From: "Michael S. Tsirkin" <mst@redhat.com>
To: Jean-Philippe Brucker <jean-philippe@linaro.org>
Cc: rjw@rjwysocki.net, lenb@kernel.org, joro@8bytes.org,
will@kernel.org, linux-acpi@vger.kernel.org,
iommu@lists.linux-foundation.org,
virtualization@lists.linux-foundation.org, eric.auger@redhat.com,
sebastien.boeuf@intel.com, robin.murphy@arm.com,
kevin.tian@intel.com, lorenzo.pieralisi@arm.com
Subject: Re: [PATCH 3/3] iommu/virtio: Enable x86 support
Date: Thu, 18 Mar 2021 14:28:02 -0400 [thread overview]
Message-ID: <20210318142709-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20210316191652.3401335-4-jean-philippe@linaro.org>
On Tue, Mar 16, 2021 at 08:16:54PM +0100, Jean-Philippe Brucker wrote:
> With the VIOT support in place, x86 platforms can now use the
> virtio-iommu.
>
> The arm64 Kconfig selects IOMMU_DMA, while x86 IOMMU drivers select it
> themselves.
>
> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
> ---
> drivers/iommu/Kconfig | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> index 2819b5c8ec30..ccca83ef2f06 100644
> --- a/drivers/iommu/Kconfig
> +++ b/drivers/iommu/Kconfig
> @@ -400,8 +400,9 @@ config HYPERV_IOMMU
> config VIRTIO_IOMMU
> tristate "Virtio IOMMU driver"
> depends on VIRTIO
> - depends on ARM64
> + depends on (ARM64 || X86)
> select IOMMU_API
> + select IOMMU_DMA if X86
Would it hurt to just select unconditionally? Seems a bit cleaner
...
> select INTERVAL_TREE
> select ACPI_VIOT if ACPI
> help
> --
> 2.30.2
next prev parent reply other threads:[~2021-03-18 18:29 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-16 19:16 [PATCH 0/3] Add support for ACPI VIOT Jean-Philippe Brucker
2021-03-16 19:16 ` [PATCH 1/3] ACPICA: iASL: Add definitions for the VIOT table Jean-Philippe Brucker
2021-03-18 17:52 ` Auger Eric
2021-04-15 14:36 ` Jean-Philippe Brucker
2021-03-16 19:16 ` [PATCH 2/3] ACPI: Add driver " Jean-Philippe Brucker
2021-03-18 19:36 ` Robin Murphy
2021-04-15 14:31 ` Jean-Philippe Brucker
2021-03-19 10:44 ` Auger Eric
2021-04-15 14:46 ` Jean-Philippe Brucker
2021-03-16 19:16 ` [PATCH 3/3] iommu/virtio: Enable x86 support Jean-Philippe Brucker
2021-03-18 10:44 ` Joerg Roedel
2021-03-18 11:43 ` Robin Murphy
2021-04-15 15:14 ` Jean-Philippe Brucker
2021-03-18 18:28 ` Michael S. Tsirkin [this message]
2021-04-15 15:15 ` Jean-Philippe Brucker
2021-03-19 10:58 ` [PATCH 0/3] Add support for ACPI VIOT Auger Eric
2021-03-19 11:16 ` Jean-Philippe Brucker
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