From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: Ani Sinha <ani@anisinha.ca>
Cc: peter.maydell@linaro.org, ehabkost@redhat.com,
shannon.zhaosl@gmail.com, mst@redhat.com,
richard.henderson@linaro.org, qemu-devel@nongnu.org,
eric.auger@redhat.com, qemu-arm@nongnu.org, pbonzini@redhat.com,
imammedo@redhat.com
Subject: Re: [PATCH v4 09/11] tests/acpi: add test cases for VIOT
Date: Fri, 8 Oct 2021 16:27:08 +0100 [thread overview]
Message-ID: <YWBjTODTiGc/vTTU@myrica> (raw)
In-Reply-To: <alpine.DEB.2.22.394.2110051556270.820442@anisinha-lenovo>
On Tue, Oct 05, 2021 at 03:57:17PM +0530, Ani Sinha wrote:
>
>
> On Fri, 1 Oct 2021, Jean-Philippe Brucker wrote:
>
> > Add two test cases for VIOT, one on the q35 machine and the other on
> > virt. To test complex topologies the q35 test has two PCIe buses that
> > bypass the IOMMU (and are therefore not described by VIOT), and two
> > buses that are translated by virtio-iommu.
> >
> > Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
>
> This might be a stupid question but what about virtio-mmio and single mmio
> cases? I see none of your tables has nodes for those and here too you do
> not add test cases for it.
No it's a good question, there is no support for either at the moment.
virtio-mmio based virtio-iommu is relatively easy to implement, just
requires a little more machine support. QEMU doesn't support putting MMIO
endpoints behind an IOMMU at the moment, and implementing that is more
complicated.
To test the Linux VIOT driver I did both prototypes, but I don't have a
compelling reason or time to upstream them at the moment
https://jpbrucker.net/git/qemu/log/?h=virtio-iommu/acpi-2021-06-02
Thanks,
Jean
next prev parent reply other threads:[~2021-10-08 15:28 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-01 17:33 [PATCH v4 00/11] virtio-iommu: Add ACPI support Jean-Philippe Brucker
2021-10-01 17:33 ` [PATCH v4 01/11] hw/acpi: Add VIOT table Jean-Philippe Brucker
2021-10-06 8:09 ` Igor Mammedov
2021-10-08 15:20 ` Jean-Philippe Brucker
2021-10-01 17:33 ` [PATCH v4 02/11] hw/arm/virt-acpi-build: Add VIOT table for virtio-iommu Jean-Philippe Brucker
2021-10-01 17:33 ` [PATCH v4 03/11] hw/arm/virt: Remove device tree restriction " Jean-Philippe Brucker
2021-10-05 11:57 ` Eric Auger
2021-10-08 15:20 ` Jean-Philippe Brucker
2021-10-01 17:33 ` [PATCH v4 04/11] hw/arm/virt: Reject instantiation of multiple IOMMUs Jean-Philippe Brucker
2021-10-06 6:35 ` Igor Mammedov
2021-10-01 17:33 ` [PATCH v4 05/11] hw/arm/virt: Use object_property_set instead of qdev_prop_set Jean-Philippe Brucker
2021-10-05 9:27 ` Eric Auger
2021-10-06 6:36 ` Igor Mammedov
2021-10-01 17:33 ` [PATCH v4 06/11] hw/i386: Move vIOMMU uniqueness check into pc.c Jean-Philippe Brucker
2021-10-05 11:41 ` Eric Auger
2021-10-01 17:33 ` [PATCH v4 07/11] pc: Allow instantiating a virtio-iommu device Jean-Philippe Brucker
2021-10-05 19:18 ` Eric Auger
2021-10-06 7:19 ` Igor Mammedov
2021-10-08 15:24 ` Jean-Philippe Brucker
2021-10-08 10:46 ` Michael S. Tsirkin
2021-10-01 17:33 ` [PATCH v4 08/11] tests/acpi: allow updates of VIOT expected data files Jean-Philippe Brucker
2021-10-06 8:12 ` Igor Mammedov
2021-10-08 15:26 ` Jean-Philippe Brucker
2021-10-11 15:55 ` Igor Mammedov
2021-10-01 17:33 ` [PATCH v4 09/11] tests/acpi: add test cases for VIOT Jean-Philippe Brucker
2021-10-05 10:27 ` Ani Sinha
2021-10-08 15:27 ` Jean-Philippe Brucker [this message]
2021-10-05 19:40 ` Eric Auger
2021-10-06 8:14 ` Igor Mammedov
2021-10-01 17:33 ` [PATCH v4 10/11] tests/acpi: add expected blob for VIOT test on virt machine Jean-Philippe Brucker
2021-10-05 10:04 ` Ani Sinha
2021-10-08 15:33 ` Jean-Philippe Brucker
2021-10-05 19:38 ` Eric Auger
2021-10-08 15:30 ` Jean-Philippe Brucker
2021-10-01 17:33 ` [PATCH v4 11/11] tests/acpi: add expected blobs for VIOT test on q35 machine Jean-Philippe Brucker
2021-10-05 10:07 ` Ani Sinha
2021-10-05 19:41 ` Eric Auger
2021-10-05 15:45 ` [PATCH v4 00/11] virtio-iommu: Add ACPI support Michael S. Tsirkin
2021-10-08 15:17 ` Jean-Philippe Brucker
2021-10-11 10:10 ` Haiwei Li
2021-10-11 17:34 ` Jean-Philippe Brucker
2021-10-13 0:56 ` Haiwei Li
2021-10-18 15:25 ` Michael S. Tsirkin
2021-10-19 15:39 ` Jean-Philippe Brucker
2021-10-20 15:17 ` Michael S. Tsirkin
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