From: Auger Eric <eric.auger@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: "Tian, Kevin" <kevin.tian@intel.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
jean-philippe.brucker@arm.com, Tomasz Nowicki <tn@semihalf.com>,
Will Deacon <will.deacon@arm.com>,
Andrew Jones <drjones@redhat.com>, Peter Xu <peterx@redhat.com>,
QEMU Developers <qemu-devel@nongnu.org>,
Marc Zyngier <marc.zyngier@arm.com>,
Alex Williamson <alex.williamson@redhat.com>,
qemu-arm <qemu-arm@nongnu.org>,
linuc.decode@gmail.com, Bharat Bhushan <bharat.bhushan@nxp.com>,
Christoffer Dall <christoffer.dall@linaro.org>,
eric.auger.pro@gmail.com
Subject: Re: [Qemu-arm] [Qemu-devel] [RFC v4 00/16] VIRTIO-IOMMU device
Date: Wed, 11 Oct 2017 18:08:58 +0200 [thread overview]
Message-ID: <f3a263b7-27e6-26df-592d-a34902bab6fe@redhat.com> (raw)
In-Reply-To: <CAFEAcA-0MK18DakmNPRXCNYbDpBvzE0h12nNjg7zr+F_m0EnDw@mail.gmail.com>
Hi Peter,
On 11/10/2017 16:56, Peter Maydell wrote:
> On 19 September 2017 at 08:46, Eric Auger <eric.auger@redhat.com> wrote:
>> This series implements the virtio-iommu device.
>>
>> This v4 is an upgrade to v0.4 spec [1] and applies on QEMU v2.10.0.
>> - probe request support although no reserved region is returned at
>> the moment
>> - unmap semantics less strict, as specified in v0.4
>> - device registration, attach/detach revisited
>> - split into smaller patches to ease review
>> - propose a way to inform the IOMMU mr about the page_size_mask
>> of underlying HW IOMMU, if any
>> - remove warning associated with the translation of the MSI doorbell
>>
>> The device gets instantiated using the "-device virtio-iommu-device"
>> option. It currently works with ARM virt machine only, as the machine
>> must handle the dt binding between the virtio-mmio "iommu" node and
>> the PCI host bridge node.
>
> Could this work on x86, or is it inherently arm-only?
Yes this is the goal. At the moment the ACPI probing is not yet properly
specified but a Q35 prototype was developed in the Red Hat Virt team.
This will be presented at the KVM forum.
Thanks
Eric
>
> thanks
> -- PMM
>
next prev parent reply other threads:[~2017-10-11 16:09 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-19 7:46 [Qemu-arm] [RFC v4 00/16] VIRTIO-IOMMU device Eric Auger
2017-09-19 7:46 ` [Qemu-arm] [RFC v4 01/16] update-linux-headers: import virtio_iommu.h Eric Auger
2017-09-19 7:46 ` [Qemu-arm] [RFC v4 02/16] linux-headers: Update for virtio-iommu Eric Auger
2017-09-19 7:46 ` [Qemu-arm] [RFC v4 03/16] virtio-iommu: add skeleton Eric Auger
2017-09-19 7:46 ` [Qemu-arm] [RFC v4 04/16] virtio-iommu: Decode the command payload Eric Auger
2017-09-19 7:46 ` [Qemu-arm] [RFC v4 05/16] virtio-iommu: Add the iommu regions Eric Auger
2017-09-19 7:46 ` [Qemu-arm] [RFC v4 06/16] virtio-iommu: Register attached devices Eric Auger
2017-09-22 7:29 ` Bharat Bhushan
2017-09-19 7:46 ` [Qemu-devel] [RFC v4 07/16] virtio-iommu: Implement attach/detach command Eric Auger
2017-09-19 7:46 ` [Qemu-arm] [RFC v4 08/16] virtio-iommu: Implement map/unmap Eric Auger
2017-09-19 7:46 ` [Qemu-devel] [RFC v4 09/16] virtio-iommu: Implement translate Eric Auger
2017-09-22 6:52 ` [Qemu-arm] " Bharat Bhushan
2017-09-19 7:46 ` [Qemu-arm] [RFC v4 10/16] virtio-iommu: Implement probe request Eric Auger
2017-09-27 10:53 ` Tomasz Nowicki
2017-09-27 11:00 ` Bharat Bhushan
2017-09-27 15:44 ` [Qemu-arm] [Qemu-devel] " Auger Eric
2017-09-27 15:40 ` Auger Eric
2017-09-19 7:46 ` [Qemu-devel] [RFC v4 11/16] hw/arm/virt: Add 2.11 machine type Eric Auger
2017-09-19 7:46 ` [Qemu-arm] [RFC v4 12/16] hw/arm/virt: Add virtio-iommu to the virt board Eric Auger
2017-09-19 7:46 ` [Qemu-devel] [RFC v4 13/16] memory.h: Add set_page_size_mask IOMMUMemoryRegion callback Eric Auger
2017-09-19 7:46 ` [Qemu-devel] [RFC v4 14/16] hw/vfio/common: Set the IOMMUMemoryRegion supported page sizes Eric Auger
2017-09-19 7:46 ` [Qemu-arm] [RFC v4 15/16] virtio-iommu: Implement set_page_size_mask Eric Auger
2017-09-19 7:46 ` [Qemu-devel] [RFC v4 16/16] hw/vfio/common: Do not print error when viommu translates into an mmio region Eric Auger
2017-09-27 11:07 ` [Qemu-arm] [RFC v4 00/16] VIRTIO-IOMMU device Tomasz Nowicki
2017-09-27 15:38 ` [Qemu-arm] [Qemu-devel] " Auger Eric
2017-10-11 14:56 ` Peter Maydell
2017-10-11 16:08 ` Auger Eric [this message]
2017-10-12 9:54 ` [Qemu-arm] " Peter Maydell
2017-10-12 10:09 ` Auger Eric
2017-10-12 10:46 ` [Qemu-arm] " Jean-Philippe Brucker
2017-10-13 7:01 ` Tian, Kevin
2017-10-13 7:43 ` [Qemu-arm] " Auger Eric
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