From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: Vivek Gautam <vivek.gautam@arm.com>
Cc: jacob.jun.pan@linux.intel.com, mst@redhat.com, joro@8bytes.org,
will.deacon@arm.com, linux-kernel@vger.kernel.org,
shameerali.kolothum.thodi@huawei.com,
virtualization@lists.linux-foundation.org, eric.auger@redhat.com,
iommu@lists.linux-foundation.org, yi.l.liu@intel.com,
lorenzo.pieralisi@arm.com, robin.murphy@arm.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH RFC v1 08/15] iommu: Add asid_bits to arm smmu-v3 stage1 table info
Date: Wed, 3 Mar 2021 18:18:49 +0100 [thread overview]
Message-ID: <YD/E+XASgn9PL9HM@myrica> (raw)
In-Reply-To: <20210115121342.15093-9-vivek.gautam@arm.com>
On Fri, Jan 15, 2021 at 05:43:35PM +0530, Vivek Gautam wrote:
> aisd_bits data is required to prepare stage-1 tables for arm-smmu-v3.
>
> Signed-off-by: Vivek Gautam <vivek.gautam@arm.com>
> Cc: Joerg Roedel <joro@8bytes.org>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: Robin Murphy <robin.murphy@arm.com>
> Cc: Jean-Philippe Brucker <jean-philippe@linaro.org>
> Cc: Eric Auger <eric.auger@redhat.com>
> Cc: Alex Williamson <alex.williamson@redhat.com>
> Cc: Kevin Tian <kevin.tian@intel.com>
> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
> Cc: Liu Yi L <yi.l.liu@intel.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>
> ---
> include/uapi/linux/iommu.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/uapi/linux/iommu.h b/include/uapi/linux/iommu.h
> index 082d758dd016..96abbfc7c643 100644
> --- a/include/uapi/linux/iommu.h
> +++ b/include/uapi/linux/iommu.h
> @@ -357,7 +357,7 @@ struct iommu_pasid_smmuv3 {
> __u32 version;
> __u8 s1fmt;
> __u8 s1dss;
> - __u8 padding[2];
> + __u16 asid_bits;
Is this used anywhere? This struct is passed from host userspace to host
kernel to attach the PASID table, so I don't think it needs an asid_bits
field.
Thanks,
Jean
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next prev parent reply other threads:[~2021-03-03 18:23 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210115121342.15093-1-vivek.gautam@arm.com>
2021-01-19 9:03 ` [PATCH RFC v1 00/15] iommu/virtio: Nested stage support with Arm Auger Eric
[not found] ` <ba4c30b9-1f31-f6b2-e69a-7bb71ce74d57@arm.com>
2021-01-25 8:43 ` Auger Eric
[not found] ` <20210115121342.15093-3-vivek.gautam@arm.com>
2021-03-03 17:11 ` [PATCH RFC v1 02/15] iommu: Add a simple PASID table library Jean-Philippe Brucker
[not found] ` <cd030006-2701-206d-5fca-e0e7afff316a@arm.com>
2021-03-29 16:25 ` Jean-Philippe Brucker
[not found] ` <20210115121342.15093-5-vivek.gautam@arm.com>
2021-03-03 17:14 ` [PATCH RFC v1 04/15] iommu/arm-smmu-v3: Update CD base address info for user-space Jean-Philippe Brucker
[not found] ` <20210115121342.15093-6-vivek.gautam@arm.com>
2021-03-03 17:15 ` [PATCH RFC v1 05/15] iommu/arm-smmu-v3: Set sync op from consumer driver of cd-lib Jean-Philippe Brucker
[not found] ` <20210115121342.15093-7-vivek.gautam@arm.com>
2021-03-03 17:17 ` [PATCH RFC v1 06/15] iommu/virtio: Add headers for table format probing Jean-Philippe Brucker
[not found] ` <20210115121342.15093-9-vivek.gautam@arm.com>
2021-03-03 17:18 ` Jean-Philippe Brucker [this message]
[not found] ` <20210115121342.15093-10-vivek.gautam@arm.com>
2021-03-03 17:21 ` [PATCH RFC v1 09/15] iommu/virtio: Update table format probing header Jean-Philippe Brucker
[not found] ` <20210115121342.15093-14-vivek.gautam@arm.com>
2021-03-03 17:25 ` [PATCH RFC v1 13/15] iommu/virtio: Attach Arm PASID tables when available Jean-Philippe Brucker
[not found] ` <ee88590b-513e-7821-ab52-18d496ad90dc@arm.com>
2021-03-29 16:21 ` Jean-Philippe Brucker
[not found] ` <20210115121342.15093-16-vivek.gautam@arm.com>
2021-03-03 17:25 ` [PATCH RFC v1 15/15] iommu/virtio: Update fault type and reason info for viommu fault Jean-Philippe Brucker
[not found] ` <d8a81406-12c6-a5e1-7297-49c1a0a800ab@arm.com>
2021-03-29 16:23 ` Jean-Philippe Brucker
[not found] ` <20210115121342.15093-13-vivek.gautam@arm.com>
[not found] ` <20210303102848.5d879f0e@jacob-builder>
2021-03-04 5:58 ` [PATCH RFC v1 12/15] iommu/virtio: Add support for INVALIDATE request Tian, Kevin
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