Re: [PATCH v2 0/8] iommu: Add PASID support to Arm SMMUv3

From: zhangfei <zhangfei.gao@linaro.org>
To: Jean-Philippe Brucker <jean-philippe@linaro.org>,
	iommu@lists.linux-foundation.org, devicetree@vger.kernel.org,
	linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc: joro@8bytes.org, robh+dt@kernel.org, mark.rutland@arm.com,
	lorenzo.pieralisi@arm.com, guohanjun@huawei.com,
	sudeep.holla@arm.com, rjw@rjwysocki.net, lenb@kernel.org,
	will@kernel.org, robin.murphy@arm.com, zhangfei.gao@linaro.org,
	eric.auger@redhat.com, jonathan.cameron@huawei.com
Subject: Re: [PATCH v2 0/8] iommu: Add PASID support to Arm SMMUv3
Date: Tue, 12 Nov 2019 18:02:08 +0800	[thread overview]
Message-ID: <8a23f064-129a-02c3-4e14-63db45d7f851@linaro.org> (raw)
In-Reply-To: <20191108152508.4039168-1-jean-philippe@linaro.org>


On 2019/11/8 下午11:25, Jean-Philippe Brucker wrote:
> This is version 2 of the series I sent a while ago [1], adding PASID
> support to the Arm SMMUv3 driver.
>
> Changes since v1:
> * Dropped the patch adding auxiliary domain support. It's an easy way to
>    test PASID, by populating PASID contexts using iommu_map/unmap(), but
>    I don't know if it will ever have real users.
>
>    Since v1 I changed my testing gear, and am using the zip accelerator
>    [2] instead of a software model. It only uses SVA and testing
>    auxiliary domains would require additional changes that would never go
>    upstream. SVA requires another 20 patches (including I/O page faults)
>    that I will send later, but at least I know that this will get used.
>
> * ioasid patch has been carried by Jacob and should be merged for v5.5 [3]
>
> * Split patch "Add support for Substream IDs" into patches 4 and 5.
>
> * Added IORT support (patch 3) and addressed other comments.
>
> [1] https://lore.kernel.org/linux-iommu/20190610184714.6786-1-jean-philippe.brucker@arm.com/
> [2] https://lore.kernel.org/linux-iommu/1572331216-9503-1-git-send-email-zhangfei.gao@linaro.org/
> [3] https://lore.kernel.org/linux-iommu/1570045363-24856-1-git-send-email-jacob.jun.pan@linux.intel.com/
>
> Jean-Philippe Brucker (8):
>    dt-bindings: document PASID property for IOMMU masters
>    iommu/arm-smmu-v3: Support platform SSID
>    ACPI/IORT: Support PASID for platform devices
>    iommu/arm-smmu-v3: Prepare for SSID support
>    iommu/arm-smmu-v3: Add support for Substream IDs
>    iommu/arm-smmu-v3: Add second level of context descriptor table
>    iommu/arm-smmu-v3: Improve add_device() error handling
>    iommu/arm-smmu-v3: Add support for PCI PASID
Thanks Jean for the patch
The series tested well on Hisilicon platform KunPeng920
Tested-by: Zhangfei Gao <zhangfei.gao@linaro.org>