27, 2017 at 12:03:15PM +0530, Bharat Bhushan wrote:
>>> This patch series integrates VFIO/VHOST with virtio-iommu.
>>>
>>> This version is mainly about rebasing on v4 version on virtio-iommu
>>> device framework from Eric Augur and addresing review comments.
>>>
>>> This patch series allows PCI pass-through using virtio-iommu.
>>>
>>> This series is based on:
>>> - virtio-iommu kernel driver by Jean-Philippe Brucker
>>> [1] [RFC] virtio-iommu version 0.4
>>> git://linux-arm.org/virtio-iommu.git branch viommu/v0.4
Just to make sure, do you use the v0.4 virtio-iommu driver from above
branch?
Thanks
Eric
>>>
>>> - virtio-iommu device emulation by Eric Augur.
>>> [RFC v4 00/16] VIRTIO-IOMMU device
>>> https://github.com/eauger/qemu/tree/v2.10.0-virtio-iommu-v4
>>>
>>> Changes are available at : https://github.com/bharaty/qemu.git
>>> virtio-iommu-vfio-integration-v4
>>>
>>
>> # With the above sources, was trying to test the vfio-pci device assigned to
>> guest using Qemu.
>> # Both guest and host kernels are configured with 4k as page size.
>> # releavant qemu command snippet,
>> -device virtio-iommu-device -device virtio-blk-device,drive=hd0 \
>> -net none -device vfio-pci,host=xxx
>>
>>
>> On guest booting, observed mutliple messages as below,
>>
>> qemu-system-aarch64: iommu has granularity incompatible with target AS
>>
>> # On adding necessary prints, 0x5000 is len, 0x4fff is address mask
>> and the code expects the address mask to be 0xfff.
>
> I have not seen these errors, I am also using 4K page-size on both host and
> guest. Can you share compete qemu command and log.
>
> Thanks
> -Bharat
>
>>
>> if (len & iotlb->addr_mask) {
>> error_report
>>
>> # vfio_dma_map is failing due to this error.
>>
>> Any pointers ?
>>
>>
>>> v3->v4:
>>> - Rebase to v4 version from Eric
>>> - Fixes from Eric with DPDK in VM
>>> - Logical division in multiple patches
>>>
>>> v2->v3:
>>> - This series is based on "[RFC v3 0/8] VIRTIO-IOMMU device"
>>> Which is based on top of v2.10-rc0 that
>>> - Fixed issue with two PCI devices
>>> - Addressed review comments
>>>
>>> v1->v2:
>>> - Added trace events
>>> - removed vSMMU3 link in patch description
>>>
>>> Bharat Bhushan (5):
>>> target/arm/kvm: Translate the MSI doorbell in
>> kvm_arch_fixup_msi_route
>>> virtio-iommu: Add iommu notifier for map/unmap
>>> virtio-iommu: Call iommu notifier for attach/detach
>>> virtio-iommu: add iommu replay
>>> virtio-iommu: add iommu notifier memory-region
>>>
>>> hw/virtio/trace-events | 5 ++
>>> hw/virtio/virtio-iommu.c | 181
>> ++++++++++++++++++++++++++++++++++++++-
>>> include/hw/virtio/virtio-iommu.h | 6 ++
>>> target/arm/kvm.c | 27 ++++++
>>> target/arm/trace-events | 3 +
>>> 5 files changed, 219 insertions(+), 3 deletions(-)
>>>
>>> --
>>> 1.9.3
>>>
>>>
>>
>> --
>> Linu cherian
- [Qemu-devel] [PATCH v4 1/5] target/arm/kvm: Translate the MSI doorbell in kvm_arch_fixup_msi_route, (continued)
- [Qemu-devel] [PATCH v4 1/5] target/arm/kvm: Translate the MSI doorbell in kvm_arch_fixup_msi_route, Bharat Bhushan, 2017/09/27
- [Qemu-devel] [PATCH v4 2/5] virtio-iommu: Add iommu notifier for map/unmap, Bharat Bhushan, 2017/09/27
- [Qemu-devel] [PATCH v4 4/5] virtio-iommu: add iommu replay, Bharat Bhushan, 2017/09/27
- [Qemu-devel] [PATCH v4 3/5] virtio-iommu: Call iommu notifier for attach/detach, Bharat Bhushan, 2017/09/27
- [Qemu-devel] [PATCH v4 5/5] virtio-iommu: add iommu notifier memory-region, Bharat Bhushan, 2017/09/27
- Re: [Qemu-devel] [PATCH v4 0/5] virtio-iommu: VFIO integration, Bharat Bhushan, 2017/09/27
- Re: [Qemu-devel] [Qemu-arm] [PATCH v4 0/5] virtio-iommu: VFIO integration, Linu Cherian, 2017/09/27
- Re: [Qemu-devel] [Qemu-arm] [PATCH v4 0/5] virtio-iommu: VFIO integration, Linu Cherian, 2017/09/27